1925] 



BURT THE THELEPHORACEAE OF NORTH AMERICA. XIV 251 



Fructifications long and broadly effused, very thin, closely 

 adnate, pinkish buff in the herbarium, even, somewhat puberu- 

 lent and setulose under a lens, not cracked, the margin thinning 

 out, indeterminate; in section 30-45 [l thick, not colored, com- 

 posed of densely interwoven, hyaline hyphae about 3 [l in di- 

 ameter, indistinct; no gloeocystidia; cystidia incrusted, fusiform, 

 40-50 X 10-15 (jl, protruding up to 50 y. beyond the basidia; 

 spores hyaline, even, 4-5 X 3-3J^ y.. 



Fructifications 10-12 cm. long, 2-3 cm. wide. 



On dead pieces of Celtis. Florida and Louisiana. August and 

 March. 



The 3 gatherings under the name P. vernicosa in Ellis Col- 

 lection of New York Botanical Garden and duplicates of these 

 communicated to me directly by Langlois seem to be thin forms 

 of 3 species, 2 of which are well known. The type of P. vernicosa 

 shows the location of the fructification by the pinkish buff color 

 of the area covered, somewhat varnish-like effect produced, and 

 cystidia visible under a lens. There is the bare possibility that 

 P. vernicosa may be demonstrated to be the very early stage of 

 P. flavido-alba but my knowledge of the latter does not at present 

 warrant such a conclusion. 



Specimens examined : 

 Florida: Cutler Hammock, W. A. Murrill, 86, comm. by N. Y. 



Bot. Gard. Herb, (in Mo. Bot. Gard. Herb., 62082). 

 Louisiana: St. Martinville, A. B. Langlois, 1965, type (in N. Y. 



Bot. Gard. Herb., Mo. Bot. Gard. Herb., 63726, and Burt 



Herb.). 



36. P. texana Burt, n. sp. 



Type: in Mo. Bot. Gard. Herb. 



Fructifications long and broadly effused, adnate, thin, even, 

 not shining, drying between cream-buff and pinkish buff and 

 cracking transversely, the margin indeterminate, thinning out; 

 in section about 100 \l thick, not colored, with the hyphae in- 

 distinct, interwoven, 3-3}^ y. in diameter, not incrusted; cystidia 

 incrusted, conical, often tilted, not colored, 45-55 X 10-12 \l, 

 protruding beyond the basidia up to 45 ^; no gloeocystidia nor 

 conducting organs; spores copious, hyaline, even, 43^-6 X 3- 



