146 C. H. Kauffinan 



stuffed, concentrically white-zoned from the delicate veil, zones 

 terminating above middle of stem in a flaring, membranous, 

 whitish annulus, white-scurfy above annulus, becoming at length 

 silky or glabrous below, brownish within and without under the 

 veil remnants, fuscescent. Spores subelHpsoid, but narrower 

 toward one end, inequilateral in one view, smooth, 10-12 x 5-6.5 

 IX, pale rusty brown, cystidia scattered on sides of gills, 60-70 

 x9-ll iJL, narrowly lanceolate above the slender pedicel, hya- 

 line; sterile cells similar but narrower and crowded. 



On wet moss under pine and spruce along stream. Tolland, 

 Colorado. Sept. 5. 



Pholiota unicolor (F1. D.) Fr. Infrequent. Tolland. On 

 decayed wood. 



Pleurotus betulinus (Pk.) {Panus hetulinus Pk.). Rare. 

 Tolland. Near the ground on the dead limb of a willow. 



Pleurotus ostreatus Fr. Infrequent. Tolland. On 

 stumps or dead trunks of Abies lasiocarpa. Spores are white 

 in the mass. There is no doubt that this grows on conifers in 

 this region. 



Pluteus nanus Fr. var. lutescens Fr. Not uncommon. 

 Leal. On decayed wood. 



PsALLiOTA rutilescens (Pk) emend. {Bull. Torr. Bot. Club, 

 31: 180. 1904.) 



Pileus fleshy, 10-15 cm. broad, drj^, convex-expanded, firm, 

 whitish when young and fresh, soon becoming "vinaceous- 

 cinnamon" (Ridg.) to drab, with a thick cuticle, the upper thin 

 portion of which at length breaks into small fibrillose cuneate 

 scales; flesh thick, abruptly thin at margin, white at first but 

 slowly changing when cut or bruised to rufescent-ochraceous. 

 Gills free, becoming remote, rather narrow, 5-7 mm. broad, 

 narrower behind, crowded, thin, at first " purplish-vinaceous" to 

 ''light russet-vinaceous" (Ridg.), rufescent when bruised, finally 

 "burnt umber" or blackish-brown. Stem stout, 8-12 cm. long, 

 1.5-3 cm. thick, firm, equal above the rather abrupt, often ob- 

 lique and spongy bulb, bulb sometimes almost obsolete, some- 

 times large, elsewhere silky or subfibrillose, glabrescent, solid, 

 white at first in and out, rufescent where cut or bruised. An- 



