Search on : Taxa descriptions


Description type:Original description 
Description:Pileus 50-100 mm diam., convex to planoconvex, first with incurved margin, later with rather irregular, wavy margin; surface smooth, dry, slightly velvety and pruinose, cream-coloured to pale yellowish orange. Stipe 20-40 x 10-15 mm, cylindric, robust, solid; surface similar to pileipellis. Lamellae broadly adnate, distant, with lamellulae of different lenghts, cream-coloured; edge entire, concolorous. Context firm, pale.

Spores subglobose to broadly ellipsoid, rarely ellipsoid, 7.5-8.5-8.6-9.8 x 6.2-7.3-7.6-8.6(8.7) µm (n = 40, Q = 1.03-1.13-1.18-1.39; ornamentation amyloid, but very low and weakly developed, composed of indistinct, very low warts, sometimes aligned or connected by narrow lines, not exceeding 0.2 µm; plage inamyloid. Basidia 50-70 x 8-12 µm, 4-spored, rarely 2-spored, slender, subcylindrical; sterigmata often long and sometimes swollen in the middle. Pleuromacrocystidia and pseudomacrocystidia very abundant and very similar. Pleuromacrocystidia slightly emergent, often originating deep in the hymenium, 75-110 x 5-9 µm, thin-walled, subcylindric, somewhat tapering near apex, often with very irregular apex, with bulges or moniliform; content opaque oil-like or needle-like. Pleuropseudocystidia slightly emergent, similar in shape to the pleuromacrocystidia, with irregular apex, often moniliform or with bulges and branching, up to 7(12) µm broad; content oil-like or needle like. Lamellae edge sterile; marginal cells subcylindric to somewhat irregular or slightly subclavate, 20-45 x 6-9 µm, thin-walled, hyaline. Pileipellis a trichopalisade, composed of chains of small (usually less than 15 µm diam.), rounded cells, with long, narrow cylindric elements on top; terminal elements 30-60 x 3-5 µm, regularly cylindric, usually oblique to periclinal, forming a dense layer of interwoven hyphae of 30-60 µm thick on top of the rounded cells. Stipitipellis similar. Clamp connections absent.
Taxon name: