242 



Mycologia 



Pile us fleshy, convex, then nearly plane, striate on the mar- 

 gin, covered in the center by a large irregular adhering frag- 

 ment of the white universal veil or by small fragments formed 

 by the breaking up of the veil, grayish-brown or lead-colored or 

 sometimes ochraceous or cream-colored, flesh white, taste mild; 

 lamellae moderately close, unequal, sinuate, adnexed, white ; stem 

 nearly equal, hollow, striate at the top, white, the slight evanes- 

 cent annulus soon disappearing or becoming inconspicuous; 

 spores often uninucleate, broadly elliptic, 10-12 X 6-8 /x, usu- 

 ally with an oblique apiculus at one end. 



Pileus 4-8 cm. broad; stem 8-12 cm. long, 8-16 mm. thick. 



Described from specimens collected by Baker at Claremont, 

 California. Mrs. Ballen's specimens, judging from her descrip- 

 tion, agree substantially, only they are somewhat larger. V. 

 calyptrata is distinguished chiefly by its greenish tints. 



8. Venenarius umbrinidiscus sp. nov. 



Pileus fleshy, drying very thin, convex to expanded, at length 

 depressed, umbonate, solitary, reaching 10 cm. broad; surface 

 moist, glabrous, with large, irregular, adherent patches of the 

 white volva, melleous, fading to stramineous on the conspicu- 

 ously long-striate margin, the umbo yellow in young plants, be- 

 coming umbrinous ; lamellae free, broad, not crowded, white ; 

 spores large, subglobose, smooth, hyaline, 7-9/^; stipe white or 

 slightly yellowish, tapering upward, 12 cm. long, 1-2 cm. thick; 

 annulus ample, white, persistent, fixed above the center of the 

 stipe; volva rather short, white, tough, 3 cm. broad, with sub- 

 entire free limb. 



Type collected on the ground in a fir forest near Seattle, Wash- 

 ington, October 20-November i, 191 1, W . A. Murrill 414. Also 

 collected in the same region, S. M. Zeller 100. The flesh and 

 gills are freely eaten by slugs. Related to Amanita virosa. 



9. Venenarius pantherinoides sp. nov. 



Pileus thick, fleshy, globose to plane, solitary, reaching 10 

 cm. broad; surface melleous or dirty-cremeous with brown or 

 chestnut center, sticky when wet, slightly striate in old plants, 

 the white volval patches small, numerous, regular, and regularly 

 distributed until many of them fall away with age; lamellae 

 sinuate, crowded, plane, white ; spores ovoid, smooth, hyaline, 

 9X 5/>i; stipe tapering upward, white, glabrous, reaching 11 cm. 



