Search on : Taxa descriptions

 


   
Literature:
 
Page number:1002 
Remarks (internal):Entoloma pluteidermum is classified in sect. Calliderma of subgenus Inocephalus on account of the structure of the pileipellis. It is distinct because of the brown-pigmented lamella-edge and spore-size. Entoloma phlebodermum has a similar Pluteus-like habit, but distinctly smaller spores and a fertile lamella edge. Entoloma henrici has two-spored basidia, a white stipe, and much smaller elements of the pileipellis. 
Description type:Original description 
Description:Entoloma pluteidermum Arnolds & Noordel., sp. nov. (fig. 339)
Pileus 24 mm broad, plano-convex with flattened centre, not hygrophanous, not translucently striate, very dark brown, slightly paler towards margin, craqued around centre, forming small dark brown dots on paler ochraceous background, entirely velvety (giving the impression of a cellular pellis, like in Pluteus or Dermoloma species). Lamellae, L = 30, l = 3, rather crowded, adnexed, ventricose, up to 3.5 mm broad, flesh-coloured pink with weak brown tinge, with entire, brown-coloured edge. Stipe 35 x 5 mm, cylindrical, fistulose, greyish brown, pruinose at apex, downwards minutely striate. Context whitish. Smell and taste indistinct.
Spores (7.5-) 8.0-12 x 6.5-9.5 µm, average 10.0 x 8.0 µm, Q = 1.25-1.35, Qav = 1.3, heterodiametrical, 5-7 (-9) angled with pronounced angles. Basidia 22-40 x 7-12 µm, 4-spored, clampless. Lamella edge sterile. Cheilocystidia 18-50 x 7.0-15 µm, with brown intracellular, diffuse and granular pigment. Hymenophoral trama regular, made up of short elements, 29-140 x 3-14 µm, with hyaline walls, often with brown, intracellular pigment. Pileipellis a hymeniderm of two layers of clavate or pedicellate elements, 20-134 x 13-40 µm. Pigment brown, intracellular, diffuse or in clots. Clamp-connections absent.
Habitat and distribution: in rather poor, grassy vegetation in a roadside on dry, calcareous loam. So far only known from the type locality in Germany.
 
Taxon name: