Pholidota leveilleana Schlechter, 2040

Li, Lin, Qin, Min, Wang, Wan-Yao, Zeng, Song-Jun, Zhang, Guo-Qiang & Liu, Zhong-Jian, 2019, The taxonomic identities of Pholidota wenshanica and P. subcalceata (Orchidaceae, Coelogyninae), PhytoKeys 136, pp. 97-106 : 97

Pholidota leveilleana Schlechter Figs 1 , 2

Pholidota leveilleana Schlechter, Repert. Spec. Nov. Regni Veg. 12: 107. 1913. Type: - CHINA. Guizhou (Kouy-tcheou), Huishui County, Tian sheng qiao (Tien-sey-kao), at alt. 900m, 8 May 1910, J. Esquirol 2088 (holotype E!).

Emended description.

Lithophytic or occasionally epiphytic plants with short and stout rhizomes, up to 30 cm high. Pseudobulbs borne close together, ovoid or conical-ovoid, often longitudinally sulcate, 2.5-4.5 cm × 8-12 mm, ca. 3.5 cm in diam., basally usually enveloped by scarious sheaths. Leaf solitary, arising from pseudobulb apex, narrowly elliptic or narrowly elliptic-lanceolate, 15-25 × 2-3.5 cm, papery, plicate, leaf vernation prominent, base contracted into a distinct petiole, apex short acuminate, lamina dark green to bluish green; petiole 4.5-8 cm. Inflorescence arising from base of mature pseudobulbs, often pendulous, 13-18 cm or longer; peduncle 4.5-7 cm long; rachis weakly zig-zag, laxly 12-18-flowered; floral bracts deciduous, elliptic or broadly ovate, papyraceous, 7 × 9 mm. Flowers pinkish white or salmon-pink, ca. 5 mm in diam., lip white or greenish white, tinged with orangish yellow or carmine red blotches, anther and stigma red; pedicel and ovary 3-4 mm. Sepals broadly ovate-elliptic, 5-7 × 4-6 mm, 7-veined, acute; lateral sepals dorsally carinate. Petals ovate-elliptic, 4-5 × 2.5-3 mm, 3-5-veined, obtuse; lip broadly oblong in outline, 5-6 × 3 mm, contracted into epichile and hypochile at apical 2/3; hypochile shallowly cupular in center, margin spreading horizontally, with 3 thickened veins extending from base to above middle; epichile transversely oblong or elliptic, 4-5 mm wide, apex emarginate, slightly undulate margined. Column 3.5-4 mm, apex broadly winged; stelidia sharp, with conspicuous acute teeth along upper margin; anther broadly elliptic in outline, top truncate to retuse; pollinia 4 in 2 pairs, connected by caudicles to a sticky substance, pyriform, ca 0.5 by 0.4 mm; stigma suborbicular; rostellum semi-orbicular. Flowering in April and May. Capsule narrowly obovoid, ca. 2 cm × 5-6 mm; fruiting pedicel 2-3 mm. 1.2-1.5 cm in diam.

Distribution and habitat.

Pholidota leveilleana is endemic to N and W Guangxi (Luocheng, Du’an, Jingxi, Nandan, Huanjiang, Tian’e, Fengshan, Napo), S Guizhou (Huishui), China, where it grows as lithophyte in sparse forests and shaded rocks, with elevations ranging from 500 m to 900 m a.s.l.

Additional specimens examined.

China, Guangxi Zhuang Autonomous Region, Hechi City, Luocheng Molao Autonomous County, Xunle Miao Ethnic Township, 11 Mar. 2013, Luocheng County Exped. 451225130311036LY (GXMG, IBK); Luocheng Mulao Autonomous County, 23 Jun. 1939, W. Chen 84075 (PE). Guangxi Zhuang Autonomous Region, Hechi City, Huanjiang Maonan Autonomous County, Xunle Miao Ethnic Township, 26 Apr. 2013, Huanjiang County Exped. 451226130426003LY (GXMG, IBK); Huanjiang Maonan Autonomous County, Mulun Natural Reserve, 25 Apr. 2008, W.B. Xu & Y. Liu 08025 (IBK); Mulun Natural Reserve, 25°06'43"N, 108°00'13"E, 27 Dec. 2008, W.B. Xu, Y.Y. Liang, Y.S. Huang & X.X. Ye, Liuyan 0156 (KUN); Huanjiang Maonan Autonomous County, Mulun Town, NE Zhonglun, 10 Aug. 1994, Mulun Exped. M0117 (PE). Guangxi Zhuang Autonomous Region, Tian’e County, 5 May 1997, China-UK Expedition Team ASBK365 (IBK); Tian’e County, limestone Mt. at the junction of Lingdang and Liupai Town, 10 Aug. 1958, Z.T. Li 601198 (PE). Guangxi Zhuang Autonomous Region, Du’an Yao autonomous County, Shangfu Township, Y.K. Li P01539 (IBSC, PE). Guangxi Zhuang Autonomous Region, Fengshan County, Jinya Town, 24°38'4326.50"N, 106°45'00.96"E, 29 Mar. 2013, H.Z. Lv, L.H. Liu & H.F. Chen 451223130329080LY (GXMG). Guangxi Zhuang Autonomous Region, Nandan County, Lihu Town, 26 Jun 1937, C. Wang 40914 (IBSC, PE). Guangxi Zhuang Autonomous Region, Jingxi County, Sanhe Town, 15 Apr. 2012, Y.S. Huang Y1229 (IBK); Jingxi County, Renzhuang Town, 14 Sep. 2006, Y. Liu & W.B. Xu 0153 (IBK); Jingxi County, Longbang Town, Damo Village, 23 Apr. 2011, F.Y. Huang & Z.H. LV LHZJX0248 (GXMG). Guangxi Zhuang Autonomous Region, Napo County, Chengxiang Town, 12 Apr. 1998, H.N. Qin & al. 506 (IBSC, PE). Guangxi Zhuang Autonomous Region, Luchen (Luocheng?), 27 May 1928, anonymous 5405 (IBSC; PE); Guangxi Zhuang Autonomous Region, precise locality unknown, 25 Aug. 1935, S.P. Ko 55619 (PE). CHINA. Guizhou (Kouy-tchou), Dushan County, 13 Jul. 1959, Lipo Expe.1072 (PE).

Figures

Figure 1. The types and selected specimens of P. wenshanica (A-C), Pholidota leveilleana (D-F) and P. subcalceata (G-I) A holotype sheet of P. wenshanica B China, Guangxi, Longzhou, HK Kadoorie PT 714 (PE) C China, Yunnan, HK Kadoorie Team 2361 (PE) D holotype sheet of P. leveilleana E China, Guangxi, China-UK Expedition Team ASBK 365 (IBK) F China, Guangxi, Y. S. Huang Y 1229 (IBK) G Holotype sheet of P. subcalceata H isotype sheet of P. subcalceata I Vietnam, Kontum, L. V. Averyanov & al., VH 292 (P).

Figure 2. The morphology of Pholidota leveilleana (A, C, E-H) and P. wenshanica (B, D, I-L) A-B habit C-D inflorescences E, I flower, frontal view F, J column and lip, lateral view G, K lip, ventral view H, L column, front view. Scale bars: 5 mm (E, I), 3 mm (F-H, J-L).