S16 THE AGARICACEAE .OF MICHIGAN 



subdistant, rather narrow, yellow when fresh, edge entire. STEM 

 2-2.5 cm. long, 1 nun. thick, tough, equal, even, tubular, dusk// yel- 

 lowish, minutely pubescent, glabrescent. SPORES 6-7x5 micr., 

 subglobose or broadly elliptical, smooth, white. 



( >n decayed logs. Ann Arbor. September. Rare. 



The plant revives somewhat after being moistened. The pubes- 

 cence of the stem is white after the escape of the moisture. The 

 trama of the gills is composed of interwoven, narrow hyphae^ 

 quite compactly arranged. O. luteola Pk. differs in having a 

 brown and solid stem. 0. subclavata Pk. has yellow gills, but the 

 pileus is grayish-brown and stem white. 



872. Omphalia lilacifolia Pk. 



]S T . Y. State Mus. Rep. 24, 1872 (as 0. lilacina). 

 S. Y. State Mus. Rep. 29, 1878. 



Illustrations : Peck, N. Y. State Mus. Kep. 24, PL 1, Fig. 10-13. 



"PILEUS 1-2 cm. broad, convex, deeply umbilicate, glabrous, 

 viscid, hygrophanous, dingy yellow with greenish tinge and striatu- 

 late when moist,' bright sulphur-yellow when dry. GILLS decur- 

 rent, arcuate, close, narrow, pale lilac. STEM 1-2.5 cm. long, 1-2. 

 mm. thick, equal, glabrous, hollow, viscid, yellowish, with a pale 

 lilac-colored mycelium at the base. SPORES subelliptical, 5-6x3- 

 micr." 



Scattered or solitary, rarely subcaespitose, on decaying trunks 

 of hemlock, in the coniferous regions of the State. Munising, 

 Houghton, Huron Mountains, Bay View, New Richmond. July- 

 September. Infrequent. 



The colors and viscidity make this an easily recognized species- 

 0. lilacina was described from Lapland, and anteceded Peck's first 

 name; it is said to be violaceous except for the yellow gills; its cap 

 is not viscid. 



873. Omphalia pyxidata Fr. 

 Syst. Myc, 1821. 



Illustrations: Cooke, 111., PL 194. 

 Patouillard, Tab. Analyt, No. 636. 



"PILEUS 1-2 cm. broad, convex, umbilicate to infundibuliform r 



