136 Thirty-fifth Report on the State Museum. 



PoLTPORUS (Placodermei) fraxinophilus, Pk. 



Pileus sessile, thick, corky, subtriquetrous, narrow, somewhat 

 decurrent behind, the lirst year whitish, with a minute whitish 

 tomentum or hairiness, then gray, finally blackish, in old specimens 

 concentrically sulcate, rimose, the substance within obscurely 

 zoned, at first whitish, then isabelline or pale-tawny, the margin 

 obtuse ; pores stratose, plane or subconvex, small, nearly equal, 

 subrotund, the dissepiments obtuse, entire, whitish ; spores 

 white, broadly elliptical, -0003 — 00035' long, -00025' — 0003' 

 broad. 



Pileus 2' — 4' long, 1' — 1-5' broad. 



Trunks and branches of dead or languishing ash trees. Coey- 

 mans, Albany county. May and September. 



The species belongs to the tribe Fomentarii, and is related by 

 its whitish pores and surface to P, connatus, but its colored sub- 

 stance and larger pores will easily distinguish it from that species. 

 Irpbx crassus, B. and C. 



Oak stumps, North Greenbush. October. 

 Irpex mollis, B. and C. 



Decaying wood. Helderberg mountains. October. 



The teeth in this species are sometimes compressed in such a 

 manner that they appear like radiating lamellse broken up into 

 narrow segments. They have a coarse stout appearance even when 

 most of them are subulate. The pileus is whitish and moist when 

 fresh. A resupinate form occurs, both of this species and of 

 /. ladeus. 

 Corticium effuscatum, O. and E. 



Dead branches. East Berne. August. 

 Thelephora rosella, n. sp. 



Very small, tufted, rosette-like, variously laciniate, dentate or 

 subfirabriate on the margins, whitish or subincarnate, developing 

 from a blackish tubercle ; spores minute, narrowly elliptical or 

 sublanceolate, -0002' — 00025' long, scarcely half as wide. 



Dead branches of alder, ^/?ms tVzcawa. Sandlake. July. 



This is a very singular species, and may prove to be an imper- 

 fect condition of some fungus quite unlike this one. 

 Clavaria pinophila, n. sp. 



Stems short, more or less tufted, much branched ; branches 

 crowded, often compressed above and subdigitately divided, pale- 

 ochraceous, ultimate ramuli rather long, subulate, white ; spores 

 oblong or sublanceolate, -0004' — 0005' long, • 00016' broad. 



Thin woods under pine trees. East Berne. August. 



The tufts are about one inch high. The spores appear white 

 when caught on brown paper. 



