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MycoBank: 304309 Basionym: Drosophila pseudogracilis Romagn. 1952 in Bull. mens. Soc. linn. Lyon 21: 152 Original diagnosis: |
| "Pileo 1-3,5 cm.,in primordiis obtuse campanulato, deinde campanulato vix ± expanso, obtuso, vel mammoso, non multum hygrophano, primum e melleo ochraceo, deinde sicco opaco et albido, subcinereo, vel leviter circum incarnato, micaceo, ± ruguloso ; velo haud manifesto (cortina nulla, etiam in primordiis !). Lamellis primum substipatis, deinde subdistantibus, adnatis, paulum ventricosis, 2[,]5-4,5 mm. latis, cinereis, deinde atris vel obscure fuscis, acie pruinosa et ± rosea. Sporis 11,5-16,5 x 5,7-7,5 µ, opacis. Basidiis plerumque tetrasporis, 19-35 x (8)10-13 µ. Cystidiis lageniformibus, collo crasso, obtuse atque saepe subcapitato, 45-80 x 11-16(20) µ, in acie plerumque claviformibus. Trama hyalina. Inter gramina vel frusta lignea, vulgarissima." |
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Typus: Important synonyms: Drosophila pseudogracilis f. minor Romagn. 1975 in Bull. trimest. Soc. mycol. Fr. 91: 218 Psathyrella prona var. utriformis Kits v. Wav. 1972 in Persoonia 7: 43 Select. descript.: Breitenbach & Kränzlin (1995): 284 (also as Psathyrella prona var. utriformis), Christan & Hussong (2016): 46, Consiglio (2005): 14f., Enderle (1994): 67ff., Eyssartier (2004): 23ff., Galland & Romagnesi (1975): 218f. (as Drosophila pseudogracilis "forme minor"), Garnweidner (1998): 14, Kits v. Wav. (1976): 396ff., (1985): 50ff., 89ff. (as Psathyrella prona var. utrifromis), Ludwig (2007): 684f., Örstadius & Knudsen (2008): 590 Select. icons: Breitenbach & Kränzlin (1995): 285 (also as Psathyrella prona var. utriformis), Christan & Hussong (2016): 46, Consiglio (2005): 15, Enderle (2004): 416, Eyssartier (2004): 29, Ludwig (2007a): 204, Saar (2019): 36 |
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Macrocharacters: Pileus young hemispherical, approximately 5 x 5 bis 8 x 8 mm, old conical, campanulate or flat convex, up to 35 (-50) mm broad, mostly without umbo. Young yellowish to orange brown with a paler margin, moist high striated, sometimes strongly rugolose, older more greyish, during drying almost always with distinctly pinkish tones. Veil only on youngest fruitbodies between cap and stipe, extremely volatile. Lamellae moderately close to somewhat distant, adnate, at first whitish, later grey brown, edge pinkish to red brown underlined but mostly white fimbriated. Stipe 30-100 x 1-3 mm, with a 25-35 mm long pseudorhiza, base often somewhat enlarged and tomentose. Spore print black with a trace o red. |
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Microcharacters: Spores 10-15 (-17,5) x 5,5-7 (-7,5) µm, av. 11,4-13,7 x 5,7-6,9, av. Q=1,88-2,20, slender ellipsoid, ovoid, germ pore large, truncat. In water and ammonia red brown, in KOH blackish brown with a purplish tone, subopaque. Basidia 16,5-35 x 8,2-13,5 µm, 4-spored. Cheilocystidia 24,5-60 (-75) x 7-20 (-27), mostly utriform, rarely lageniform, sometimes capitate, numerous but mostly not crowded. Clavate and sphaeropedunculate marginal cells 9,5-30 x 5-13,5 µm, walls often slightly thickened and yellowish brown pigmented, often in crowded clusters. Pleurocystidia (33-) 40-60 (-100) x 10-20 (-25), mostly utriform, rarely subcylindrical to clavat, sometimes (sub-)capitate, very rarely forked, numerous. Clamps present. |
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