214 THE AGARICACEAE OF MICHIGAN 



193. Coprinus laniger Pk. 

 Bull. Torr. Bot. CI. 22, 491, 1895. 

 Illustration: Plate XXXVII of this Report. 



FILEUS 12-25 mm. broad, thin, conical or campanulate, pallid, 

 tawny or grayish-ochraceous, sulcate-striate, covered with tawny, 

 tomentose or floccose scales, which wholly or partly disappear. 

 GILLS crowded, whitish, then brownish black. STEM 2.5 cm. long, 

 24 mm. thick, slightly thickened at base, hollow, white, pruinose. 

 SPORES 7-10x1 niicr., oblong-elliptical. 



Caespitose or gregarious upon or near decaying wood. Unfor- 

 tunately the type specimens of this species have been lost. The 

 plants referred to this species are found growing from a more or 

 less profusely developed yellow ozonium upon various kinds of de- 

 caying wood. 



The three species G. laniger, G. ebulbosus and G. quadrifidus, 

 seem to be distinct forms in a perplexing group of brown- 

 spored wood-inhabiting Coprini, which are as yet very imperfectly 

 known. G. laniger is. smaller than either of the others and we have 

 always found it associated with the fine strands of yellow ozonium. 

 It resembles G. radians, but it has a thicker veil, which breaks into 

 evident patches instead of minute particles as in G. radians. 



G. quadrifidus and G. ebulbosus are not readily distinguished and 

 may both prove to be the species which have been known as G. floe- 

 culosus (DC) Fr. or G. (Agarieus) doniesticus Bolt. 



Section IV. Tomentosi. Universal veil a loose villose web which 

 becomes torn into distinct floccose scales. 



194. Coprinus fimetarius Fr. 

 Fries, Epicr., p. 245. 

 Illustration : Plate XXXVIII of this Report. 



PILEUS 2.5-5 cm. across, clavate then conico-expanded, vsoon 

 split and revolute, grayish, apex tinged with brown, at first covered 

 with white floccose scales, then naked, rimose-sulcate; disk even, 

 flesh thin. GILLS free, lanceolate, becoming linear and wavy, very 

 early becoming black with spores and rapidly deliquescing. STEM 

 12-15 cm. long, 4-G mm. thick, hollow, thickened at the solid base, 



