Antrodia uzbekistanica YuanYuan, Yu. Sh. Gafforov & F. Wu, 2017

Yuan, Yuan, Gafforov, Yusufjon, Chen, Yuan-Yuan & Wu, Fang, 2017, A new species of Antrodia (Basidiomycota, Polyporales) from juniper forest of Uzbekistan, Phytotaxa 303 (1), pp. 47-55 : 51-53

Antrodia uzbekistanica YuanYuan, Yu. Sh. Gafforov & F. Wu , sp. nov. ( Figs. 2–3 )

MycoBank no.: MB 818662

Type. — UZBEKISTAN. Jizzakh Region: Zomin National Park, on rotten wood of Juniperus seravschanica , alt. 1800 m. 8 September 2016, Y. C. Dai 17104, (Holotype, BJFC 022509, isotype in TASM).

Etymology.— uzbekistanica (Lat.) : referring to the locality of the species in Uzbekistan.

Basidiocarp—Basidiocarps annual, resupinate, adnate, ca. 15–25 cm in longest dimension, 7–15 cm in widest dimension, 6 mm thick at centre; corky when fresh, hard corky upon drying. Pore surface white to 4 A 2/3 cream or 4 A 4 buff when fresh, 4 A 2/3 cream, 4 A 4 buff or 4/5 B 4 cinnamon buff upon drying; sterile margin white, narrow to rhizomorphic; pores round to angular, 1–2 per mm; dissepiments thin, slightly lacerate. Subiculum white to cream, corky, up to 3 mm. Tube layer concolorous with the pore surface; tubes hard corky, up to 4 mm long.

Hyphal structure. —Hyphal system dimitic; generative hyphae bearing clamp connections; generative hyphae abundant, skeletal hyphae abundant, IKI–, CB –; tissue unchanged in KOH.

Subiculum. —Generative hyphae frequent, hyaline, thin to slightly thick-walled, occasionally branched and frequently bearing clamp connections, 2–4 μm in diam; skeletal hyphae dominant, hyaline, thick-walled with a wide to narrow lumen, rarely branched, flexuous, some bearing fine crystals, interwoven, 3–4.5 μm in diam.

Tubes. —Generative hyphae frequent, hyaline, thin- to thick-walled, occasionally branched, frequently bearing clamp connections, loosely 2–3.5 μm in diam; skeletal hyphae dominant, hyaline, thick-walled with a wide to narrow lumen, rarely branched, flexuous, some bearing fine crystals, interwoven, 3–4.5 μm in diam. Cystidia and cystidioles absent. Basidia clavate, with four sterigmata and a basal clamp connection, 16–22 × 5–6.5 μm; basidioles similar to basidia, but slightly smaller.

Spores. —Basidiospores cylindrical, hyaline, thin-walled, smooth, IKI–, CB –, (6–)6.5–8(–8.2) × (2.5–)2.7–3(– 3.1) μm, L = 7.11 μm, W = 2.92 μm, Q = 2.43–2.45 (n=60/2). Chlamydospores present, broadly ellipsoid to subglobose or globose, distinctly thick-walled, hyaline to pale yellowish, IKI–, CB +, 7.3–8 × 6–7.5 μm.

Additional specimen examined (paratype). — Uzbekistan, Jizzakh Region, Zomin National Park, on rotten wood of Juniperus seravschanica , alt. 1800 m, 8 September 2016, Y. C. Dai 17105 ( BJFC 022510).

Figures

FIGURE 2. Basidiocarps of Antrodia uzbekistanica (BJFC 022509). Scale Bar: 10 mm.

FIGURE 3. Microscopic structures of Antrodia uzbekistanica (drawn from the holotype). a: Basidiospores; b: Chlamydospores; c: Basidia and basidioles; d: Hyphae from trama; e: Hyphae from subiculum.