Search on : Taxa descriptions


Page number:940 
Remarks (internal):Entoloma kerocarpus has some resemblance with E. clandestinum with its dark colours and more or less distant brown lamellae, but the tough consistency of the context is rather different. Microscopically E. kerocarpus is distinct with its abundant cheilocystidia. Genevieve Gates has collected in Tasmania a very similar fungus, but the conspecificity must be proved. Entoloma atroenigmaticum, another dark brown mycenoid species, collected in Italy, differs not only by the fairly brittle context, but lacks cheilocystidia and has a completely different trama structure, indicative for sect. Pseudonolanea in subgenus Entoloma. 
Description type:Non-original description 
Description:Entoloma kerocarpus Hauskn. & Noordel. (fig. 323)
Pileus 11-25 mm broad, when young conico-convex, expanding to hemispherical-convex with flattened centre, hygrophanous, translucently striate at margin only, very dark brown to almost black (K&W 7-8F4, 8F4, 8F3-4, sometimes even darker), rugulose, when old breaking up in irregular patches, slightly zonate. Lamellae adnate-emarginate, moderately distant, narrow, brown already when young, then with pink tinge, with more or less entire, concolourous edge. Stipe 35-45 x 2.5-5 mm, cylindrical or compressed with longitudinal groove, brown at apex, slightly paler than pileus, downwards dark brown, pruinose-flocculose at apex, downwards smooth, polished. Context brown, rather rigid and tough (reminiscent of a Marasmius species). Smell spontaneously inconspicuous, but spermatic when bruised. Taste mild.
Spores 8.5-11.5 x 7.0-8.5 µm, Q = 1.15-1.25-1.35, irregularly 5-6-7-angled. Basidia 19-36 (-52) x 10-16 µm, 4-spored, clamped. Lamella edge heterogeneous. Cheilocystidia 16-50 x 4.0-9.0 µm, clavate, lageniform, sometimes capitate, septate, rather abundant. Pileipellis a cutis of 1.5-3.5 µm wide hyphae, subpellis composed of inflated elements, up to 15 µm wide. Pigment brown, coarsely incrusting, particularly in subpellis. Pileitrama composed of fusiform elements, 60-150 (-200) x 3.0-16 µm, clamps abundant.
Habitat and distribution: terrestrial among mosses and grass in a dry grassland at verge of a Quercus forest. So far only known from the type locality in Austria.
Taxon name: