taxonID	type	description	language	source
BBAA5E13348B51878619BBD3E357F368.taxon	description	Fig. 2	en	Ma, Xiao-Yan, Lu, Yong-Zhong, He, Lei, Song, Dan-Dan, Ma, Jian (2025): Two new species of Neohelicosporium (Tubeufiaceae, Tubeufiales) from freshwater and terrestrial habitats in China. MycoKeys 118: 1-17, DOI: 10.3897/mycokeys.118.151514
BBAA5E13348B51878619BBD3E357F368.taxon	etymology	Etymology. The epithet “ guizhouense ” refers to Guizhou Province, where the fungus was collected.	en	Ma, Xiao-Yan, Lu, Yong-Zhong, He, Lei, Song, Dan-Dan, Ma, Jian (2025): Two new species of Neohelicosporium (Tubeufiaceae, Tubeufiales) from freshwater and terrestrial habitats in China. MycoKeys 118: 1-17, DOI: 10.3897/mycokeys.118.151514
BBAA5E13348B51878619BBD3E357F368.taxon	description	Description. Saprobic on decaying wood in terrestrial habitats. Sexual morph Undetermined. Asexual morph Hyphomycetous, helicosporous. Colonies on natural substrate superficial, effuse, gregarious, white. Mycelium mostly immersed, partly superficial, composed of pale brown to brown, branched, septate, guttulate, smooth. Conidiophores 56.5 – 165 μm long, 4 – 6.5 μm wide (x ̄ = 118.5 × 5.5 μm, n = 20), macronematous, mononematous, procumbent, aggregated, cylindrical, tapering towards the tip, straight or slightly flexuous, branched, septate, smooth- and thick-walled, brown at the base and hyaline towards the apex. Conidiogenous cells 9 – 16.5 μm long, 3.5 – 6 μm wide (x ̄ = 12.5 × 4.5 μm, n = 30), holoblastic, mono- to poly-blastic, integrated, intercalary or terminal, hyaline, smooth-walled, cylindrical or subcylindrical, becoming truncate towards the apex after conidial secession with tiny tooth-like protrusions, mostly bearing one (rarely two) tiny conidiogenous loci. Conidia solitary, acropleurogenous, helicoid, tapering towards the ends, developing on tooth-like protrusions, 20.5 – 27.5 μm diam. and conidial filament 3.5 – 5 μm wide (x ̄ = 23.5 × 4 μm, n = 30), 78 – 109.5 μm long (x ̄ = 88 μm, n = 30), indistinctly multi-septate, slightly constricted at septa, tightly coiled up to 3 times, becoming loosely coiled or uncoiled in water, guttulate, hyaline, smooth-walled.	en	Ma, Xiao-Yan, Lu, Yong-Zhong, He, Lei, Song, Dan-Dan, Ma, Jian (2025): Two new species of Neohelicosporium (Tubeufiaceae, Tubeufiales) from freshwater and terrestrial habitats in China. MycoKeys 118: 1-17, DOI: 10.3897/mycokeys.118.151514
BBAA5E13348B51878619BBD3E357F368.taxon	description	Culture characteristics. Conidia germinating on PDA within 13 h and germ tubes arising from the terminal ends and the middle of the conidium. Colonies reached 26 mm diam. after 33 days of incubation at 25 ° C, irregular, with flat, brown to black mycelia on the surface, in reverse pale brown to black with undulate margin.	en	Ma, Xiao-Yan, Lu, Yong-Zhong, He, Lei, Song, Dan-Dan, Ma, Jian (2025): Two new species of Neohelicosporium (Tubeufiaceae, Tubeufiales) from freshwater and terrestrial habitats in China. MycoKeys 118: 1-17, DOI: 10.3897/mycokeys.118.151514
5A9891C37491537FAA99390117570EC5.taxon	description	Fig. 3	en	Ma, Xiao-Yan, Lu, Yong-Zhong, He, Lei, Song, Dan-Dan, Ma, Jian (2025): Two new species of Neohelicosporium (Tubeufiaceae, Tubeufiales) from freshwater and terrestrial habitats in China. MycoKeys 118: 1-17, DOI: 10.3897/mycokeys.118.151514
5A9891C37491537FAA99390117570EC5.taxon	etymology	Etymology. The epithet “ wuzhishanense ” refers to Wuzhishan City, Hainan Province, where the fungus was collected.	en	Ma, Xiao-Yan, Lu, Yong-Zhong, He, Lei, Song, Dan-Dan, Ma, Jian (2025): Two new species of Neohelicosporium (Tubeufiaceae, Tubeufiales) from freshwater and terrestrial habitats in China. MycoKeys 118: 1-17, DOI: 10.3897/mycokeys.118.151514
5A9891C37491537FAA99390117570EC5.taxon	description	Description. Saprobic on submerged decaying wood in freshwater habitats. Sexual morph Undetermined. Asexual morph Hyphomycetous, helicosporous. Colonies on natural substrate superficial, effuse, solitary, scattered, or gregarious, white to pale brown. Mycelium mostly superficial, partly immersed, composed of pale brown to brown, branched, septate, guttulate, smooth, with mass glistening conidia. Conidiophores 75.5 – 203 μm long, 5.5 – 6.5 μm wide (x ̄ = 134.5 × 6 μm, n = 25), macronematous, mononematous, erect, solitary, cylindrical, straight or slightly flexuous, occasionally branched, septate, smooth-walled, thick-walled, wider at the base and narrower towards the apex, and brown at the base, becoming hyaline to pale brown towards the apex. Conidiogenous cells 13 – 29 μm long, 3.5 – 5 μm wide (x ̄ = 19 × 4.5 μm, n = 25), holoblastic, mono- to poly-blastic, integrated, intercalary or terminal, determinate, hyaline to brown, smooth-walled, cylindrical, truncate at the apex after conidial secession, with tiny tooth-like and / or bladder-like protrusions (7 – 16 μm long, 3 – 6 μm wide (x ̄ = 10.5 × 4.5 μm, n = 15 )). Conidia solitary, acropleurogenous, helicoid, tapering toward the ends, developing on tooth-like or bladder-like protrusions, 20.5 – 28.5 μm diam. and conidial filament 4.5 – 6 μm wide (x ̄ = 25 × 5 μm, n = 30), 92.5 – 138 μm long (x ̄ = 118 μm, n = 30), indistinctly multi-septate, slightly constricted at septa, tightly coiled 2 ½ – 3 ½ times, not becoming loose in water, guttulate, hyaline, smooth-walled.	en	Ma, Xiao-Yan, Lu, Yong-Zhong, He, Lei, Song, Dan-Dan, Ma, Jian (2025): Two new species of Neohelicosporium (Tubeufiaceae, Tubeufiales) from freshwater and terrestrial habitats in China. MycoKeys 118: 1-17, DOI: 10.3897/mycokeys.118.151514
5A9891C37491537FAA99390117570EC5.taxon	description	Culture characteristics. Conidia germinating on PDA within 18 h and germ tubes arising from the middle of the conidium. Colonies reached 37 mm diam. after 41 days of incubation at 25 ° C, irregular, with raised, white to brown mycelia on the surface, in reverse brown to black-brown, with undulate margin.	en	Ma, Xiao-Yan, Lu, Yong-Zhong, He, Lei, Song, Dan-Dan, Ma, Jian (2025): Two new species of Neohelicosporium (Tubeufiaceae, Tubeufiales) from freshwater and terrestrial habitats in China. MycoKeys 118: 1-17, DOI: 10.3897/mycokeys.118.151514
