1917] 



BURT THELEPHORACEAE OF NORTH AMERICA. VIII 243 



California: Berkeley, H, A. Lee, two collections, comm. by 

 W. A. Setchell, 1017, 1018 (in Mo. Bot. Gard. Herb., 44243, 

 44244) ; San Francisco, W. A, Setchell, 1034 (in Mo. Bot. 

 Gard. Herb., 44242). 



Mexico: Guernavaca, W, A, S Edna L, Murrill, 534, N. Y. 

 Bot. Gard., Fungi of Mexico (in Mo. Bot. Gard. Herb., 

 54511). 



2. C. fusispora (Cooke & Ell.) Cooke in Sacc. Syll. Fung. 

 6 : 650. 1888; Massee, Linn. Soc. Bot. Jour. 25 : 133. 1889. 



Corticium fusisporum Cooke & Ell. Grevillea 8 : 11. 1879. 

 Corticium fusisporum (subg. Coniophora) Cooke, Grevillea 

 8 : 89. 1880. 



Type: type and cotype in Kew Herb, and in N. Y. Bot. 

 Gard. Herb, respectively. 



Fructification effused, thin, soft, readily separable, drying 

 from tawny olive to snuff-brown, the margin mucedinous, 

 pallid; hymenium even, pulverulent; structure in section 

 200-250 /* thick with (1) a layer next to the 

 substratum of loosely and longitudinally ar- 

 ranged hyphae, hyaline, thin-walled, collaps- 

 ing, 4r-5 n in diameter, sometimes granule- 

 incrusted, sometimes forming rope-like 

 mycelial strands 20-25 /* in diameter, and 

 with (2) a compact hymenial layer; no 

 cystidia ; spores giving the color to the fructi- 

 fication, fusiform, tapering at both ends. Fig. 2 

 curved at the base, 18-21x5-6 /x. c. fusispora. 



r\ ' T . T ! J Spores, incrusted 



On pine wood m wood pile and on pme hypha. x 665. 

 logs. Newfield, New Jersey. September. 



This species is so similar to C. cerehella in color and prob- 

 ably in diameter of fructification that when Ellis collected it 

 again, seven years after his type collection, he confused these 

 later specimens with C. puteana and distributed some speci- 

 mens under the latter name in some copies of his exsiccati. 

 C. fusispora is distinct from C. cerehella by being thinner, 

 dry rather than fleshy, having longer and more pointed spores, 

 and by being two-layered and with the layer next to the sub- 

 stratum composed of very loosely arranged hyphae having 



