Notes and Brief Articles 



179 



common on manzanita in the vicinity of Sedona, where it attacks 

 practically every bush of this host which is over an inch in 

 diameter, causing a very characteristic heart-rot. Polyporus pini- 

 ponderosae was collected on Finns ponderosa near Albuquerque, 

 New Mexico. It should be carefully compared with Tyromyces 

 Smallii Murrill, which occurs on pine in Florida and Louisiana. 



Melanoleuca pulverulentipes Murrill, sp. nov. 



Pileus rather 'thick, convex to plane, becoming slightly umbili- 

 cate, solitary, 1.5-1.7 cm. broad; surface moist, hygrophanous, 

 smooth, glabrous, somewhat mottled, fulvous, becoming isabelline 

 on drying, margin incurved, frosted, entire, concolorous ; lamellae 

 sinuate, plane, crowded, ferruginous-melleous to ochroleucous, 

 entire and concolorous on the edges ; spores ellipsoid, smooth, 

 hyaline, 5 X 2-3 ^ ; stipe subequal, tough, smooth, pale-fulvous or 

 ochroleucous, finely pulverulent-fibrillose and ochraceous-mel- 

 leous at the apex, whitish-mycelioid at the base, 1.5-2 cm. long, 

 2-4 mm. thick. 



Type collected on the ground among mosses in woods at Lake 

 Placid, Adirondack Mountains, New York, July 17-29, 191 2, W. 

 A. & Edna L. Murrill 181 (herb. N. Y. Bot. Gard.). 



Habitat : On the ground in humus or among mosses. 



Distribution : Vicinity of Lake Placid, Adirondack Moun- 

 tains, New York. 



W. A. Murrill. 



The Rosy-spored Agarics 

 Volume 10, part 2, of North American Flora, by William A. 

 Murrill, appeared April 25, 191 7. The contents of this part may 

 be indicated, as follows : 



Genera Total North American Species New Species 



Claudopus , 9 1 



Eccilia 25 9 



Leptoniella 43 14 



Nolanea 28 11 



Pleuropus 30 5 



Lepista 4 



Entoloma 63 34 



Pluteus 57 30 



Chamaeota 2 1 



Volvariopsis 21 2 



282 107 



