Murrill: Agaricaceae of the Pacific Coast 241 



5. Venenarius bivolvatus (Peck) 



Amanita bivolvata Peck, Bull. Torrey Club 36 : 329. 1909. 



Pileus fleshy, convex or nearly plane, at first viscid, striate on 

 the margin, white, brownish in the center, flesh white; lamellae 

 close, unequal, free, white; stem equal, solid, flocculose, annu- 

 late, white, the annulus narrow, often disappearing with age, the 

 volva large, thick, soft, spongy, lobed on the outer margin and 

 having an elevated entire inner margin surrounding the stem; 

 spores subglobose or broadly elliptic, 10-12 X 8-10 ft. 



Pileus 7-10 cm. broad; stem 13-15 cm. long, 1.6-2.5 cm. thick. 



Described from specimens collected by Baker under oaks at 

 Claremont, California. Types not seen. 



6. Venenarius calyptratus (Peck) 



Amanita calyptrata Peck, Bull. Torrey Club 27 : 14. 1900. 



Pileus fleshy, thick, convex or nearly plane, centrally covered 

 by a large irregular persistent grayish-white fragment of the 

 volva, glabrous elsewhere, striate on the margin, greenish-yellow 

 or yellowish-brown tinged with green, the margin often a little 

 paler or more yellow than the rest: lamellae close, nearly free 

 but reaching the stem and forming slight decurrent lines or stri- 

 ations on it, yellowish-white tinged with green: stem stout, 

 rather long, equal or slightly tapering upward, surrounded at 

 the base by the remains of the ruptured volva, white or yellow- 

 ish white with a faint greenish tint: spores broadly elliptic, 10 ft 

 long, 6 ft broad, usually containing a single large nucleus. 



Pileus 10-20 cm. broad: stem 10-15 cm. long, 12-20 mm. thick. 



Described from specimens collected by Dr. H. Lane in fir 

 forests in Oregon. The volva wall is one-fourth to one-half 

 inch thick in the " egg " stage, and the pileus is apparently un- 

 able to break through it at times, thus dying and decaying in its 

 infancy. Dr. Lane thoroughly tested the edibility of this spe- 

 cies and found it good and wholesome. 



7. Venenarius calyptratoides (Peck) 



Amanita calyptratoides Peck, Bull. Torrey Club 36 : 329. June, 

 1909. 



Amanita calyptroderma Atkinson & Ballen, Ann. Myc. 7: 365. 

 August, 1909. 



