604 THE AGARICACEAE OF MICHIGAN 



attached to gills and edge of pileus and becomes torn into parts 

 or shreds; the stem has a tendency to be eccentric, and is usual- 

 Is Hoccose or squamulose, and the spores are slightly smaller, 

 spherical-ovate, 8-9 (with apiculus) x 7-8 micr., white. It seems to 

 be partial to sandy soil in this State. Ann Arbor, New Richmond. 

 September. Infrequent. Poisonous. 



644. Amanita porphyria Fr. (Suspected) 



Svst. Myc., 1821. 



Illustrations: Gillet, Champignons de France, No. 5. 

 Plate CXVII of this Report. 



PILEUS 3-6 cm. broad, at first campanulate then expanded, 

 glabrous, pale brown, disk smoky-brown, moist or sub viscid, silky 

 and obscurely virgate when dry, margin even. Flesh thin, white. 

 GILLS white, slightly adnexed, close, medium in width, subventri- 

 cose, thin. STEM rather slender, 7-12 cm. long, 4-6 mm. thick, sub- 

 equal, soft, even, glabrous, stuffed then hollow, whitish to pale 

 brown, with a small bulb. ANNULUS superior but distant, thin, 

 membranous, white becoming broivn-tinged, pendant. VOLYA 

 white, thin, flaccid, .membranous, forming a thin cup, imbedded 

 with the bulb in the soil, somewhat evanescent. SPORES spherical, 

 7-9 micr. diameter, granular within, smooth, white. BASIDIA 

 4-spored. 



In low, swampy ground, among poplars and willows. July. Ann 

 Arbor. Rare. 



Distinguished from A. tomentella, by its sheathing cup and gla- 

 brous pileus. Our plants did not have the purplish tinge reported 

 as frequent in European plants. Gillet gives a good figure. The 

 annulus becomes brownish and is thin and drapes the stem at some 

 distance from the apex. In this and other respects it differs from 

 small forms of A. phalloides. This appears to correspond with 

 Ricken's "forma volvata." (Blatterpilze, PL 75, Fig. 3.) 



645. Amanita peckiana Kauri . (Suspected) 

 Mycologia, Vol. V, p. 67. 1913. 



I'lLKl'S .") !) cm. broad, at first ovate, becoming broadly convex 

 or nearly plane, white, glabrous at first, then fibrillose or some- 

 what scurf)/ with numerous minute pinkish or cream-colored squam- 



