Hyphodontia zhixiangii L.W. Zhou & Yu.Sh. Gafforov, 2017

Kan, Yu-He, Gafforov, Yusufjon, Li, Tong & Zhou, Li-Wei, 2017, Hyphodontia zhixiangii sp. nov. (Schizoporaceae, Basidiomycota) from Uzbekistan, Phytotaxa 299 (2), pp. 273-279 : 275-276

Hyphodontia zhixiangii L.W. Zhou & Yu.Sh. Gafforov , sp. nov. ( Figs. 2 , 3 )

MycoBank MB 819659

Etymology: — Zhixiangii (Lat.) : in memory of the corresponding author’s beloved father, Zhi-Xiang Zhou (AE Îṽ, December 1952 – November 2016), who was killed in a road traffic accident during the writing of the present paper.

Type:— UZBEKISTAN. Jizzakh Region, Zaamin District, Zaamin National Park, on the base of living Juniperus , 9 September 2016, LWZ 20160909-4 (holotype in IFP, isotype in TASM).

Description:— Basidiocarps annual, resupinate, inseparable from substrate, without odor or taste, soft corky when fresh, brittle when dry, up to 15 cm long, 5 cm wide and 1 mm thick. Hymenophore grandinioid to odontioid. Aculei cream to buff, subulate, 2–4 per mm, up to 0.8 mm long. Margin white, cottony, thinning, up to 1 mm wide. Subiculum white to cream, up to 0.2 mm thick. Hyphal structure monomitic; generative hyphae with clamp connections; tissue darkening but otherwise unchanged in KOH. Subiculum composed of generative hyphae, hyaline, slightly thick-walled, frequently branched, loosely interwoven, cyanophilous, 2–3.5 μm in diam. Aculei tramal generative hyphae hyaline, slightly thick-walled, moderately branched, subparallel along the aculei, cyanophilous, 2–4 μm in diam. Lagenocystidia frequent, hyaline, slightly thick- to thick-walled, 20–30 × 3–6 μm; subcapitate septocystidia frequent, hyaline, thin- to thick-walled, with two or three septa, 35–70 × 4–6 μm. Basidia cylindrical to suburniform, thin-walled, with four sterigmata and a clamp connection at base, 15–20 × 4–7 μm; basidioles similar in shape to basidia, but smaller. Basidiospores ellipsoid to broadly ellipsoid, hyaline, thin-walled, smooth, mostly with a guttule, inamyloid, non dextrinoid, acyanophilous, (4.3–)4.6–5.5(–6) × (3.2–)3.3–4(–4.3) μm, L = 5.04 μm, W = 3.75 μm, Q = 1.33–1.37 (n = 90/3).

Other specimens (paratypes) examined:— UZBEKISTAN. Jizzakh Region, Zaamin District, Zaamin National Park, on stump of Juniperus , 9 September 2016, LWZ 20160909-8 (IFP, a duplicate in TASM), LWZ 20160909-9 (IFP, a duplicate in TASM).

Figures

FIGURE 2. Basidiocarps of Hyphodontia zhixiangii (holotype). Bar = 1 cm. Photo by Li-Wei Zhou.

FIGURE 3. Microscopic structures of Hyphodontia zhixiangii (holotype). a: Basidiospores. b: Basidia and basidioles. c: Lagenocystidia. d: Subcapitate septocystidia. e: Hyphae from trama. f: Hyphae from subiculum. Bar = 10 μm. Drawings by Li-Wei Zhou.