THE AGARICACEAE OF MICHIGAN 



shaped, 50-65x15-25 micr., sparse. ODOR weak, somewhat like 

 pears, agreeable." 



Reported by Longyear. The description has been adapted from 

 Ricken, who gives the characters most fully. Ricken's diagnosis 

 agrees in microscopic details with most other authors, except that 

 his plains arc very large. Patouillard gives the same spores as 

 Ricken, but figures a small plant. Cooke (111., PI. 391) figures a 

 plain whose spores measured 11x6 micr. Cooke's spore-size has 

 been copied by Massee and Sekroeter. Thus, there seem to be two 

 species at present confused under this name. I have not seen a 

 plant which could be referred to either. 



471. Inocybe lacera Fr. 



Syst. Myc, 1821. 



Illustrations: Ricken, Die Blatterpilze, PI. 30, Fig. 4, 1911. 

 Patouillard, Tab. Analyt., No. 531. 

 Cooke, 111., PI. 583. 



"PILEUS 3-5 cm. broad, nmbonate-expanded, at times depressed, 

 uml to obtuse, fawn-brown to mouse-gray, at first almost glabrous- 

 fibrillose, soon fibrillose-scaly, becoming ragged around the umbo; 

 FLESH ih in, whitish. GILLS rounded-adnexed, broad, ventricose, 

 subdistant, brownish-clay color, at length concolor. STEM 3-4 cm. 

 long, 4-5 nun. thick, subequal, brownish, with red-brown fibrils, apex 

 naked, white-mycelioid at base, stuffed, reddish ivithin. SPORES 

 almost cylindrical, long and narrow, straight, 12-18x4-6 micr., 

 smooth. CYSTIDIA on sides and edge of gills, narrow-lanceolate, 

 54-70x14-17 micr., rounded above. ODOR slight; taste mild." 



Reported by Longyear. 



Apparently well-marked by the long, cylindrical spores. Pa- 

 touillard gives the spores of somewhat different size, 10-13 x 6-7 micr. 

 The above description is adapted from Ricken. An unusual mark 

 of this species is the naked apex of the stem; in most species this 

 is priiiimse or scurfy. A form occurred at New Richmond, which 

 agreed excepl that the spores were the size of those of J. infelix. 



472. Inocybe infelix Pk. (Poisonous) 

 N. V. State Mus. Rep. 32, 1879. 

 I'll.!-; is I 2.5 cm. broad, rather small, campanulate then ex- 



