:,7D THE AGARICACEAE OF MICHIGAN 



narrow, brownish-ashy to pallid with a slight flesh color, becoming 

 ashy stained, edge entire. STEM 3-6 cm. long, 2-5 mm. thick, rather 

 slender, flexible:, stuffed then hollow, p.ruinose or tomentose, white- 

 mycelioid at base, subequal, concolor or paler than pileus. SPORES 

 oval, obscurely or not at all angular, 5-6x44.5 micr., apiculate, 

 pale flesh color in mass. ODOR farinaceous. Taste bitterish or 

 very bitter. 



(Dried: Pileus and gills brownish-gray.) 



Subcaespitose or solitary. On the ground in hemlock woods. Ann 

 Alitor. Bay View. August. Infrequent. 



Var. brews Pk. is reported by Longyear in frondose woods, East 

 Lansing. This variety is pure white, with gills merely subdecurrent 

 and stem short. The species is referred by some to C. popinalis Fr. 

 The spores of the American plant appear rounded under ordinary 

 magnification, but when magnified about 1500 diameters, it is seen 

 that they are slightly angled. The angles are not sharply marked 

 and the spores never appear tubercular-angled as figured by Cooke 

 for C. popinalis; some appear to be altogether rounded. The dark 

 plants may be mistaken for Clitocybe cyathi forme, but the pileus 

 of the latter is not rivulose-cracked. Some Tricholomas have a 

 pileus of the same color and markings. The plants often turn ashy 

 where bruised. 



613. Clitopilus caespitosus Pk. 

 N. Y. State Mus. Rep. 41, 1888. 

 Illustrations : Plates CXII, CXIII of this Report. 



I'l LEUS 5-15 cm. broad, at first convex, soon expanded and plane 

 to depressed, somewhat firm but brittle, very fragile when moist 

 or water-soaked, glabrous, whitish to gray-tinged when voung, 

 watery-dingy-white (moist), dull whitish to pale tan and silky- 

 shining (dry), even, margin at first inrolled, often recurved and 

 splil in age. FLESH pallid to white, thin, subhygrophanous, some- 

 what scissile. GILLS very crowded and narrow, adnate-decurrent, 

 thin, dingy pale flesh color, edge sometimes minutely crenulate. 

 :-7 cm. long, 5-12 mm. thick, equal or tapering downward, 

 Silky-fibrillose, scurfy at apex, stuffed, fragile in age, pallid, easilv 

 splitting. SPORES short-oblong, 4-5x2.5-:; micr., smooth, sordid- 

 white with a pink tinge in mass. ODOR slightly fragrant. TASTE 



none. 



