1926] 



BURT THELEPHORACEAE OF NORTH AMERICA. XV 183 



Specimens examined : 

 Vermont : Middlebury, E. A . Burt. 

 Idaho: Priest River, E. E. Hubert, comm. by J. R. Weir, 12026, 



type (in Mo. Bot. Gard. Herb., 63379). 



7. C. Berkeleyi Cooke in Massee, Linn. Soc. Bot. Jour. 27: 

 133. 1890; Sacc. Syll. Fung. 11: 127. 1895. 



Type: type distribution in Ravenel, Fungi Am., 225. 



Fructifications broadly effused, thin, membranaceous-arach- 

 noid, small pieces separable when moistened, whitish at first, 

 becoming light buff to pinkish buff in the herbarium, even or 

 minutely granular, not waxy nor shining, cracked, the margin 

 thinning out, with hyphae interwoven; in section 100-200 \l 

 thick, not colored, with hyphae nodose-septate, not incrusted, 

 4-5 \l in diameter along the substratum and sending out ascend- 

 ing, loosely arranged branches which become smaller and densely 

 arranged in the hymenium; no gloeocystidia; basidia 4-spored; 

 spores hyaline, even, subglobose and 4-8 X 4-6 \k, or globose and 

 4-6 (i in diameter. 



Fructifications 3-10 cm. in diameter. 



On bark and wood of conifers usually pine. Canada to 

 Texas and in Michigan, Idaho, British Columbia, and New 

 Mexico. April to November. Infrequent. 



C. Berkeleyi probably covers large areas on bark of pine logs. 

 It is white or very nearly white, with the hymenium barely con- 

 tinuous, spores globose or subglobose, and hyphae coarse and 

 mostly erect, like those of C. bombycinum but with not as thick 

 fructifications and a very inconspicuous margin in comparison 

 with C. bombycinum. 



Specimens examined : 

 Exsiccati: Ellis, N. Am. Fungi, 934; Ravenel, Fungi Am., 225, 



type distribution. 

 Canada: J. Macoun, 32; Lower St. Lawrence Valley, J. Macoun, 



Ontario: Ottawa, J. Macoun, 35. 

 New Hampshire: Chocorua, W. G. Farlow, 9. 

 Vermont: Middlebury, E. A. Burt. 



New York: Newtonville, C. H. Peck (in N. Y. State Mus. Herb., 

 and Mo. Bot. Gard. Herb., 14854). 



