Peck : New Species of Fungi 15 



Amanita crenulata 



Pileus thin, broadly ovate, becoming convex or nearly plane 

 and somewhat striate on the margin, adorned with a few thin 

 whitish floccose warts or with whitish flocculent patches, whitish 

 or grayish, sometimes tinged with yellow : lamellae close, reaching 

 the stem, and sometimes forming decurrent lines upon it, floccose 

 crenulate on the edge, the short ones truncate at the inner ex- 

 tremity, white: stem equal, bulbous, floccose mealy above, stuffed 

 or hollow, white, the annulus slight, evanescent : spores broadly 

 elliptic or subglobose, 7.5—10 // long, nearly as broad, usually 

 containing a single large nucleus. 



Pileus 2.5-5 cm - broad : stem 2.5-5 cm. long, 6-8 mm. thick. 



Low ground, under trees. Eastern Massachusetts. Septem- 

 ber. Mrs. E. Blackford and George E. Morris. 



The volva in this species must be very slight, as its remains 

 quickly disappear from the bulb of the stem. The remains carried 

 up by the pileus form slight warts or thin whitish areolate patches. 

 The annulus is present in very young plants, but is often wanting 

 in mature ones, in which state the plant might be mistaken for a 

 species of Amanitopsis. Its true affinity is with the tribe to which 

 Amanita ritbescens belongs. As in that species, the bulb soon be- 

 comes naked and exhibits no remains of the volva. It is similar 

 to Amanitopsis farinosa also in this respect, but quite unlike it in 

 color, in the adornments of the pileus and in the character of its 

 margin, which is even in the young plant and but slightly striate 

 in the mature state. Its dimensions are said sometimes to exceed 

 those here given, and it is reported to have been eaten without 

 harm and to be of an excellent flavor. I have had no opportunity 

 to try it. 



Lepiota rugulosa 



Pileus thin, submembranaceous, broadly convex or nearly 

 plane, umbonate, rugulose, widely striate on the margin, whitish : 

 lamellae thin, narrow, close, free, whitish : stem short, equal, 

 slightly silky, whitish, the annulus thin, persistent, white : spores 



elliptic, 7.5 fi long, 4/1 broad. 



Pileus 12-20 mm. broad: stem about 2.5 cm. long, 2 mm. 



thick. 



Moist grassy places under trees. Washington, D. C, July. 

 Mrs. E. M. Williams. Perhaps in the fresh state the pileus is not 

 as distinctly rugulose as when dry. 



