Search on : Taxa descriptions


Page number:112 
Remarks (internal):Entoloma strigosissimum is unique among all Entoloma species found in Europe because of the red, setiform hairs on pileus and stipe. It is rare in the Netherlands, but in some of the forest plantations in the new polders (E. Flevoland) it may occur in thousands of specimens. 
Description type:Non-original description 
Description:Entoloma strigosissimum (Rea) Noordel. in Persoonia 10: 211. 1979. - Fig. 81.
Nolanea strigosissima Rea in Trans. Br. mycol. Soc. 6: 325. 1920; Leptonia strigosissima (Rea) P.D. Orton in Trans. Br. mycol. Soc. 43: 178. 1960; Rhodophyllus strigosissimus (Rea) Horak in Mos., Röhrlinge-Blätterpilze 3. Aufl.: 164. 1967; Pouzaromyces strigosissimus (Rea) Horak, Syn. Gen. Agar.: 502. 1968; Pouzarella strigosissima (Rea) Mazzer, Monogr. Stud. Gen. Pouzarella: 125. 1976.
Misappl. - Pouzaromyces fumosellus sensu Pilát in Acta Mus. nat. Prag. (B) 9(2): 60. 1953. - Rhodophyllus babingtonii sensu Kühn. & Romagn., Fl. anal. Champ. sup.: 186. 1953.
Sel. icon. - Rea in Trans. Br. mycol. Soc. 6: pl. 7. 1920.
Sel. descr. & figs. - Horak, Syn. Gen. Agar.: 502. 1968; Mos. in Persoonia 7: 286. 1973; Mazzer, Monogr. Stud. Gen. Pouzarella: 125. 1976; Noordel. in Persoonia 10: 211-215, figs. 1-6. 1979.
Pileus 4-22 mm, conical, then conico-campanulate, never really expanding, with involute, then straight margin, when moist dark grey-brown to reddish brown, entirely covered with red-brown hairs, some- times forming small radially arranged squamules, sometimes glabrescent with age, not hygrophanous, not translucently striate. Lamellae, L = about 20, I = 1, distant, adnate, sometimes emarginate, rarely almost free, narrowly segmentiform to subventricose, flesh-coloured grey, then reddish brown with pruinose, concolorous, slightly paler or slightly darker edge. Stipe 25-60 x 1-3.5 mm, cylindrical, sometimes flexuose, with or without longitudinal groove, dark brown, entirely woolly-hairy with red-brown hairs like the pileus, base with ochraceous-reddish radiating hairs. Context rather dark blackish brown or reddish brown, solid. Smell spontaneously none, slightly unpleasant-spermatic when bruised. Taste not recorded.
Spores (12.5-)14.0-19.0(-20.5) x (7.0-)8.0-9.5(-11.0) µm, Q = 1.5-2.3, Qav = 1.9, strongly nodulose-angular in side-view. Basidia (35-)40-58 x 12.5-18 µm, 4-spored, clampless. Lamella edge sterile. Cheilocystidia (24-) 47-92 x (15-) 20-34 µm, rather variable in shape, narrowly to broadly clavate, obpyriform to subglobose, sometimes, particularly near margin of pileus with conical appendix, towards margin of pileus gradually passing into the setiform hairs of pileal surface, often yellowish brown incrusted, especially in middle part, sometimes also with brownish intracellular pigment. Pileipellis a transition between a cutis and a trichoderm, made up of cylindrical to broadly clavate, up to 25 µm wide elements, intermixed with red, septate, thick-walled, setiform hairs, up to 1000 µm long and 10-20 µm wide at base, gradually tapering towards acute apex. Stipitipellis a cutis of 8-12 µm wide, thick-walled, brown-incrusted, cylindrical hyphae with long setiform hairs similar to those found in pileipellis. Pigment red-brown, incrusting all hyphae and terminal elements of pileipellis, stipitipellis, and pileitrama. Clamp-connections absent.
Habitat & distr. - Gregarious, usually terrestrial, in deciduous forest on clayey, more or less calcareous soils, also found on rotten wood and in a coastal dune-valley among Salix repens. Rare, widespread in Europe and North America. June-Oct.
Taxon name: