732 THE AGARICACEAE OF MICHIGAN 



Reported by Long-year, Jackson County. Apparently rare. 



Morgan says the pileus is sometimes quite bluish. The gills are 

 said to be rounded behind and to imitate the genus Tricholoma. 

 The odor is weak but aromatic. 



772. Clitocybe truncicola Pk. 



N. Y. State Mus. Eep. 20, 1874. 



"PILEUS 2-5 cm. broad, thin, firm, expanded and slightly de- 

 pressed, glabrous, dry, white. GILLS narrow, thin, crowded, ad- 

 nato-decurrent, white. STEM equal, stuffed then hollow, glabrous, 

 often eccentric and curved. SPORES oval, 4-5 x 3-4 micr." 



On logs and branches of maple. Our specimens were found 

 on old roots of maple. September. Detroit. 



A few other species of Clitocybe are partial to wood, e. g., G. 

 cyathiforme Fr., G. leptoloma Pk., C. ectypoides Pk., and G. decora 

 Fr. 



Subsection II. Difformis. Pileus thick on disk, convex to plane, 

 obtuse or umbonate, irregular. Gills unequally decurrent or varia- 

 ble in this respect, some rounded behind as in Tricholoma. Stem 

 cacspitose, stout in our species. 



773. Clitocybe illudens Schw. (Poisonous) 



Synopsis Fung. Carolina, 1822. 



Illustrations: Mcllvaine. Amer. Fungi, PI. 29a, p. 00, 1900. 

 Marshall, Mushroom Book, p. 70, 1904. 

 Hard, Mushrooms, PL 10, Fig. 07, p. 92, 1908. 

 Conn. Nat. Hist. Snrv. Bull. 3, PL 18, 1905. 

 Rep. 32, Geol. and Nat. Resources Ind., p. 1231, Fig. 8, 1907. 

 N. Y. State Mus. Mem. 4, PL 68, 1900. 



'■> 



PILEUS 8-20 cm. broad, thick, convex to expanded, plane or de- 

 pressed, glabrous, often umbonate, bright golden or saffron yellow, 

 irregular, or lobed, margin elevated in age but often decurved. 

 FLESH white to yellowish. GILLS unequally long decurrent, close, 

 yellow, becoming discolored, narrowed to both ends, sometimes 

 forked. STEM long, 7-20 cm. long, 1-1.5 cm. thick, firm, solid, gla- 

 brous, irregularly and variously curved or twisted, narrowed at 

 base, concolor, becoming darker' at base. SPORES globose, 4-5 



