Translated from Gerhardt, E. (1996). Taxonomische Revision der Gattungen Panaeolus und Panaeolina (Fungi, Agaricales, Coprinaceae). Bibliotheca Botanica 147: 1-149.

(30) Panaeolina foenisecii (Pers.: Fr.) Maire in Publ. Junta Ci. Nat. Barcelona 3(2): 109 (1939).

DESCRIPTION
PILEUS
- Cap 1-3 (4) cm wide
- hemispherical to convex shape, rarely nearly flat
- sometimes with rounded hump
- mostly bare and smooth, but also wrinkled slightly
- not greasy, margin lined when wet, translucent
- hygrophanous
- Color meat brown, gray, brown, dark brown
- Sometimes concentrically streaked, beige almost white to pale at end, in transition with darker, trolled by marginal zone (similar to Panaeolus cinctulus or P. fimicola).
LAMELLAE
- Gills attached
- ascending, moderately crowded
- Only beige brown, almost black, then brown, spotted, with lighter/sterile edge.
STIPE
- Stipe 30-80 × 1.5-3 mm, cylindrical
- narrow, hollow, frail, bent straight up
- completely frosted upward, fine flaky
- slightly lighter colored than the cap
- In the upper part sometimes almost hyaline, brownish below, drying almost whitish
MICROSCOPIC FEATURES
BASIDIA
- Basidia (1 -) 2 – to 4-spored
- About 25-30 × 10-12 microns.
PILEIPELLIS
- Epicutis cellular
- cells approximately 15-25 microns wide
SPORES
- Spores (11.5) 14-17 (22) x (7.5) 8.5-11 microns, lemon-shaped
- distinctly rough, yellow-brown, transparent
- often flattened in the microscope with large oil drops
- Germ pores often brought forward significantly, especially in 2-spored forms
SULPHIDIA
- Absent
CHEILOCYSTIDIA
- Cheilocystidia hyaline, pot-shaped bottle
- tip occasionally sold capitate,
- About 25-50 microns long.