taxonID	type	description	language	source
3C6787FAFFFF6F32D095FAF188E1FD93.taxon	materials_examined	Type: — Anisopetalon careyanum Hooker (1825 tab. 149)	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFFF6F32D095FAF188E1FD93.taxon	discussion	About 41 species in the eastern Himalayas, Indochina, southern China, and Peninsular Malaysia. In Vietnam 14 species (5 endemics).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFFC6F32D095FDF78C31FC79.taxon	materials_examined	Type: — LAOS. Vientiane: Phu Khao Khouai, 1979, A. D Kerr 913 (holotype C 5938).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFFC6F32D095FDF78C31FC79.taxon	biology_ecology	Habitat and phenology: — Creeping epiphyte in canopies of tall trees in evergreen forest on limestone at elevation of about 1000 m a. s. l.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFFC6F32D095FDF78C31FC79.taxon	distribution	Distribution: — VIETNAM, Son La Province. Thailand, Laos.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFFC6F32D095FDF78C31FC79.taxon	discussion	Note: — A remarkable species with very dense inflorescence and large floral bracts that completely enclose the flowers.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFFC6F32D095FDF78C31FC79.taxon	materials_examined	Studied specimens: — VIETNAM, Son La Province, Mai Son District, Chieng Chung Commune, Ban Ham Village, Huoi Luong Forest, 2020: Truong Ba Vuong, BV 799 (VNM), BV 888 (VNM), photos, https: // en. herbariumle. ru /? t = occ & id = 41858.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFFC6F36D095FBC08F69FB75.taxon	materials_examined	Type: — VIETNAM. Kon Tum Province: Sa Thay District, forest around Ialy Waterfall, 22 November 2024, Truong Ba Vuong, Nghiem Xuan Son, BV 1944 (holotype VNM 00074068!); Truong Ba Vuong, Nghiem Xuan Son, BV 1944 (paratype VNM 00074072!).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFFC6F36D095FBC08F69FB75.taxon	diagnosis	Diagnosis: — Bulbophyllum minhquanii is similar to B. lilacinum in the color of flowers but differs in petals with a long seta at apex, the auricles at base of lip, two small calli at the base and short small keel in middle of the lip, and the large rectangular callus at lower margin of stigma. The new species also shares the swollen callus with B. morphologorum but differs in petals twice longer, keels on the adaxial surface of lip, and the auricles at the lip base.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFFC6F36D095FBC08F69FB75.taxon	description	Description: — Epiphytic creeping herb. Pseudobulbs 1 - leaved, green or dark green, ovoid, 5 – 6 cm tall, 4 - angled, distant on creeping brown rhizome, covered by brownish bracts; rhizome woody, 3.5 – 4 mm in diameter. Leaves petiolate; petiole 1.5 – 2 cm long, leaf blade glossy, dark green above, green below, oblong to narrowly oblong, 22 – 23.5 cm long, 3 – 3.5 cm wide, acute. Inflorescence arising from the base of pseudobulbs, erect or distally arching; peduncle yellowish-green, glabrous, 6 – 9.3 cm long, 4 – 5 mm in diameter, at the base covered by 5 to 6 tubular overlapping brown to dark brown, acute or acuminate bracts 0.6 – 2 cm long, above with two spaced bracts; rachis yellowish-green, glabrous, 8.5 – 10 cm long, ca. 5 mm in diameter, densely many-flowered; floral bract brown, triangular, ca. 5 mm long, ca. 2 mm wide, acuminate; pedicel with ovary, yellowish-green, terete, ca. 4 mm long, pedicel glabrous, ovary slightly thicker, with six prominent keels, sparsely papillose, with nipple-like projections. Flowers with tepals pink to light pinkish, marked with numerous violet spots; lip yellowish-pink with violet dots. Median sepal obovate to broadly obovate, concave, 4.5 – 5 mm long, 2.6 – 3 mm wide, acute or shortly mucronate, abaxial side sparsely papillose. Lateral sepals broadly elliptic-ovate, slightly concave, 6 – 6.5 mm long, ca. 3 mm wide, acuminate, ca 1 mm long, slightly back-curved, abaxial side sparely papillose. Petals 1 - veined, triangular to narrowly triangular, ca. 2 mm long, 1 mm wide, acute with filiform seta ca. 2 mm long, petals (excluding seta) as long as or slightly longer than the column. Lip narrowly triangular, fleshy, slightly downcurved, 4 – 4.2 mm long, 1.5 – 1.6 mm wide, margin down curved, surface glabrous, margin papillose ciliate, apex rounded, lip adnate to the apex of the column foot, with a small white appendage; base with triangular, falcate, auricles, ca. 0.5 mm long, apex acute pointing forward, margin slightly erose; lip base with 2 small calli; adaxial side with two prominent keels coming from base of auricles to near apex, lip at base forming canal with short small keel; abaxial side with longitudinal groove coming from the base to near apex. Column ca. 2 mm long (without stelidia); column foot forward directed, at apex upcurved, ca. 3 mm long, apex emarginate; stelidia, ca. 2 mm long, triangular-subulate, slightly downcurved, with entire margin; stigma obscurely rectangular to broadly obovate, ca. 1 mm long and wide, lower margin with swollen rectangular callus, ca. 1.5 mm long, 0.5 mm thick; anther cap yellow, conoid, ca. 1 mm long; pollinia 4 in 2 pairs, inner smaller than outer. Fruits not seen.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFFC6F36D095FBC08F69FB75.taxon	etymology	Etymology: — The species is named after Assoc. Prof. Dang Minh Quan (Can Tho University) in recognition of his immense knowledge and contributions to the teaching in plant taxonomy.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFFC6F36D095FBC08F69FB75.taxon	biology_ecology	Habitat and phenology: — Creeping epiphyte on large trees in humid and dry forests. Flowers in November.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFFC6F36D095FBC08F69FB75.taxon	distribution	Distribution: — The species is known from one location in Kon Tum Province, southern Vietnam.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFFC6F36D095FBC08F69FB75.taxon	discussion	Note: — The new species is similar to B. lilacinum in its light pinkish flowers and to B. morphologorum in having a callus below the stigma. The detailed morphological differences of mentioned species are presented in Table 1. Data for Bulbophyllum morphologorum are based on data reported by Kraenzlin (1908: 89), Stapf (1924 tab. 9033), and Seidenfaden (1979: 136); for B. lilacinum are based on data from Ridley (1896: 276), Ridley (1917 tab. 8723), and Seidenfaden (1979: 140).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF86F36D095FADC8E75F80E.taxon	materials_examined	Type: — THAILAND. Doi Sootep, West of Chiengmai, “ Siam. Eingeführt von Dr. Hosseus, blühte bei Baron Fuerstenberg in Hugenpoet 1908 ” (Hebarium unlocated).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF86F36D095FADC8E75F80E.taxon	biology_ecology	Habitat and phenology: — according to Stapf (1924) the species grows as an “ one of the numerous epiphytic orchids of the grassy jungle of the higher slopes of the mountain ”.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF86F36D095FADC8E75F80E.taxon	distribution	Distribution: — VIETNAM, Dong Nai and Ba Ria provinces. Myanmar (?), Thailand.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF86F36D095FADC8E75F80E.taxon	materials_examined	Studied specimens: — VIETNAM, Ba Ria Province, Dinh Moutain, Pierre 6579 (P 00348139, P 00348140). VIETNAM, Dong Nai Province, Bien Hoa, Chiao-xanh Moutain, Pierre 6571 (P 00448138).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF86F36D095FADC8E75F80E.taxon	discussion	Note: — B. morphologorum was recorded in Vietnam from Dinh Mountain, Ba Ria Province, by Seidenfaden (1992: 270), Averyanov (1994: 254), and Pham (2000: 850), based on two gatherings: Pierre 6579 (P 00348139, P 00348140) and Pierre 6571 (P 00448138). These specimens, collected by Pierre, were firstly identified as B. cupreum Lindley (1838: 95), but were re-identified as B. morphologorum by Seidenfaden in 1979. It seems, further collections are needed to confirm the presence of this species in Vietnam.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF86F38D095F8088804FD17.taxon	materials_examined	Type: — THAILAND. Salaeng Haeng River, Thung Salaeng Luang National Park, 1964, Seidenfaden, Smitinand, GT 5602 (C 652).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF86F38D095F8088804FD17.taxon	biology_ecology	Habitat and phenology: — Epiphyte in evergreen broad-leaved forests at elevation of 500 – 800 m a. s. l. Flowers during December to March.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF86F38D095F8088804FD17.taxon	distribution	Distribution: — VIETNAM, Dak Lak, Gia Lai, and Kon Tum provinces. China, Myanmar, Thailand, Laos, Cambodia.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF86F38D095F8088804FD17.taxon	discussion	Note: — The species is remarkable for its subulate side spreading stelidia.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF86F38D095F8088804FD17.taxon	materials_examined	Studied specimens: — VIETNAM, Dak Lak Province, 2008, N. T. Hiep et al., HLF 7178 (LE LE 01055482); Dak Lak Province, 2015, Averyanov, Maisak, AL 137 (LE LE 01055854); Kon Tum Province, 1995, Averyanov et al., VH 2410 (LE LE 01055858); Kon Tum Province, Dak Glei, 2019, Truong Ba Vuong, BV 457 (VNM); Kon Tum Province, 2022, TrƯƠng Bá VƯƠng, BV 1684 (VNM). LAOS, Houphan Province, Xon District, Nong Hua Pa Noi Village, 2015, N. T. Hiep et al. LA-VN 1241 a (LE LE 01055855!). CAMBODIA, Sihanoukville Province, Khan Prey Nup District, Sihanoukville Town, Kbal Chhay Waterfall, 2012, Maisak et al., 971 (LE LE 01055856). Photos of additional specimens can be found in: https: // en. herbariumle. ru /? t = occ & s = bulbophyllum % 20 orientale & f = % 5 Ball % 5 D.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF66F38D095FA058F7EF7B4.taxon	materials_examined	Type: — THAILAND, sine loc., Supachadiwong, GT 9679 (C).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF66F38D095FA058F7EF7B4.taxon	biology_ecology	Habitat and phenology: — Creeping epiphyte and lithophyte in evergreen, broad-leaved forests on rocky limestone at elevations of about 100 m a. s. l. Flowers in December.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF66F38D095FA058F7EF7B4.taxon	distribution	Distribution: — VIETNAM, Quang Ninh Province. Thailand.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF66F38D095FA058F7EF7B4.taxon	discussion	Note: — Bulbophyllum albidostylidium resembles B. dissitiflorum and B. putii in having lax, dark-brown, widely spaced flowers. It differs from these two species by the entire margins of the petals (vs. dentate or obscurely dentate in B. dissitiflorum and B. putii), the fleshy, white, clavate stelidia (vs. small triangular in B. dissitiflorum and flat, subulate in B. putii), and the auricles, which are elongate, falcate, with an oblique truncate apex (vs. truncate, dentate apex in B. putii and falcate, entire, acute apex in B. dissitiflorum). Some collections from Vietnam identified earlier (Averyanov, 2012) as B. putii in fact belong to B. albidostylidium.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF66F38D095FA058F7EF7B4.taxon	materials_examined	Studied specimens: — VIETNAM, Quang Ninh Province, Mong Cai Town, Luc Phu Mountain, 24.12.201 0, Chu Xuan Canh, CXC 21 (LE LE 01057659 https: // en. herbariumle. ru /? t = occ & id = 7837, photos LE 01087252 https: // en. herbariumle. ru /? t = occ & id = 18967).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF66F38D095FD7D8EBCFA3F.taxon	materials_examined	Type: — THAILAND, Doi Suthep, Seidenfaden, Smitinand GT 2785 (C 6102).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF66F38D095FD7D8EBCFA3F.taxon	biology_ecology	Habitat and phenology: — Epiphyte in evergreen broad-leaved primary and secondary forests. Flowers in December and January.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF66F38D095FD7D8EBCFA3F.taxon	distribution	Distribution: — VIETNAM, Dak Lak, Kon Tum, Lam Dong, and Tay Ninh provinces. India?, Laos, Thailand.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF66F38D095FD7D8EBCFA3F.taxon	discussion	Note: — Bulbophyllum dissitiflorum was firstly recorded for Vietnam by Averyanov in 2011. See note on B. albidostylidium. Chowlu et al. (2015) recorded B. dissitiflorum from India (Manipur). However, his description and illustrations indicate that, the material represents B. rufinum and its varieties (Chowlu et al. 2015: 173, 175, figures 2 and 3). The occurrence of B. dissitiflorum in India remains doubtful.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF66F38D095FD7D8EBCFA3F.taxon	materials_examined	Studied specimens: — VIETNAM, Lam Dong Province, Da Nhim, 2019, Truong Ba Vuong, Ngo Quang Dang, BV 463 (VNM); Lam Dong Province, Don Duong, 2020, Truong Ba Vuong, Ngo Quang Dang, BV 997 (VNM); Kon Tum Province, Dak Glei, 2020, Truong Ba Vuong, Ngo Quang Dang, BV 988 (VNM); Dak Lak Province, Yok Don National Park, 2008, Nguyen Tien Hiep et al., HLF 7178 (LE LE 01055484!, LE 01055482!, LE 01055460!); Tay Ninh Province, Lo Go Xa Mat National Park, 2008, Averyanov et al., HLF 7495 (LE LE 01122676!); Tay Ninh Province, Lo Go Xa Mat National Park, 2008 Tran Huy Thai et al., HLF 7495 (LE LE 01055459!); Tay Ninh Province, Lo Go Xa Mat National Park, 2008 Tran Huy Thai et al. HLF 7676 (LE LE 01055454!). LAOS, Borikhamxai Province, 2009, Bounphanmy et al., LA-VN 19 (LE LE 01055458!). Photos of additional specimens can be found in: https: // en. herbariumle. ru /? t = occ & s = bulbophyllum % 20 dissitiflorum & f = % 5 Ball % 5 D.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FA3C8E1BF801.taxon	materials_examined	Type: — THAILAND. Umphang road at km 23, Seidenfaden, GT 7810 (C).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FA3C8E1BF801.taxon	biology_ecology	Habitat and phenology: — Creeping epiphyte in dry lowland evergreen broad-leaved forest at elevation of about 650 ma. s. l. Flowers in December and January.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FA3C8E1BF801.taxon	distribution	Distribution: — VIETNAM, Ninh Thuan Province? Thailand.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FA3C8E1BF801.taxon	materials_examined	Studied specimens: — VIETNAM, Ninh Thuan Province, “ Annam: Ca Na, province Phan Rang ”, 1923, Poilane 9213 (photo, P PL 00810862).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FA3C8E1BF801.taxon	discussion	Note: — The record of this species in Vietnam (Seidenfaden 1992: 271, Averyanov 1994: 255, Pham 2000: 850) was based on one specimen of (Poilane 9213 P PL 00810862). According to Seidenfaden (1979: 125) its identification in uncertain (“ possibly Bulbophyllum macrocoleum Seidenf. ”).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FD148E5BFA54.taxon	materials_examined	Type: — Sine loc. “ … continental Indische … Art erstand Herr S. C. Hincks von Breckenborough … ”, sine coll., sine num. (W-R 2293).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FD148E5BFA54.taxon	biology_ecology	Habitat and phenology: — Creeping epiphyte in evergreen broad-leaved forests at elevation of 300 – 1500 m a. s. l. Flowers in November and December.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FD148E5BFA54.taxon	distribution	Distribution: — VIETNAM, Dak Lak, Gia Lai, Kon Tum, and Lam Dong provinces. Andaman Islands, NE India, China, Bangladesh, Myanmar, Thailand, Laos, Cambodia.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FD148E5BFA54.taxon	discussion	Note: — The inflorescence and flowers of this species shows some color variation, with the rachis being dark redpurple, green-purple, or entirely green, and the flowers either uniformly yellow or yellow with brownish stripes to dirty brown and dark chestnut-brown.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FD148E5BFA54.taxon	materials_examined	Studied specimens: — VIETNAM, sine loc., 1986, Averyanov et al., LX-VN s. n. (LE LE 01057815!, photos LE 01087268!); Ba Ria — Vung Tau Province, Con Dao Island, 1987, Averyanov, Kudryavtzeva, 943 (LE LE 01057818!); Lam Dong Province, 2018, Truong Ba Vuong, Nguyen Quoc Minh, BV 536 (VNM); Don Duong District, 2020, Truong Ba Vuong, BV 963 (VNM); Di Linh District, 2020, Truong Ba Vuong, Ngo Quang Dang, BV 976 (VNM); Lac Duong District, Dưng K’No Commune, 2020, Truong Ba Vuong, Ngo Quang Dang, BV 996 (VNM); Di Linh District, 2022, Truong Ba Vuong, Loc Bao Sang, BV 1637 (VNM). Additional specimen photos can be found: https: // en. herbariumle. ru /? t = occ & s = bulbophyllum % 20 rufinum & f = % 5 Ball % 5 D.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FF55883DFD2D.taxon	materials_examined	Type: — VIETNAM, Gia Lai Province: herbarium prepared from wild collected cultivated plant on 2020 by Truong Ba Vuong, Duong Minh Tam Thao Ngoc, Dang Van Son, Vu Thi Linh, BV 768 (holotype VNM 00024193!), originated from Gia Lai Province, K’Bang District, Kon Chu Rang Nature Reserve.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FF55883DFD2D.taxon	biology_ecology	Habitat and phenology: — Epiphyte on old pine trees (Pinus kesiya) in evergreen mixed forest. Flowers in August.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FF55883DFD2D.taxon	distribution	Distribution: — VIETNAM, Gia Lai Province. Species endemic for Central Highlands.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FF55883DFD2D.taxon	discussion	Note: — All specimens from Vietnam attributed earlier by Seidenfaden (1992: 270), Averyanov (1994: 254), Pham (2000: 850), and Averyanov, Averyanova (2000: 14)] to Bulbophyllum elassonotum Summerhayes (1935: t. 9408) were later reidentified and described as the new species, B. vulinhiae Vuong, Duong, V. S. Dang & Aver. in Duong et al. (2021: 2).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF46F3AD095FF55883DFD2D.taxon	materials_examined	Studied specimens: — VIETNAM, Gia Lai-Kontum Province, Chupa, Gia Lu, 1985, Averyanov, LV-VN 2463 (photo LE LE 01073530! https: // en. herbariumle. ru /? t = occ & id = 18039); Gia Lai, Mang Yang District, Mang Yang Forest, 2020, Truong Ba Vuong, Duong Minh Tam Thao Ngoc, BV 920 (VNM), BV 921 (VNM), BV 922 (VNM).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095F9D0885FF879.taxon	materials_examined	Type: — VIETNAM, Ba Ria, Tay Ninh, Regnier 308 (holotype P 00345407 photo!).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095F9D0885FF879.taxon	biology_ecology	Habitat and phenology: — The species is known only from the type specimens, without precise habitat data or flowering time.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095F9D0885FF879.taxon	distribution	Distribution: — VIETNAM (“ Ba Ria, Tay Ninh ”).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095F9D0885FF879.taxon	discussion	Note: — Bulbophyllum bariense Gagnepain (1930: 143) was found in “ Baria Tay-Ninh ” by Regnier (Regnier 308, P 00345407). According to authentic drawings presented on the single type specimen may be assume that the species is similar to B. gunnarii, but can be distinguished by its shorter inflorescence ca. 10 cm long (vs. ca. 15 cm long) and falcate triangular, upraised, acute auricles of lip (vs. lip auricles rounded). Additional materials collected from the “ locus classicus ” of B. bariense are needed to confirm the differences between the two species.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095F9D0885FF879.taxon	materials_examined	Studied specimen: — VIETNAM, “ Ba Ria, Tay Ninh ”, Regnier 308 (holotype P 00345407 photo!).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095FF54892BFC15.taxon	materials_examined	Type: — THAILAND. Sakon Nakhon Province: Phu Phan National Park, Kham Hom Waterfalls, Thaithong 1427 (holotype C).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095FF54892BFC15.taxon	biology_ecology	Habitat and phenology: — Creeping epiphyte in lowland evergreen broad-leaved forests. Flowers in November and December.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095FF54892BFC15.taxon	distribution	Distribution: — VIETNAM, Dak Lak and Lam Dong provinces. Thailand, Laos.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095FF54892BFC15.taxon	discussion	Note: — According to Tanaka et al. (2011: 162, figure 2 B), who kindly provided us with the color plate of that publication, the flowers, appearing yellow in color and with the outer structure, did not correspond to B. reclusum. Hence, the occurrence of this species in Myanmar cannot be confirmed and requires further collections to verify.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095FF54892BFC15.taxon	materials_examined	Studied specimens: — VIETNAM, Dak Lak Province: wild collected plant originated from Dak Lak Province, cultivated by Huynh Duc Thach in Dak Lak Province, Buon Ho Town, herbarium and photos made on 20 November 2023, L. Averyanov, Nguyen Van Canh, T. Maisak, AL 2721 (LE LE 01253781 https: // en. herbariumle. ru /? t = occ & id = 211980, photos LE LE 01124694 https: // en. herbariumle. ru /? t = occ & id = 208209); Lam Dong Province, sine loc., creeping epiphyte, 20 December 2021, Truong Ba Vuong, Ngo Quang Dang, BV 1495 (LE LE 01169332 https: // en. herbariumle. ru /? t = occ & id = 141206); Lam Dong Province, plant collected in Lam Dong Province, Bao Loc District in November 2022 by Loc Bao Sang, cultivated in garden of Loc Bao Sang in Lam Dong Province, Di Linh Town, herbarium and photos made on 2 December 2022, L. Averyanov, N. V. Canh, T. B. Vuong, T. Maisak, AL 1904 (LE LE 01170003 https: // en. herbariumle. ru /? t = occ & id = 161984, photos LE 01123719 https: // en. herbariumle. ru /? t = occ & id = 156627); Lam Dong Province, 2020, TrƯƠng Ba VƯƠng, Ngo Quang Dang, BV 972 (VNM); BV 973 (VNM).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095FC7C8980FA70.taxon	materials_examined	Type: — VIETNAM. Gia Lai — Kon Tum Province: Averyanov, LX-VN 2218 (holotype LE LE 01057924!, isotype LE LE 01057925!).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095FC7C8980FA70.taxon	biology_ecology	Habitat and phenology: — Creeping epiphyte in dry lowland broad-leaved evergreen or semideciduous forests and woodlands at elevations 300 – 600 m a. s. l. Flowers in November and December.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095FC7C8980FA70.taxon	distribution	Distribution: — VIETNAM, Dak Lak, Kon Tum, and Lam Dong provinces. Endemic to Central Highlands of Vietnam.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095FC7C8980FA70.taxon	discussion	Note: — Remarkable species with yellow to light yellowish-brown, sepals with five dark red stripes, inflorescence to 37 cm long, densely arranged flowers, and ciliate lip margin.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFF36F3DD095FC7C8980FA70.taxon	materials_examined	Studied specimens: — VIETNAM, Dak Lak Province, Chu Yang Sin, Averyanov, Maisak, AL 138 (paratype LE 01057923!); Kon Tum Province, Dak Glei, 2019, Truong Ba Vuong, BV 458 (VNM); Lam Dong Province, Da Teh, 2019, Truong Ba Vuong, Than Phu Dung, BV 444 (VNM); Lam Dong Province, Da Teh, 2020, Truong Ba Vuong, Than Phu Dung, BV 1051 (VNM); Bao Loc, 2022, Truong Ba Vuong, Averyanov Leonid, Nguyen Van Canh, Nguyen Quoc Bao, BV 1620 (VNM); Dak Lak Province, Lak, 2020, Truong Ba Vuong, BV 1023 (VNM). Additional specimen photos can be found: https: // en. herbariumle. ru /? t = occ & s = Bulbophyllum % 20 striatulum & f = % 5 Ball % 5 D.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFEE6F20D095FF5489D6FC4C.taxon	materials_examined	Type: — NEPAL, 1821, Wallich, N. 1990 (G 00165052 photo!).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFEE6F20D095FF5489D6FC4C.taxon	biology_ecology	Habitat and phenology: — Epiphyte in evergreen broad-leaved forests, commonly along streams. Flowers in October and November.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFEE6F20D095FF5489D6FC4C.taxon	distribution	Distribution: — VIETNAM, Dak Lak, Gia Lai, Ha Giiang, and Kon Tum provinces. Andaman Islands, Nepal, N India, Bangladesh, China, Myanmar, Thailand.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFEE6F20D095FF5489D6FC4C.taxon	discussion	Note: — Bulbophyllum careyanum can be misidentified with B. striatulum, however, B. careyanum has shorter inflorescence up to 14 cm long, lip auricle falcate, acute, margin of the lip entire (vs. inflorescence up to 37 cm long, lip auricles falcate, somewhat half-circular, blunt, margin and adaxial surface ciliate).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFEE6F20D095FF5489D6FC4C.taxon	materials_examined	Studied specimens: — VIETNAM, Gia Lai Province, Mang Den District, 1985, Averyanov et al., LX-VN 2294 (LE LE 01055256!); Gia Lai Province, K’Bang District, Kon Chu Rang, Truong Ba Vuong, Nguyen Van Canh, BV 927 (VNM); Dak Lak Province, Chu Yang Sin, 2015, Averyanov, Maisak, AL 99 (LE LE 01055253!); Kon Tum Province, Dak Glei District, 2022, Truong Ba Vuong, Nghiem Xuan Son, BV 1635 (VNM); Kon Tum Province, Dak Glei District, 2023, Truong Ba Vuong, Hoang Manh Dat, BV 1879 (VNM); Ha Giang Province, Quan Ba District, Dong Ha Commune, Truong Ba Vuong, Bui Van Huong, Vang Di Thao, BV 434 (LE LE 01066661!). Photos of additional specimens can be found in: https: // en. herbariumle. ru /? t = occ & s = bulbophyllum % 20 careyanum & f = % 5 Ball % 5 D.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFEE6F20D095FC348FB0FA70.taxon	materials_examined	Type: — VIETNAM, Kien Giang Province: Tho Chu Island, collected in 1987, flowering in 1990, Averyanov L., Kudriavtzeva E., 1094 (holotype HN, isotype LE 01055555!).	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFEE6F20D095FC348FB0FA70.taxon	biology_ecology	Habitat and phenology: — Primary and secondary open dry broad-leaved and coniferous lowland forests and woodlands. Flowers in October to January.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFEE6F20D095FC348FB0FA70.taxon	distribution	Distribution: — VIETNAM, Gia Lai, Kien Giang, and Kon Tum provinces. Species endemic to southern Vietnam.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
3C6787FAFFEE6F20D095FC348FB0FA70.taxon	materials_examined	Studied specimens: — VIETNAM, Gialai-Kon Tum Province, Konplong, Mang Den, 1985, flowering in 1986, Averyanov, LX-VN 2288 (LE LE 01055553!); Kien Giang Province, Tho Chu Island, 1987, Averyanov L. Kudryavtzeva E., Nguyen Tien Ban, 1094 (LE LE 01055552!, LE 01055556!); Kon Tum Province, 2020, Truong Ba Vuong, BV 958 (VNM). Photos of additional specimens can be found in: https: // en. herbariumle. ru /? t = occ & s = Bulbophyllum % 20 gunnarii & f = % 5 Ball % 5 D.	en	Huynh, Huu Duc, Averyanov, Leonid V., Maisak, Tatiana V., Nguyen, Quoc Bao, Nguyen, Van Canh, Dang, Van Son, Nguyen, Truong Giang, Truong, Quang Tam, Truong, Ba Vuong (2025): Bulbophyllum sect. Racemosae (Orchidaceae) in Vietnam with the description of the new species, B. minhquanii and the new national record, B. albidostylidium. Phytotaxa 736 (1): 12-32, DOI: 10.11646/phytotaxa.736.1.2, URL: https://doi.org/10.11646/phytotaxa.736.1.2
