Neoascotaiwania aquatica D.F. Bao, H.Y. Su, K.D. Hyde & Z.L. Luo, 2022

Yang, Lin, Bao, Dan-Feng, Luo, Zong-Long, Su, Xi-Jun & Su, Hong-Yan, 2022, Neoascotaiwania aquatica sp. nov. from a freshwater habitat in Yunnan Province, China, Phytotaxa 531 (2), pp. 120-128 : 124-125

Neoascotaiwania aquatica D.F. Bao, H.Y. Su, K.D. Hyde & Z.L. Luo , sp. nov. FIGURE. 2

Index Fungorum number: IF558802; Facesoffungi number: FoF 10415

Etymology: —referring to the aquatic habitat.

Holotype:— HKAS 115790

Saprobic on decaying wood submerged in a freshwater stream. Sexual morph: Undetermined. Asexual morph: Colonies scattered, glistening, black, spot on the substratum. Mycelium mostly immersed, consisting of hyaline to pale brown, septate, branched hyphae. Conidiophores 11–17.5 × 5.5–6.5 µm (x = 14.4 × 6.0 µm, n = 25), semimacronematous or macronematous, mononematous, solitary, simple, erect, cylindrical, short, subhyaline to pale brown, 1-septate, smooth-walled. Conidiogenous cells monoblastic, integrated, terminal, cylindrical, subhyaline to pale brown. Conidia 23–26 × 14.5–17.5 µm (x = 24.6 × 16 µm, n = 35), acrogenous, 2-septate, broadly fusiform to ellipsoidal, truncate at the base, guttulate, subhyaline when young, darkened at maturity, paler at the basal cell, smoothwalled, thick-walled.

Culture characteristics: —Colonies growing on PDA, reaching 25 mm diam. after 4 weeks at 25 °C, with hairy or cottony mycelium on the rough surface, gray in the center, dark brown at the edge; in reverse dark brown with entire margin.

Material examined:— CHINA, Yunnan Province, on decaying wood submerged in Nujiang River , July 2016, Z.L. Luo, S-866 ( HKAS 115790 , holotype); ex-type living culture, KUMCC 21–0214 .

Figures

FIGURE 2. Neoascotaiwania aquatica (HKAS 115790, holotype) a–c. Colonies on wood.d–k. Conidiophores with conidia.l–n. conidia. o germinating condium. p–q. Cultures on PDA from above and below. Scale bars: d–o = 20 µm.