1925] 



BURT THE THELEPHORACEAE OF NORTH AMERICA. XIV 331 



1873; Peck, N. Y. State Mus. Rept. 30: 48. 1879; 40: 76. 1887; 

 Sacc. Syll. Fung. 6: 633. 1888; Massee, Linn. Soc. Bot. Jour. 

 27: 144. 1890. 



Type : type distribution in Ravenel, Fungi Car. 5 : 30. 



Fructifications widely effused, rather thick, somewhat tuber- 

 cular or rugose, waxy, drying cinnamon to liver-brown and burnt 

 umber and so hard as to require prolonged moistening before 

 sectioning, the margin thinning out; in section 200-400 [l thick, 

 colored like the hymenium, becoming dark vinaceous when 

 treated with potassium hydrate solution, 2-layered, with the layer 

 next to the substratum composed of longitudinally arranged, 

 honey-yellow hyphae 3 (jl in diameter, and with the hymenial 

 layer thicker, denser, darker, and composed of densely inter- 

 woven hyphae and scattered cystidia; no gloeocystidia; cystidia 

 incrusted, conical, 30-45 X 8-12 \l, wholly immersed or pro- 

 truding up to 30 (x beyond the basidia; spores hyaline, even, 

 4-43^ X 2^-3 n. 



Fructifications 1-10 cm. long, 1-4 cm. wide. 



On very rotten wood of frondose species Betula and Populus 

 noted. Massachusetts to Alabama and in Ohio and Idaho. 

 September to November. Rare. 



P. martiana is usually blood-red in color, with substance of 

 the same color, and with surface so tubercular or with so irregular 

 folds as to suggest a Phlebia. It is likely to be confused with 

 Phlebia hydnoidea Schw., from which it is sharply distinct by 

 the more toothed surface and slightly colored cystidia of the 

 latter. 



Specimens examined: 

 Exsiccati : Ravenel, Fungi Car. 5 : 30, type distribution. 

 Massachusetts: Murray (in Curtis Herb., 6251). V 



New York: Ithaca, H. L. Jackson, comm. by Cornell Univ. 



Herb., 18659.; Keene Valley, Adirondack Mts., W. G. Farlow. 

 West Virginia: Eglon, C. G. Lloyd, 02678. 

 Florida: R. Thaxter, U (in Mo. Bot. Gard. Herb., 43934). 

 Alabama: Peters, in Ravenel, Fungi Car. 5: 30. 

 Ohio: College Hill, C. G. Lloyd, 1659. 

 Idaho: Coolin, J. R. Weir, 11116 (in Mo. Bot. Gard. Herb.. 



63251). 



