Trechispora fimbriata 2021

Trechispora fimbriata C.L. Zhao, sp. nov.2021

MycoBank no: MB 838613

Holotype: China, Yunnan Province, Puer, Jingdong County, Wuliangshan National Nature Reserve, on the angiosperm trunk, October 5, 2017, CLZhao 4154 (SWFC).

Morphological description

Sexual morph: Undetermined

Asexual morph: 

Basidiomata

Annual, adnate, without odor or taste when fresh, becoming fragile upon drying, up to10cmlongand3cmwide,100–200μm thick. Hymenial surface hydnoid, with aculei, cylindrical, blunt, 0.4–0.7 mm long, white to pink when fresh, turn to pink to buff upon drying. Margin white to cream, thinning out, fimbriate.

Hyphal system 

Monomitic, generative hyphae with clamp connections, hyaline, thick-walled, up to 0.6μm, branched, 2–4μm indiameter, IKI-, CB-;hyphae unchanged in KOH.

Hymenium 

Cystidia and cystidioles absent; basidia shortly cylindrical with median constriction, with 4–6 sterigmata and a basal clamp connection, 7–11.5×3.5–5μm, basidioles dominant, in shape similar to basidia, but slightly smaller.

Basidiospores 

Ellipsoid, hyaline, thick-walled, ornamented, sparse aculei, sharp, IKI-, CB-, (2.5 )3–3.6( 3.8) 2.4–3.2μm, L = 3.25μm, W=2.63μm,Q=1.17–1.38(n=90/3).

Culture characteristics:

Habitat:

Distribution: China

GenBank Accession: ITS MW544023; nLSU MW520173

ITS MW544024; nLSU MW520174

ITS MW544025; nLSU MW520175

Notes:

Reference: [1] Zhao, W. , &  Zhao, C. L. . (2021). The phylogenetic relationship revealed three new wood-inhabiting fungal species from genus trechispora. Frontiers in Microbiology, 12, 650195.

Basidiomata of Trechispora fimbriata (holotype). Bars: (A) 5 mm; (B) 1 mm.

Microscopic structures of Trechispora fimbriata (drawn from the holotype). (A) Basidiospores. (B) Basidia and basidioles. (C) Section of hymenium. Bars: (A) 5μm;(B,C) 10μm.