Search on : Taxa descriptions


 Add this item to the list   817471 Original description
Description type:Original description 
Description:Basidiomata few, scattered to occasionally clumped. Pleurotoid or crepidotoid, with stipe lacking, excentric or lateral (Figs. 1, 2, 3). Pileus 5–63 mm diameter, 3–33 mm anteriorly-posteriorly, 1–5 mm high; convex to broadly applanate, circular to fan-shaped when young, becoming semicircular, then reniform; white 4A1 (Kornerup & Wanscher); softly hairy, felty, downy-woolly to tomentose; not hygrophanous, not translucently striate; dry; margin inrolled. Lamellae adnexed but distant from top of stipe, radiating from attachment if stipe absent; close, L=25–60; ventricose; white 4A1 to cream 4A2 when young, becoming pink 5A2 then finally translucent tan 5B4–5 to 5C4; margin concolourous, entire; 2–3 series of lamellulae. Stipe absent, substipitate to short-stipitate, lateral or excentric; if present, bent, curving, length 3–5 mm, diameter 2–3 mm; white 4A1 to cream 4A2; finely tomentose. Basal rhizomorphs extensive, forming a subiculum. Smell and taste not recorded. Spore print pale pink fawn, pinkish tan, 6C4. Spores (Fig. 4) 8.0–10.5 × 6.5–8.0 µm, mean 8.26 × 6.95 µm; Q: 1.11–1.44 (1.56), mean Q 1.31 (n=40); 5–7 (8) angled in side view, isodiametric, mostly heterodiametric; inamyloid; hyaline; with one large guttule. Basidia (Fig. 5) 38–46 × 8–11 (–12) µm, mean 41.35 ×10.1 µm; clavate; 4-spored; clamp connections not seen. Cheilocystidia absent. Lamella edge fertile. Hymenophoral trama regular, of cylindrical hyphae 3–10 µm diameter. Pileipellis (Figs. 6, 7, 8) in centre a cutis of interwoven, entangled, cylindrical hyphae, with transition to a trichoderm towards margin; hyphal ends of trichoderm growing perpendicularly to pileipellis, terminal elements 10–25 (–37) × (5–) 7–12 (–15) µm, apices rounded; some hyphae in lower layers with encrustations; clamps absent. Pileitrama regular, similar to hymenophoral trama. Stipitipellis a cutis of irregular repent hyphae 3–10 µm diameter, with clusters of upright hyphae, terminal ends of hyphae measuring 30–40 (–55) × 4–10 (–14) µm. Clamp connections not found in any tissue. 
Taxon name: