1926] 



BURT THELEPHORACEAE OF NORTH AMERICA. XV 277 



gloeocystidia. This aspect, together with uncommon gloeocys- 

 tidia and non-incrusted hyphae, are good distinctive characters. 



Specimens examined : 

 New Hampshire: Chocorua, W. G. Farlow, 148, type (in Mo. Bot. 



Gard. Herb., 55248). 



87. C. subcinereum Burt, n. sp. Ouo,-i^ 

 Type: in Burt Herb. K*>~ u-^^ yi^Jjl 

 Fructifications long-effused, closely adnate, thin, not at all 



separable, pale gull-gray to pale drab-gray, slightly granular, 

 somewhat pruinose, becoming cracked in drying, the margin 

 similar or paler, thinning out; in section 60-100 y. thick, slightly 

 colored, with the hyphae densely interwoven, 1-2 ;x in diameter, 

 so grown together as to show structure indistinctly, but probably 

 not nodose-septate nor incrusted; no cystidia nor gloeocystidia; 

 branched paraphyses about 1 n in diameter are present in the 

 hymenium; spores hyaline, even, 5-8 X 3-3 J/^ t*. 



Fructifications 2-10 cm. long, 1-2 cm. wide. 



On bark of fallen, decaying limbs of Betula, Cornus, and 

 Syringa. Canada, Massachusetts, and Kansas. February to 

 October. Local. 



C. subcinereum closely resembles Peniophora cinerea, P. caesia, 

 and C. argentea in aspect but is distinct from each by its lack of 

 cystidia and gloeocystidia. 



Specimens examined : 

 Canada: Ottawa, J. Macoun, 37, type. 

 Massachusetts: Sharon, A.P.D. Piguet, comm. by W. G. Farlow, 



8 (in Mo. Bot. Gard. Herb., 55289). 

 Kansas: Rockport, E. Bartholomew; Rooks County, comm. by 



Lloyd Herb., 2301; Stockton, E. Bartholomew, 8620, 8702 (in 



Mo. Bot. Gard. Herb., 62491, 63749, and Burt Herb.). 



88. C. albido-carneum (Schw.) Massee, Linn. Soc. Bot. Jour. 

 27: 142. 1890. 



Thelephora albido-carnea Schweinitz, Am. Phil. Soc. Trans. 

 N. S. 4: 169. 1832 Cor ticium albido-carneum (Schw.) Ravenel, 

 Fungi Car. 4 : 14, was a misdetermination by Ravenel. 



Type: in Schweinitz Herb., Farlow Herb., and Kew Herb. 



