72 THE AGARICACEAE OF MICHIGAN 



Section III. Calopodes. Stem instititious, (i. e., inserted, the 

 mycelium hidden), short, not rooting. 



*Stem entirely glabrous. 



42. Marasmius scorodonius Fr. 



Syst. Myc, 1821. 



Illustrations: Cooke, 111., PL 1125. 

 Ricken, Blatterpilze, PI. 24, Fig. 6. 

 Hard, Mushrooms, Fig. 109, p. 144. 



Michael, Fiihrer f. Pilzfreunde, Vol. II, No. 44 (as M. 

 alliatus) . 



PILEUS 5-12 mm. broad, pliant, convex then plane, margin at 

 length elevated, rufous-tinged at first, then whitish, glabrous, 

 wrinkled in age, crisped on margin. FLESH thin, membranaceus. 

 GILLS adnate, narrow, close to subdistant, whitish, crisped, edge 

 minutely flocculose. STEM 2-3 cm. long, 1-2 mm. thick, tapering 

 downward, horny, tubular, terete or compressed, reddish, apex wbit- 

 ish, glabrous, inserted by the naked, blackish base, somewhat shin- 

 ing. SPORES narrowly oval-lanceolate, pointed-apiculate, 6-8x3-4 

 inicr., smooth, white. ODOR, when bruised, strong of garlic. 



Attached to base of grass, herbs and rootlets in fields, roadsides, 

 grassy places in or near woods. Ann Arbor, New Richmond, etc. 

 Probably throughout the state. June-September. Infrequent, but 

 abundant locally. 



Var. calopus (M. calopus Fr.). 



Syst. Myc, 1821. 



Illustration: Plate VIII of this Report. 



PILEUS 5-10 mm. GILLS adnewed, rather broad, emarginate. 

 subdistant. STEM 2-3 cm. long, 1 mm. thick, reddish-bay color be- 

 low, pallid-brownish above. ODOR faint or none, more noticeable 

 when drying. (Spores, etc., same as M. scorodonius.) 



Attached to grass stalks, etc., in woods. Ann Arbor. 



M. scorodonius is known by its glabrous, tapering stem, narrow 

 gills and strong odor when the plant is crushed. M. calopus is con- 

 sidered identical by some, but its slight odor, and different gills 

 show it to be at least a variety. Hard's figure scarcely represents 

 either plant as it occurs here. This species has long been used in 



