Fomitiporella austroasiana Y.C. Dai, X.H. Ji & J. Vlasak

Ji, Xiao-Hong, Vlasak, Josef, Tian, Xue-Mei & Dai, Yu-Cheng, 2018, Three new species of Fomitiporella (Hymenochaetales, Basidiomycota) based on the evidence from morphology and DNA sequence data, MycoKeys 30, pp. 73-89 : 77-78

Fomitiporella austroasiana Y.C. Dai, X.H. Ji & J. Vlasak sp. nov. Figs 3, 4

Holotype.

CHINA. Hainan Province: Qiongzhong County, Limushan Forest Park, 15 Nov 2015, on fallen angiosperm trunk, Dai 16244 (BJFC).

Etymology. Austroasiana (Lat.): referring to the distribution of the species in South Asia.

Basidiomata perennial, resupinate, hard corky and without odor or taste when fresh, woody hard when dry, up to 12 cm long, 5 cm wide and 12 mm thick at center. Pore surface ash-gray to grayish brown when fresh, grayish brown to olivaceous, more or less shiny and uncracked on drying; margin yellowish-brown, less than 1 mm wide, thinning out; pores circular, 8-10 per mm; dissepiments thick, entire; tubes woody hard, concolorous with pores, each layer up to 2 mm deep, white mycelial strands present in old tubes. Subiculum very thin to almost lacking.

Hyphal structure.

Hyphal system dimitic; generative hyphae simple septate; skeletal hyphae dominant; tissue darkening but otherwise unchanged in KOH.

Tubes.

Generative hyphae frequent, hyaline to pale yellow, thin- to slightly thick-walled, occasionally branched, frequently simple septate 1.5-2.5 μm in diam; skeletal hyphae pale brown to brown, thick-walled to almost solid, aseptate, 2-3 μm in diam; setae absent; cystidioles ventricose with elongated apical portion, 7-12 × 3-4 µm; basidia barrel-shaped, with four sterigmata and a simple basal septum, 8-11 × 5-6 μm; basidioles similar to basidia in shape, but slightly smaller; small or big rhomboid crystals abundant.

Spores.

Basidiospores subglobose, yellowish-brown, thick-walled, IKI–, CB(+), (3.5 –)3.8–4(– 4.3) × 3-3.5 μm, L = 4 μm, W = 3.29 μm, Q = 1.2-1.21 (n = 60/2).

Additional specimens examined (paratypes).

CHINA. Hainan Province: Wuzhishan, Wuzhishan Nature Reserve, 14 Nov 2015, on fallen angiosperm trunk, Dai 16168 (BJFC). SINGAPORE. Bukit Timah Nature Reserve, 20 June 2017, Dai 17868; Dai 17871; Dai 17879 (BJFC).