[Vol. 13 

 236 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Fructifications 6-8 cm. long, 2-5 cm. wide. 

 On bark of logs of Tsuga canadensis, Picea and Pinus. Canada, 

 Colorado and Washington. September. 



C. rubicundum has large, sheet-like, loosely attached fructi- 

 fications with somewhat the aspect of those of Peniophora 

 velutina but lacking cystidia. The thick, membranaceous, loosely 

 attached fructification is suggestive of a resupinate Stereum but 

 I have seen no Stereum of which this may be the resupinate stage. 

 The occurrence on hemlock bark should help in identifying 

 future gatherings. 



Specimens examined: 

 Canada: Lake Rosseau, Ontario, E. T. & S. A. Harper, 637, type. 

 Colorado: near Mancos, G. G. Hedgcock, comm. by C. J. Hum- 

 phrey, 2560. 

 Washington: Mt. Paddo, W. N. Suksdvrf, 735, 736. 



45. C. granulatum Burt, n. sp. 

 Type: in Burt Herb. 



Fructifications effused, thin, closely adnate, central portions 

 fawn-color, becoming wood-brown in the herbarium, dull rather 

 than shining, with some scattered, small granules, not cracked, 

 the margin fimbriate, fading from ochroleucous to whitish; in 

 section 120-240 \i thick, not colored, with a narrow incrusted 

 zone, the hyphae densely interwoven, 3 y. in diameter, somewhat 

 incrusted, not nodose-septate; no gloeocystidia; basidia protrud- 

 ing slightly when mature, with 4 sterigmata; spores hyaline, 

 even, 4-5 X 2-3 y.. 



Fructifications 3-5 cm. long, 1-2 cm. wide. 



On very rotten wood of Populus trichocarpa. Idaho. Sep- 

 tember and October. 



This species should be readily recognized by its color when 

 fresh, somewhat granular hymenium, and occurrence on decaying 

 poplar wood. The incrustation of the hyphae is a good available 

 character for separation from C. subceraceum and C. deflectens. 



Specimens examined: 

 Idaho: Priest River, /. R. Weir, 33, type, and 106. 



46. C. illaqueatum Bourdot & Galzin, Soc. Myc. Fr. Bui. 27: 

 238. 1911. 



