,,-,„ THE AGARICACEAE OF MICHIGAN 



young or on the distinct umbo, silky-fibrillose, at length rimose, sonie- 

 tinirs appressed-scaly. GILLS adnexed, rather broad, ventricose, 

 Close, whitish then brownish-cinnamon, white-fimbriate on edge. 

 STEM 2-5 cm. long, 2-4 mm. thick, equal, subbulbillate at base, 

 solid, densely white-fibrillose* when young, subglabrescent, apex 

 s.-iu-r.v prninate. SPORES S-10 (rarely longer) x 4.5-5.5 micr., 

 variable in shape, subreniform-fusoid, ends somewhat narrowed, 

 smooth. CYSTIDIA rather abundant on sides and edge of gills, 

 narrowly flask-shaped, apex crystallate, 50-70x12-16 micr. BA- 

 SIDIA 30 x 9 micr., 4-spored. ODOR slight. 



Gregarious. Common in southern Michigan; on the ground in 

 low frondose woods. June-September. 



This is closely allied to I. destricta, form minor, in its micro- 

 scopic characters. The colors are, however, constantly distinct, and 

 /. destricta seems limited to coniferous regions. /. eutheloidcs 

 also approaches /. eutheles as interpreted by some authors, e. g., 

 .Massee. But according to Patouillard that species is devoid of 

 rystidia. The stem is usually markedly silky-fibrillose, and the 

 umbo is dark chestnut in young and fresh specimens. In young 

 specimens the margin of the pileus is often crenately fringed by 

 the white cortina. 



** Spores angular-tuberculate. 



483. Inocybe radiata Pk. (Poisonous) 

 Torr. Bot. Club Bull. 22, p. 488, 1895. 



I* ILEUS 1.5-5 cm. broad, campanulate, fuscous-brown to ochra- 

 ceous-brown, very nmbonate by an obtuse, dark umber umbo, which 

 remains glabrous, elsewhere appressed-fibrillose with brown fibrils, 

 not at all viscid, becoming rimose; FLESH white, thickish on disk. 

 GILLS adnate, broad, at length sinuate-uncinate, close, becoming 

 ochraceous-cinnamon to subferruginous, edge white, flocculose. 

 STEM 3-6 cm. long, 2-4 mm. thick, equal, stuffed, silky-fibrillose, 

 becoming u mber-fuscous-brown, apex paler, subbulbillate and white- 

 myceliod a1 base. SPORES irregularly oblong-rectangular to sub- 

 wedge shape in outline, angular and with few scattered tubercles, 

 7-9 x 5-0 micr. CYSTIDIA few or scattered, on sides and edge of 

 gills, 55-65 x 12-18 micr., broadly ventricose, apex somewhat pointed 

 and crystallate, on slender pedicel. ODOR earthy. TASTE mild. 



