758 THE AGARICACEAE OF MICHIGAN 



** Gills yellow or yellowish. 

 803. Collybia aquosa Fr. var. (Edible) 



Syst. Mtc, 1821. 



Illustration: Fries, I cones, PL 06, Fig. 2. 



PILEUS 2-5 cm. broad, convex at first, soon plane or depressed, 

 distinctly hygrophanous, watery-brown or rufous-brown with a yel- 

 low cast (moist), pale tan to buff (dry), obscurely rugulose, mar- 

 gin striatulate when moist, even when dry. FLESH thin, subpliant, 

 whitish, soft. GILLS adnexed or almost free, rounded behind, nar- 

 row, crowded, luteous or pallid with sulphur tinge, becoming erose. 

 STEM 5-7 cm. long, 4-6 mm. thick, equal or subequal, hollow, sub- 

 terete or compressed, minutely flocculose-pubescent, even, cuticle 

 cartilaginous, straight or flexuous, pallid or tinged sulphur-yellow, 

 especially above, extreme base slightly inflated-bulbous. SPOKES 

 5-6x3 micr., narrowly ovate, smooth, white. CYSTIDIA none. 

 ODOR and TASTE mild. 



Gaespitose. On the ground, among tamaracks or low frondose 

 woods. Ann Arbor. May 20-June. 



This is intermediate between G. dryophila and G. aquosa, but 

 because of its hygrophanous, watery flesh and finely striatulate 

 pileus it seems closer to G. aquosa. The plant has a honey -yellow 

 cap and stem, shading its citron or sulphur when fresh and moist, 

 but soon fading. The gills of G. aquosa are said to be pallid, in 

 which respect our plant differs somewhat. It forms tufts among 

 grass in drained tamarack swamps or among leaves in low woods. 

 The base of the stem is slightly enlarged, not truly bulbous nor 

 strigose-hairy. It seems to be somewhat related to G. acervata. 

 Whether it has been described is uncertain. 



804. Collybia colorea Pk. 

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



"Pileus 1-3 cm. broad, convex-expanded, subumbilicate, hygroph- 

 anous, glabrous, "luteous"-yellow, not striate, paler when dry. 

 FLESH rather thin, soft, yellowish. GILLS adnexed, emarginate, 

 close, moderately broad, luteous to sordid-ochre, edge entire. STEM 

 2-4 cm. long, 2-4 mm. thick, equal, even, subpruinose, hollow, gla- 



