taxonID	type	description	language	source
03EE8788FFDEFF8DCCE8EA4993BFFDFA.taxon	description	Mycobank: MB 856243	en	Mendes-Freire, Richard B., Vilhena, Maria Do Perpétuo S. P., Da Silva Soares, Adriene M. (2025): Fulvifomes paraensis sp. nov. (Hymenochaetaceae, Basidiomycota), a new species from the floodplain forests of the Brazilian Amazon. Phytotaxa 720 (1): 19-34, DOI: 10.11646/phytotaxa.720.1.2, URL: https://doi.org/10.11646/phytotaxa.720.1.2
03EE8788FFDEFF8DCCE8EA4993BFFDFA.taxon	diagnosis	Diagnosis: — Fulvifomes paraensis is characterized by having perennial basidiomata; pilei broadly attached to dimidiate, imbricate; hyphal system monomitic in the context, and subdimitic to dimitic in the trama; basidiospores broadly ellipsoid to subglobose, golden yellow to light brown in KOH and yellow in water, averaging 5.77 L × 4.63 W μm.	en	Mendes-Freire, Richard B., Vilhena, Maria Do Perpétuo S. P., Da Silva Soares, Adriene M. (2025): Fulvifomes paraensis sp. nov. (Hymenochaetaceae, Basidiomycota), a new species from the floodplain forests of the Brazilian Amazon. Phytotaxa 720 (1): 19-34, DOI: 10.11646/phytotaxa.720.1.2, URL: https://doi.org/10.11646/phytotaxa.720.1.2
03EE8788FFDEFF8DCCE8EA4993BFFDFA.taxon	etymology	Etymology: — Referring to the state of Pará (Brazil), where the new species was found.	en	Mendes-Freire, Richard B., Vilhena, Maria Do Perpétuo S. P., Da Silva Soares, Adriene M. (2025): Fulvifomes paraensis sp. nov. (Hymenochaetaceae, Basidiomycota), a new species from the floodplain forests of the Brazilian Amazon. Phytotaxa 720 (1): 19-34, DOI: 10.11646/phytotaxa.720.1.2, URL: https://doi.org/10.11646/phytotaxa.720.1.2
03EE8788FFDEFF8DCCE8EA4993BFFDFA.taxon	materials_examined	Holotype: — BRAZIL. Pará: Mocajuba, floodplain forests, Conceição island, 2 ° 32 ′ 31.32 ″ S, 49 ° 31 ′ 29.05 ″ W, on decaying tree of Mora paraensis (Ducke 1915: 21) Ducke (1925: 45), November 2023, coll. A. M. S. Soares (AS 3499) (MG 249953!). GenBank accession numbers: PQ 602659 (ITS), PQ 602667 (LSU).	en	Mendes-Freire, Richard B., Vilhena, Maria Do Perpétuo S. P., Da Silva Soares, Adriene M. (2025): Fulvifomes paraensis sp. nov. (Hymenochaetaceae, Basidiomycota), a new species from the floodplain forests of the Brazilian Amazon. Phytotaxa 720 (1): 19-34, DOI: 10.11646/phytotaxa.720.1.2, URL: https://doi.org/10.11646/phytotaxa.720.1.2
03EE8788FFDEFF8DCCE8EA4993BFFDFA.taxon	description	Description: — Basidiomata perennial, pileate, without distinctive odor or taste and woody hard when dry. Pilei broadly attached to dimidate, imbricate, semicircular, projecting up to 13.9 cm long and 9.6 wide and 0.8 – 5.5 cm thick at base. Pileal surface yellow (3 B 8) to light brown (6 D 7) in juvenile specimens and brownish grey (4 F 2) to grey (6 F 1) in old specimens; azoned to concentrically zoned, glabrous; crusted, concentrically sulcate; pileal margin brown to dark gray, wavy. Pore surface yellowish brown (5 E 8), pores circular, 7 – 9 per mm, almost invisible and obstruct in old specimens, dissepiments thin and entire. Context light yellow (4 A 5), fibrous-corky and woody hard in old specimens, 0.4 – 3 cm thick, with a black line under the tomentum. Tubes yellowish brown (5 D 8), woody hard, up to 6 mm thick, tube layers indistinctly stratified. In KOH, the context and tubes become dark brown. Hyphal system monomitic in the context and dimitic to subdimitic in the trama of the tubes. Contextual generative hyphae thin- to thick-walled with simple septate, without clamps-connections, occasionally branched, (2.8 –) 4 – 5.5 (– 6) μm diam; light yellow in water, yellow to light brown in KOH. Tramal generative hyphae light yellow in KOH, thin- to thick-walled with simple septate, without clamps-connections, 3 – 4 μm diam; tramal skeletal hyphae dominant, brown in KOH, thick-walled 5.5 – 6 μm diam, with a narrow lumen, unbranched, aseptate to occasionally septate, not well-differentiated from generative hyphae, setae absent, cystidia and cystidioles absent. Basidia barrel-shaped, 9 – 10 × 6 – 8 μm, with four sterigmata up to 3 μm in length. Basidiospores broadly ellipsoid to subglobose, thick-walled, golden yellow to light brown in KOH and yellow in water, (4.1 –) 5 – 7 × 3 – 5 (– 5.3) μm, (L avg. = 5.77 μm, W avg. = 4.63 μm) Q = 1.24 (n = 30), IKI –, CB –.	en	Mendes-Freire, Richard B., Vilhena, Maria Do Perpétuo S. P., Da Silva Soares, Adriene M. (2025): Fulvifomes paraensis sp. nov. (Hymenochaetaceae, Basidiomycota), a new species from the floodplain forests of the Brazilian Amazon. Phytotaxa 720 (1): 19-34, DOI: 10.11646/phytotaxa.720.1.2, URL: https://doi.org/10.11646/phytotaxa.720.1.2
03EE8788FFDEFF8DCCE8EA4993BFFDFA.taxon	distribution	Habitat and distribution: — Fulvifomes paraensis is found on decaying trees of Mora paraensis (Fabaceae). The species is only known to occur on floodplain forest islands in the Brazilian Amazon (Fig. 2).	en	Mendes-Freire, Richard B., Vilhena, Maria Do Perpétuo S. P., Da Silva Soares, Adriene M. (2025): Fulvifomes paraensis sp. nov. (Hymenochaetaceae, Basidiomycota), a new species from the floodplain forests of the Brazilian Amazon. Phytotaxa 720 (1): 19-34, DOI: 10.11646/phytotaxa.720.1.2, URL: https://doi.org/10.11646/phytotaxa.720.1.2
03EE8788FFDEFF8DCCE8EA4993BFFDFA.taxon	materials_examined	Additional specimens examined (paratypes): — BRAZIL. Pará: Mocajuba, Conceição island, 2 ° 32 ′ 31.32 ″ S, 49 ° 31 ′ 29.05 ″ W, on trunk of decaying tree of Mora paraensis, June 2023, coll. V. P. Farias (VF 174) (MG 249954!); VF 181 (MG 249955!).	en	Mendes-Freire, Richard B., Vilhena, Maria Do Perpétuo S. P., Da Silva Soares, Adriene M. (2025): Fulvifomes paraensis sp. nov. (Hymenochaetaceae, Basidiomycota), a new species from the floodplain forests of the Brazilian Amazon. Phytotaxa 720 (1): 19-34, DOI: 10.11646/phytotaxa.720.1.2, URL: https://doi.org/10.11646/phytotaxa.720.1.2
03EE8788FFDEFF8DCCE8EA4993BFFDFA.taxon	discussion	Notes: Morphologically, Fulvifomes paraensis is similar to F. grenadensis (Murrill 1908: 107) Murrill (1915: 83) as both species share perennial basidiomata, yellowish context and broadly ellipsoid to subglobose basidiospores (Ryvarden 2004). However, F. paraensis can be distinguished from F. grenadensis by several features: the basidiomata of F. grenadensis are solitary, while in F. paraensis they are imbricate, pores are 7 – 9 per mm compared to 4 – 7 pores per mm in F. grenadensis (Table 2). Additionally, F. paraensis has monomitic context hyphae, whereas F. grenadensis is dimitic. Both F. paraensis and F. squamosus Salvador-Mont. & Drechsler-Santos (2018: 456) share broadly attached basidiomata and a yellow context. However, F. squamosus has a pubescent pilear surface that becomes glabrous, and a squamose texture. Although the shape and size of the basidiospores in both species are similar, F. squamosus has flattened basidiospores on the ventral side (Table 2). This species is predominantly parasitic on Acacia macracantha Humb. & Bonpl. ex Willd. (1806: 1080) in the seasonally dry tropical forests of northern Peru (Salvador-Montoya et al. 2018). Fulvifomes paraensis is similar to F. nilgheriensis (Montagne 1842: 22) Bondartseva & S. Herrera (1992), both species sharing pileal surface glabrous and 7 – 9 pores per mm. Nevertheless, F. paraensis has pileal surface crusted (vs. uncrusted in F. nilgheriensis) and monomitic context hyphae (vs. dimitic in F. nilgheriensis) (Table 2). The new species is also similar to F. waimiriatroariensis V. R. T. de Oliveira & Gibertoni (2022: 8), as they both have perennial and broadly attached basidiomata, as well as monomitic context hyphae. However, F. waimiriatroariensis can be distinguished by its solitary basidiomata, velutinate pileal surface and smaller basidiospores compared to F. paraensis (Table 2) (Oliveira et al. 2022). Furthermore, F. waimiriatroariensis is found in the upland forests of the Brazilian Amazon, where it grows on living trees (Oliveira et al. 2022).	en	Mendes-Freire, Richard B., Vilhena, Maria Do Perpétuo S. P., Da Silva Soares, Adriene M. (2025): Fulvifomes paraensis sp. nov. (Hymenochaetaceae, Basidiomycota), a new species from the floodplain forests of the Brazilian Amazon. Phytotaxa 720 (1): 19-34, DOI: 10.11646/phytotaxa.720.1.2, URL: https://doi.org/10.11646/phytotaxa.720.1.2
03EE8788FFD2FF8DCCE8E8F393A3F8E4.taxon	description	Figs. 4, 5 A – D, I.	en	Mendes-Freire, Richard B., Vilhena, Maria Do Perpétuo S. P., Da Silva Soares, Adriene M. (2025): Fulvifomes paraensis sp. nov. (Hymenochaetaceae, Basidiomycota), a new species from the floodplain forests of the Brazilian Amazon. Phytotaxa 720 (1): 19-34, DOI: 10.11646/phytotaxa.720.1.2, URL: https://doi.org/10.11646/phytotaxa.720.1.2
03EE8788FFD2FF8DCCE8E8F393A3F8E4.taxon	description	Description: — Larsen et al. (1985).	en	Mendes-Freire, Richard B., Vilhena, Maria Do Perpétuo S. P., Da Silva Soares, Adriene M. (2025): Fulvifomes paraensis sp. nov. (Hymenochaetaceae, Basidiomycota), a new species from the floodplain forests of the Brazilian Amazon. Phytotaxa 720 (1): 19-34, DOI: 10.11646/phytotaxa.720.1.2, URL: https://doi.org/10.11646/phytotaxa.720.1.2
03EE8788FFD2FF8DCCE8E8F393A3F8E4.taxon	distribution	Habitat and distribution: — Brazil and USA (Larsen et al. 1985, Jayawardena et al. 2019, Oliveira et al. 2022). This is the first report of Fulvifomes kawakamii in floodplain forests (Fig. 2).	en	Mendes-Freire, Richard B., Vilhena, Maria Do Perpétuo S. P., Da Silva Soares, Adriene M. (2025): Fulvifomes paraensis sp. nov. (Hymenochaetaceae, Basidiomycota), a new species from the floodplain forests of the Brazilian Amazon. Phytotaxa 720 (1): 19-34, DOI: 10.11646/phytotaxa.720.1.2, URL: https://doi.org/10.11646/phytotaxa.720.1.2
03EE8788FFD2FF8DCCE8E8F393A3F8E4.taxon	materials_examined	Specimens examined: — BRAZIL. Pará: Mocajuba, floodplain forests, Santaninha Island, 2 ° 31 ′ 13 ″ S, 49 ° 31 ′ 52 ″ W, on trunk of an undetermined decaying tree, 26 November 2022, coll. V. P. Farias (VF 51) (MG 249956), 21 June 2023, coll. V. P. Farias (VF 130) (MG 249957) and VF 148 (MG 249958); Tauaré Island, 2 ° 35 ′ 56.3 ″ S, 49 ° 30 ′ 46.7 ″ W, on decayed wood, 22 June 2023, coll. V. P. Farias (VF 208) (MG 249959).	en	Mendes-Freire, Richard B., Vilhena, Maria Do Perpétuo S. P., Da Silva Soares, Adriene M. (2025): Fulvifomes paraensis sp. nov. (Hymenochaetaceae, Basidiomycota), a new species from the floodplain forests of the Brazilian Amazon. Phytotaxa 720 (1): 19-34, DOI: 10.11646/phytotaxa.720.1.2, URL: https://doi.org/10.11646/phytotaxa.720.1.2
