Eucalyptoporia tasmanica

Eucalyptoporia tasmanica B.K. Cui & Shun Liu 2023, in Liu et al., Mycosphere 14(1): 1634 (2023).

Etymology: Tasmanica (Lat.): refers to the species collected from Tasmania in Australia.

Diagnosis: Basidiomata annual, resupinate to effused-reflexed, not easily separated from substrate, corky, without odor or taste when fresh, corky to fragile upon drying, up to 5 cm long, 10 cm wide, 5 mm thick at center. Pore surface white to pinkish buff when fresh, becoming buff yellow to clay-buff upon drying; pores angular to round, 4–6 per mm; dissepiments slightly thick, entire to lacerate. Subiculum buff, corky, thin, up to 2 mm thick. Tubes concolorous with pore surface, corky, up to 3 mm long.

Hyphal system dimitic; generative hyphae with clamp connections; skeletal hyphae IKI–, CB–; tissues unchanged in KOH.

Generative hyphae frequent, hyaline, thin- to slightly thick-walled, frequently branched, 3.3–5.8 μm in diam; skeletal hyphae dominant, hyaline, thick-walled with a narrow lumen to subsolid, rarely branched, interwoven, 3.2–6.3 μm in diam.

Generative hyphae abundant in trama, hyaline, thin-walled, frequently branched, 1.9–3.2 μm in diam; skeletal hyphae frequent, hyaline, thick-walled with a wide to narrow lumen, 2.8–3.4 μm in diam. Cystidia absent, but fusoid cystidioles occasionally present, hyaline, thin-walled, 13–26 × 3.2–4.8 μm. Basidia clavate, with four sterigmata and a basal clamp connection, 17.8–30 × 4.2–6.3 μm; basidioles dominant, in shape similar to basidia, but slightly smaller.

Basidiospores cylindrical to oblong-ellipsoid, hyaline, thin-walled, smooth, IKI–, CB–, (3.8–)4–5(–5.2) × (1.9–)2–2.8(–3) μm, L = 4.58 μm, W = 2.35 μm, Q = 1.66–2.13 (n = 50/1).

Index Fungorum Number: IF900937