NATURAL HISTORY SURVEY 71 



Volvaria gloiocephala Fr. 



Pileus fuliginous, fleshy, campanulate then expanded, um- 

 bonate, smooth, glutinous, striate at the margin. 



Lamellae free, reddish. 



Stem solid, smooth, becoming fuscous or tawny, the volva 

 which is circularly split, pressed close. 



Pileus about 7.5 cm. broad; stem 15 cm. or more high, about 

 1.5 cm. thick in the center, attenuated upwards, bulbous at the 

 base. Smell strong and unpleasant, taste disagreeable. Very 

 poisonous. 



Roadside in decaying rubbish at the edge of a woodpile, near 

 Riverside, May, 1899. The specimens were determined as above 

 by Mr. C. G. Lloyd. It may, however, be V. speciosa. More 

 material is needed to set aside all doubt. 



Volvaria bombycina Schaeff. 



Pileus fleshy, soft, campanulate then expanded, subumbonate, 

 silky, fibrillose, self-colored. 



Lamellae flesh-colored. Stem solid, attenuated, smooth. 

 Volva very large. 



On decayed wood. 



A single specimen was found by Mr. Arthur Gammon, upon a 

 dead street tree (Acer dasycarpum) , Wheaton, October, 1898. 

 Our plant has a pileus 7 cm. in diameter; stem 7.5 cm. long, 12 

 mm. thick. Spores broadly ellipsoid or subglobose, 6 to 7 x 5 /*. 

 The stem is curved upward like that of Pleurotus ulmarius; the 

 lamellae somewhat crowded and remarkably distant, there being 

 an interval of 3 to 5 mm. between their point of insertion and 

 the apex of the stem. A single specimen was found by Miss 

 Jennette Lawrence, upon a living street tree, Wheaton, June, 

 1900, and one by Mr. John W. Sercomb, in woods at Dolton, 

 July, 1901. 



Volvaria pusilla Pers. 



Pileus explanate, white, fibrillose, dry, striate, center slightly 

 depressed when mature. 



Lamellae white, becoming flesh-color, free, distant. 



Stem white, glabrous. Volva split to the base into four nearly 

 equal segments. Spores broadly ellipsoid, almost globose, 5 

 to 6/x. 



Among weeds in a garden, Wheaton, July, 1902. The follow- 

 ing additional characters are noted. Lamellae broad, rounded 

 behind, very broad and truncate in front. Stem slightly pubes- 

 cent at the apex. Volva membranous, pallid, wholly above the 

 ground, split nearly to the base into three subequal segments. 

 Pileus 10 mm. broad; stem 15 mm. long, a little more than a 

 millimeter thick. Spores pink, subglobose, 5 to 6 /*. 



