1925] 



BURT THE THELEPHORACEAE OF NORTH AMERICA. XIV 277 



small pieces separable when moistened, cream-buff in the her- 

 barium, even, not cracked, the margin thinning out, fibrillose; 

 in section 300-500 \l thick, not colored, with the hyphae 4-6 y. in 

 diameter near the substratum, densely interwoven, ascending 

 and becoming finer, sometimes incrusted towards the hymenial 

 layer; no gloeocystidia; cystidia not incrusted, tapering upward 

 to a sharp point, 4-5 y. at base, protruding 20-35 \l, confined to 

 surface of hymenium, numerous; spores hyaline, even, 4-5 X 



Fructifications 2-5 cm. long in pieces broken off at both ends, 

 3-5 cm. wide. 



On rotten wood of Alnus (?) and on bark of Robinia neo- 

 mexicana. Washington and Arizona. September and October. 



P. firma resembles P. Roumeguerii in general aspect but its 

 cystidia are slenderer than those of P. Roumeguerii, not incrusted, 

 and present in the hymenial surface only. 



Specimens examined: 

 Washington: Arlington, C. J. Humphrey, 7609, type. 

 Arizona: Santa Catalina Mountains, Coronado National Forest, 



G. G. Hedgcock & W. H. Long, comm. by C. J. Humphrey, 



2555 (in Mo. Bot. Gard. Herb., 12262). 



57. P. miniata (Berk.) Burt, n. comb. 



Thelephora miniata Berkeley in Hooker, Eng. Flora 2 2 : 168. 

 1836; Brit. Fungi, No. 251. 1843. See v. Hohnel & Litschauer, 

 K. Akad. Wiss. Wien Sitzungsber. 115: 1588. 1906. 



Type: authentic specimen in Berkeley, Brit. Fungi, 251. 



Fructification effused, somewhat membranaceous, tender, 

 English red, substance arachnoid, the margin byssoid or fibrillose 

 and often connected with mycelial strands of blood-red color; 

 hymenium drying pinkish buff to buff-pink and cinnamon-rufous; 

 in section 150-300 (x thick, not colored, the hyphae loosely ar- 

 ranged, 3-6 [i in diameter, not incrusted, rarely nodose-septate; 

 cystidia few, hair-like, not incrusted, 3J^-43^ ^ m diameter, 

 protruding 20-30 p; spores hyaline, even, 4-4 J^ X 2-2 J^ (a. 



Fructifications 2-10 cm. long, 1-2J^ cm. broad. 



On fallen limbs, usually of conifers. In England, New Hamp- 

 shire to Louisiana, and in Washington and Oregon. July to De- 

 cember. Infrequent. 



