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MycoBank: 511722 Basionym: Agaricus marcessibilis Britzelm. 1893 in Bot. Centralbl. 54: 69 Original diagnosis: |
| "- marcessibilis B.; B. f. 209; H. blass bis satt grau oder gelbgrau, weisslich verbleichend, am R. mit Schleierhäuten; St. weissseidig glänzend; L. g., grau braun, grauviolett, R. weiss bestäubt; Sp. 14 : 6; Herbst, Waldränd, A.; dem A. piluliformis v. -" |
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Important synonyms: |
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Hypholoma marcescibile (Britzelm.) Sacc. 1895 in Syll. fung. 11: 71 Drosophila marcescibilis (Britzelm.) Romagn. 1944 in Bull. mens. Soc. linn. Lyon 13: 51 Drosophila marcescibilis f. elata Malenc. apud Malenc. & Bertault 1970 in Fl. Champ. Maroc 1: 214, pl. 8 fig. 40 Psathyrella marcescibilis var. elata (Malençon & Bertault) Citérin & Bon 1995 in Doc. mycol. 24(96): 45 Psathyrella marcescibilis (Britzelm.) Singer 1951 ("1949") in Lilloa 22: 466 Psathyrella marcescibilis f. virginea J. E. Lange 1936 in Dansk bot. Ark. 9(1): 7 (inval.) Psathyrella marcescibilis var. virginea J. E. Lange ex Surault, Tassi & Coué 2004 in Doc. mycol. 33(132): 10 Coprinopsis marcescibilis var. virginea (J. E. Lange ex Surault, Tassi & Coué) Valade 2014 in Index Fungorum 187: 1 |
Drosophila involuta Romagn. 1952 in Bull. mens. Soc. linn. Lyon 21: 156 Psathyrella involuta (Romagn.) M.M. Moser 1967 in Kl. Krypt.fl. 2b/2, 3. ed.: 217 Psathyra fragilissima J. E. Lange 1936 in Dansk bot. Ark. 9(1): 6 (inval.), ex J. E. Lange 1939 in Fl. Agar. Dan. 5: VIII (non Psathyra fragilissima Kauffman 1925 in Pap. Mich. Acad. Sci. 5: 141) Drosophila fragilissima (J. E. Lange) Romagn. 1937 in Rev. Mycol. 2: 246 Psathyrella lactea J.E. Lange 1936 in Dansk bot. Ark. 9(1): 6 (inval.) Psathyrella lactea J.E. Lange ex J.E. Lange 1940 in Fl. Agaric. Danic. 5: 92 Psathyrella delicatella A. H. Sm. 1972 in Mem. N. Y. bot. Gdn. 24: 185 Psathyrella elwhaensis A. H. Sm. 1972 in Mem. N. Y. bot. Gdn. 24: 94 Misappl.: Agaricus (Psilocybe) cernuus ss. Cooke 1871 in Handbook of British Fungi: 148f. |
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Select. descript.: Breitenbach & Kränzlin (1995): 272 (as Psathyrella marcescibilis), Enderle & Zuccherelli (1993): 126f. (as P. marcessibilis), Garnweidner (1998): 10 (as P. marcescibilis), Kits v. Wav. (1985): 141ff. (as P. marcescibilis), Krieglsteiner & Gminder (2010): 624 (as P. marcessibilis), Lange (1939): 92 (as Psathyra fragilissima + lactea), Ludwig (2007): 627f. (as P. marcescibilis), Mifsud (2017): 21f., Muñoz & Caballero (2013):18ff., Örstadius & Knudsen (2008): 588, Romagnesi (1982): 49f. (as P. involuta), Siepe (1987): 8f. (as P. marcescibilis), Smith (1972): 94f. (als <>P. elwhaensis), 185 (as P. delicatella) Select. icons: Breitenbach & Kränzlin (1995): 273 (as Psathyrella marcescibilis), Enderle & Zuccherelli (1993): 126 (as P. marcessibilis), Gerhardt (1998): 365 (as P. marcescibilis), Krieglsteiner & Gminder (2010): 624 (as P. marcessibilis), Lange (1939): plate 151 fig. F (as Psathyra fragilissima), plate 150 fig. A (as Psathyra lactea), Ludwig (2007a): 187 + 188 (as P. marcescibilis), Montag (2010): 52 (as P. marcescibilis), Muñoz & Caballero (2013):19 |
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Macrocharacters: Pileus: Young 58-10 x 5-10 mm, elongate-hemispherical, later 15-40 (-80) x 7-20 (-30) mm, sharply conically, finally flattend with or without umbo. Moist high-striated, brown, fading rapidly to greyish, grey brown or nearly white, often heavily rugolose. Veil white, hardly volatile, usually for a long time as denticles on the margin. Lamellae: Close, gray to grey-brown with white fimbriated edge. Stipe: 30-105 (-160) x (1-) 2-6 (-12) mm, white, shiny, apically slightly tapering, strongly fibrillose or flocked, apex pruinose, base tomentose. Spore print: Black with a trace of red. |
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Microcharacters: Spores: (10-) 11,2-15 (-17,5 from 2-spored basidia) x 5,5-7,5 (-9) µm, av. 11,6-14,2 x 6,4-7,2 µm, av. Q=1,60-2,00, ellipsoid, ovoid, subcylindrical, germ pore large and truncat. In water brown, in ammonia somewhat darker, in KOH dark chocolate brown to blackish brown with a reddish tone, subopaque. Basidia: 17-35,5 x 8,2-15 µm, 4-spored, sometimes some 2-spored. Cheilocystidia: (16,5-) 20-45 (-80) x (5,5-) 7-17,5 µm, usually constricted to significantly capitate, sometimes forked, numerous and crowded. Undermixed by some sphaeropedunculate and clavate marginal cells, up to 24,5 (-38) x 16,5 µm. Edge not pigmented. Pleurocystidia: Absent. Caulocystidia: 24,5-60 (-70) x 7-22 µm, numerous, in large clusters, usually apically swollen. Undermixed by some clavate cells, 16,5-35,5 x 7-16,5 µm. Veil cells: 30-180 x 3-16 µm, cylindrical or slightly ventricose, colourless, with small-grained deposits. Clamps: Present. |
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