Mycological F/ora. 327 



565 Agaricus (Collybia) coloreus. Peck, 



Stem in our plant is pale, brownish yellow below, and 

 lightish or white above. 



On decaying basswood stumps. - June and September, 

 and October. 



566. Agaricus (Mycena) iris. Berk. 



"Blue Mycena." 

 On bits of decayed wood, beside an old oak stump in 

 oak thickets. October. Rare. 



567. Agaricus (Mycena) proliforous. Sozv. 

 "Proliferous Mycena." 



When matured, the cuticle of the pileus frequently con- 

 tracts towards the center, producing a cup shape, and some- 

 times contracts to a globe shape, showing nothing but the 

 gills turned up over the pileus. 



As far as observed our plants are gregarious or solitary, 

 not caespitose. On rich soil amongst grass in open woods. 

 Nicollet Island. June. Not common. 



568. Agaricus (Mycena) vitreus. Fr. 

 "Glassy Mycena." 



Our plant is not very fragile. Stem nearly 4 inches long, 

 nearly one line thick, and very brittle. 



In woods amongst moss. Often attached by mycelium. 

 October. 



569. Agaricus (Mycena) tenuis. Bolt. 

 "Slender Mycena." 



Pileus and stem brownish ; stem I to 2 inches long, not 

 a line thick, 



Amongst moss en the ground in damp woods. June. 

 Scarce. 



