1926] 



BURT THELEPHORACEAE OF NORTH AMERICA. XV 299 



Fructifications 5-10 mm. in diameter, near together and be- 

 coming irregularly confluent over areas up to 4 cm. long, 1-2 cm. 

 wide. 



Under side of decaying coniferous plank. Alabama and 

 Louisiana. March. 



The distinguishing characters of this species are occurrence on 

 coniferous wood in closely adnate, vinaceous fructifications, 

 which are somewhat colored next to the substratum and have 

 large spores. 



Specimens examined: 

 Alabama: Montgomery, R. P. Burke, 271 (in Mo. Bot. Gard. 



Herb., 57156). 

 Louisiana: St. Martin ville, A. B. Langlois, df, type. 



104. C. fuscostratum Burt, n. sp. 



Type: in N. Y. State Mus. Herb., Mo. Bot. Gard. Herb., and 

 Burt Herb. 



Fructifications broadly effused, thin, tender, forming a thin, 

 fragile, cartridge-buff to pale smoke-gray hymenial pellicle on an 

 arachnoid or fibrillose, wood-brown subiculum, the hymenium 

 cracking into small polygonal masses about 1 mm. in diameter, 

 the margin colored like the substance, fimbriate; in section 120- 

 300 ex thick, wood-brown, with the hyphae pale brownish, 2}^ \l 

 in diameter, nodose-septate, sometimes incrusted; no gloeo- 

 cystidia; spores hyaline, even, flattened on one side, 3-4 x2|a. 



Fructifications 3-6 cm. long, 2-3 cm. wide. 



On bark of decaying Pinus Strobus and other conifers. Canada 

 to Maryland and westward to British Columbia. August to 

 December. Uncommon. 



The fructifications of C. fuscostratum are characterized by a 

 hymenial layer as thin, fragile, and cracked as that of C. arach- 

 noideum or of C. centrifugum and a supporting layer underneath as 

 colored as that of C. subcontinuum. Compare C. ochrokucum 

 Bres. and C. olivaceo-album. 



Specimens examined: 

 Canada: J. Macoun, 15; St. Lawrence Valley, J. Macoun, 29. 

 New York: Albany, H. D. House, type (in N. Y. State Mus. Herb., 



Mo. Bot. Gard. Herb., 63750, and Burt Herb.), and H. D. 



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