Gloioxanthomyces nitidus (Berk. & M.A. Curtis) Lodge, Vizzini, Ercole & Boertm., Fungal Diversity 64: 50 (2014)

Wang, Chao-Qun, Zhang, Ming, Li, Tai-Hui, Liang, Xi-Shen & Shen, Ya-Heng, 2018, Additions to tribe Chromosereae (Basidiomycota, Hygrophoraceae) from China, including Sinohygrocybe gen. nov. and a first report of Gloioxanthomycesnitidus, MycoKeys 38, pp. 59-76 : 59

Gloioxanthomyces nitidus (Berk. & M.A. Curtis) Lodge, Vizzini, Ercole & Boertm., Fungal Diversity 64: 50 (2014) Figs 5, 6

= Hygrophorus nitidus Berk. & M.A. Curtis, Ann. Mag. nat. Hist., Ser. 2 12: 424 (1853).

Description.

Pileus 1.5-3.5 cm wide, convex to nearly plane with a slightly depressed disc, strongly glutinous, yellow, light orange yellow to apricot yellow, even whitish-yellow when mature, clearly striate at margin; pileus margin usually slightly undulating, slightly incurved when young, expanded to flat or partially uplifted when mature. Context thin, yellow to nearly concolorous with pileus, hygrophanous and translucent. Lamellae arcuate-decurrent, narrow at both ends, bright yellow or slightly orange yellow, waxy and fragile, subdistant, usually having 1-3 unequal lamellulae between two lamellae; lamellar edge even, usually gelatinised and sometimes translucent. Stipe 2.5-6 × 0.2-0.5 cm, cylindrical, hollow, yellow to slightly greenish-yellow, smooth, sticky or glutinous with a layer of viscid and translucent material when wet, nearly equal mostly but usually tapering at base.

Basidiospores 7-9(11) × 5-6.5(7.5) μm, Q=1.25-1.7, Qm=1.48, ellipsoid, not constricted, smooth, hyaline, thin-walled. Basidia 29-39 × 7.5-10 μm, clavate, 4-spored; sterigmata up to 5 μm. Lamellar trama subregular, with hyphal elements 10-20 μm wide. Pileipellis an ixotrichoderm. Clamp connections present.

Habitat and known distribution.

Solitary or scattered, on moist ground in a mixed forest with mosses in North-eastern China, so far known in North America and East Asia.

Material examined.

CHINA. Jilin Province, Antu County, Changbaishan Mountains, 20 August 2012, Ming Zhang, Jiang Xu, Chao-Qun Wang (GDGM41710, GDGM42150 and GDGM42151).