Search on : Taxa descriptions


Page number:183 
Remarks (internal):Entoloma bipelle is very close to E. borgenii (see below). Both taxa differ from related species, like E. atrosericeum, in particular by the presence of two types of pigments in the pileipellis.
Description type:Non-original description 
Description:Entoloma bipelle Noordel. & Borgen (fig. 83)
Entoloma bipelle Noordel. & Borgen, Persoonia 12: 282. 1984.
Bibl.: Noordeloos in Persoonia 12: 282-283, fig. 12. 1984; Noordeloos & Gulden in Can. J. Bot. 67-: 1732. 1989.
Holotypus: T. Borgen 83.6, 25 Aug. 1983, Pamiut, Groenlandia (L).
Pileus 25-40 mm broad, conical at first then expanding to convex usually with small umbo and straight margin, weakly hygrophanous, when moist dark brown to blackish brown, not distinctly translucently striate or shortly so at margin only, slightly pallescent on drying, smooth, glabrous. Lamellae, L = 30-55, l = 3-5, adnate or emarginate, segmentiform to subventricose, grey then brownish pink with almost entire, concolorous edge. Stipe 35-60 x 4-8 mm, cylindrical or slightly broadened at base, pale brown, densely silvery striate lengthwise, apex pruinose, fistulose. Context concolorous with surface in cortex, pallid in inner parts. Smell and taste farinaceous.
Spores 7.0-10.5(-11.0) x 6.0-9.0(-10.0) µm, Q= 1.1-1.3, subisodiametrical, rounded 5-7­angled in side-view. Basidia 4-spored, clamped. Lamella edge fertile. Cystidia absent. Pileipellis a cutis of narrow, cylindrical hyphae, 2-9 um wide, subpellis well-developed, made up of inflated elements, up to 18 µm wide. Pigment encrusting in pileipllis and upper pileitrama, in addition also intracellular in subpellis. Clamps abundant in all tissues.
Habitat: In alpine snow-bed vegetation and dwarf-shrub heaths; summer-autumn. Distribution: So far only recorded from alpine habitats in Norway and arctic regions (Spitzbergen; Greenland), but possibly also in the alps of central Europe.

Taxon name: