590 



THE AGARICACEAE OF MICHIGAN 



( ; regarious. On moist soil in f rondose woods. Ann Arbor. 



August. 



This collection departs from Atkinson's description in the more 

 flocculose, hygrophanous pileus and the hollow stem. The micro- 

 scopic characters seem to be the same. 



635. Eccilia mordax Atk. 

 Jour, of Mycol., Vol. 8, p. 113, 1902. 



PILEUS 2-5 cm. broad, convex, tough, umbilicate, hygrophanous, 

 glabrous, dull-reddish-brown to pale chestnut or cinnamon (moist), 

 sordid isabelline (dry), even, margin inrolled. FLESH dirty 

 white, thin. GILLS adnate to subdecurrent, close, dingy brown at 

 first then tinged tlesh color, narrow. STEM 3-0 cm. lo»g, 3-5 mm. 

 thick, tough, equal, fibrous-cartilaginous, fistulose, often compressed, 

 concolor, glabrous or pruinose, white mycelioid at base. SPORES 

 oval, 6-7x4-5 micr.. smooth, pale flesh color. CYSTIDIA none. 

 BASIDIA clavate, 25-30x0-8 micr., 4-spored. TASTE at first 

 mild, after 15-20 minutes pungent iu the throat and causes nausea. 



Gregarious. On the ground, springy sides of ravines. Ann 

 Arbor. August. Infrequent. 



This species approaches Clitocybe cyathiformc in external ap- 

 pearance, but differs by its flesh-colored spores, its umbilicate 

 ] o'leus and the habitat on the ground. It seems to be our largest 

 Eccilia and is probably somewhat poisonous. 



Claudopus Smith. 

 (From the Latin, claudus, defective, and pes, foot.) 



Pink-spored. Stem eccentric, lateral or wanting. Pileus dimi- 

 diate or resupinate, irregular. Gills not seceding nor anastomosing, 

 radiating from an eccentric or lateral point. Spores angular or 

 pounded. 



On rotten wood or humus. Corresponding to the genus Pleu- 

 i"t us of the white-spored group. With the exception of C. nidulans, 

 they are small, insignificant, soft plants, often growing in small 

 hollows of .1. -caved wood or on humus at the base of stumps, etc. 

 The small forms are white, grayish or brown; C. nidulans is yellow 

 to buff. All except one of the small species are at first resupinate, 

 i. <'•• applied to the substratum with gills uppermost, but finally 



