312 THE AGARICACEAE OF MICHIGAN 



h \ grophanous, darker when dry, glabrous, striate on margin. GILLS 

 adnate, sometimes slightly subdecurrent, narrow, crowded, dark 

 reddish-brown at maturity. STEM 2-8 cm. long, 3-5 mm. thick, 

 equal, glabrous, stuffed then hollow, concolor, darker at base. AN- 

 NULUS distant, fugacious. SPORES elliptical, 7-8.5x4-5 micr. 

 CYSTIDIA few or scattered, lanceolate-linear, 60-75 micr., sub- 

 \ cut iico.se below. 



Solitary or caespitose. On decaying logs, limbs, etc., everywhere 

 in woods. Throughout the State. Records from May 9 to Novem- 

 ber 2. 



A very common little Pholiota, which appears to run into the 

 preceding, although Fries says it is very distinct. It has appeared 

 every month of the season in different years, but is more abundant 

 in spring and fall. Peck has described a species under the name 

 /'. marginella, which he says differs from P. marginata by the even, 

 hbrillose margin of the pileus, the adnexed gills and the paler, uni- 

 colorous stem. I have not seen it. P. autumnalis Pk. is probably 

 the same and is said to be poisonous. 



Section TV. Muscigcni. Growing on moss, wet ground or 

 very decayed wood. Pileus hygrophanous. Cystidia absent, or in 

 form of sterile cells on edge of gills. 



307. Pholiota rugosa Pk. 

 N. Y. State Mus. Rep. 50, 1897. 



PILEUS .5-3 cm. broad, (usually about 1 cm.), conical or cam- 

 panulate, then expanded and umbonate, hygrophanous, striatulate 

 "ii margin and rufous-ockraceous (moist), yellowish or pale ochrace- 

 ous (dry), becoming rugose-wrinkled on drying. FLESH thin, con- 

 color. GILLS adnexed, close to subdistant, not broad, slightly 

 v.-n i iin.se, pallid ochraceous at first, then rusty brownish, white- 

 fimbriate on edge. STEM 3-5 cm. long, 1-3.5 mm. thick, slender, 

 equal or slightly thickened at base, hollow, fibrillose or scaly below 

 the annulus, white-mealy at apex, concolor or pallid. ANNULUS 

 distant, membranous, persistent, beautifully striate on upper side, 

 wl.ii ish beneath. CYSTIDIA none; club-shaped sterile cells on 

 edge of -ills. SPORES elliptical, 10-12x5-6 micr., smooth. ODOR 

 and TASTE none. 



Solitary or gregarious. On very decayed wood or on the ground 

 in wei places. I„ mixed or frondose woods. Throughout the State. 



