1926) 



BURT — THELEPHORACEAE OF NORTH AMERICA. VX 177 



a. With some hyphae or paraphyses having antler-shaped or 



racemose branching 92-94 



b. Tissues not having antler-shaped or racemose branching 2, 95-99 



***Fructifications darker, tending to brown and vinaceous. 



a. Parasitic species 100-102 



b. Always saprophytic 103, 104 



****Fructifications green or blue 105, 106 



1. Corticium paraphysatum Burt, n. sp. 

 Type: in Mo. Bot. Gard. Herb. 



Fructifications effused, thin, closely adnate, white to pale 

 cartridge-buff in the herbarium, even, velutinous, not shining, 

 not cracked, the margin similar, thinning out; in section 45-75 [k 

 thick, not colored, composed of somewhat scattered, deeply 

 staining, clavate organs — probably basidia — immersed among 

 great numbers of slender, erect, non-staining, branching organs 

 which approach antler-form in branching and form the layer of 

 paraphyses at the surface of the hymenium; no gloeocystidia; no 

 basidia bearing sterigmata nor spores found. 



Fructifications 1-5 cm. long, ]/^-2]/i cm. wide. Small fructi- 

 fications become confluent. 



Beneath prostrate, decaying, hardwood limbs of a frondose 

 species. Cuba. Still immature in December. 



Although the specimens at hand of C. paraphysalum are still so 

 immature that it has not been possible to demonstrate their 

 mature basidia and spores, the species is distinct from others of 

 the genera Aleurodiscus, Sebacina, and Corticium which are 

 known to me. It should be readily recognizable by its thin, 

 closely adnate, white fructifications on small hardwood limbs and 

 by the abundance of the non-staining paraphyses. 



Specimens examined: 

 Cuba: Ceballos, C. J. Humphrey, 2848, type, and 2776, 2800 (in 



Mo. Bot. Gard. Herb., 63769, 63768, and 63770 respectively), 



and 2586; Omaja, C. J. Humphrey, 2698 (in Mo. Bot. Gard. 



Herb., 43063). 



2. C. sulphureum Fries, Epicr. 561. 1838; Hym. Eur. 650. 

 1874; Berkeley, Outl. Brit. Fung. 274. 1860; Sacc. Syll. Fung. 

 6:612. 1888. 



Thelephora sulphurea Fries, Syst. Mcy. 1 : 452. 1821 ; Elenchus 



