Key to Psathyrella

P. pseudocorrugis (ROMAGN.) BON ss. K.V.WAV., ARNOLDS, ENDERLE
(see also E 15*)
7* Lamellae edge not pinkish underlined. 8
8 (7) Pleurocystidia often +/- (sub-) cylindrical.
C. up to 60 mm broad. Veil scanty. Sp. (7)7,5-9 x 4,5-5,5 µm. Pl. 30-45(70) x 10-
17(20) µm. Ch. 32,5-47,5 x 10-20 µm. Soil.
P. phegophila ROMAGN.
8* Pleurocystidia not (sub-) cylindrical. 9
9 (8) Spores up to 6,5 µm broad.
C. up to 40 mm broad. Veil scanty. Sp. 9-11,5 x 5,5-6,5 µm. Pl. 39-52 x 12-17 µm.
Ch. 40-50 x 11-14 µm. Muddy soil.
P. lutulenta ESTEVE-RAV. & M. VILLAREAL
9* Spores up to 5,5(6) µm broad. 10
10 (9) Spores thickwalled.
C. up to 60(75) mm broad. Veil scanty. Sp. 7-10(10,5) x 4-5,5 µm, shape and size
variable. Pl. (27,5)32,5-60(67,5) x (10)12,5-17,5(22) µm. Ch. 25-50 x 12,5-17,5
µm. Soil, pieces of wood, solitary or gregarious.
P. spadiceogrisea (SCHAEFF.: FR.) MAIRE
(Syn.: P. groegeri G. HIRSCH, P. vernalis (J. E. LANGE) M. M. MOSER, P.
spadiceogrisea f. mammifera (ROMAGN.) KITS V. WAV., P. spadiceogrisea f.
vernalis (J. E. LANGE) KITS V. WAV.)
10* Spores thinwalled.
P. fatua (FR.) KONR. & MAUBL.
(see C 13*)
11 (1) Cheilocystidia partly longer than pleurocystidia.
C. 4-13 mm broad. Veil scanty. Sp. 11-14,5 x 6-7 µm. Pl. 32,5-65 x 8-18 µm. Ch.
20-80 x 6-28 µm. Dung.