1926] 



BURT — THELEPHORACEAE OF NORTH AMERICA. XV 289 



Cuba: C. Wright, 537, type (in Kew Herb, and Curtis Herb.); 



Omaja, C. J. Humphrey, 2575. 

 Porto Rico: Rio Piedras, J. A. Stevenson & R. C. Rose, 6528 (in 



Mo. Bot. Card. Herb., 55083). 



96. C. Murrilli Burt, n. sp. 

 Type: in Mo. Bot. Card. Herb. 



Fructifications broadly effused, thick, soft, spongy, dry, 

 flexible, separable in sheets which have the hymenium between 

 light buff and crea,m-buff and the under side Van Dyke brown, 

 hymenium velutinous, not cracked, the margin concolorous with 

 the hymenium, tomentose; in section 600-900 (i thick, colored, 

 with the hyphae of the under layer brown, loosely, longitudinally 

 interwoven, rough, nodose-septate, 4-43^ (x in diameter, and with 

 hjrmenial layer 75-450 \i thick with hyaline, interwoven hyphae; 

 no gloeocystidia; basidia simple, with 4 sterigmata; spores hyaline, 

 even, cylindric, 25-35 X 6-9 [x. 



Fructification 7 cm. long, Z}/2 cm. wide in the piece seen which 

 is broken off at one end and on one side. 



On bark of decaying log of an apparently frondose species in a 

 moist virgin forest. Mexico. December. 



C Murrilli is probably a species with large, soft, dry fructi- 

 fication separable from the bark in a pliant, sheet-like mass and 

 having the hymenium buff color and the under side a rich Van 

 Dyke brown. The very large spores are another distinguishing 

 character. C. Langloisii is thinner and has smaller spores. 



Specimens examined : 

 Mexico : Jalapa, W.A. & E.L. Murrill, 182, type, coram, by N. Y. 



Bot. Card, (in Mo. Bot. Card. Herb., 44967). 



97. C. subochraceum Bresadola, Hedwigia 35: 290. 1896; 

 Sacc. Syll. Fung. 14: 221. 1899. 



Type: part of type in Burt Herb. 



Fructifications broadly effused, closely adnate, very thin, not 

 separable, becoming light pinkish cinnamon to wood-brown in the 

 herbarium, glabrous, even, not shining, not cracking, the margin 

 thinning out, whitish at first, becoming colored like the hymeni- 

 um; in section 45-100 \i. thick, only slightly colored in the hy- 



