1920] l 
BURT—THELEPHORACEAE OF NORTH AMERICA. XII 205 
Wholly resupinate specimens have merely a superficial resem- 
blance to Peniophora, for they are loosely attached to the 
substratum by the layer of loosely arranged, coarse hairs which 
forms the strigose covering of the upper surface of a reflexed 
specimen; the intermediate layer is well developed in resupinate 
specimens, and the cystidia and spores are the same as in reflexed 
specimens. It is surprising that a species so common and so 
marked in its microscopical characters should have seemed new 
so many times. 
Specimens examined: 
Exsiccati: Bartholomew, Fungi Col., 2337, 4648; Ell. & Ev., 
N. Am. Fungi, 2314, type distribution of Peniophora occi- 
dentalis; Shear, N. Y. Fungi, 313. 
Canada: J. Macoun, 45, 68, and another specimen comm. by 
J. B. Ellis, under the name Peniophora occidentalis; Lower 
St. Lawrence valley, J. Macoun, 33, 34, 79. 
Quebec: Hull, J. Macoun, Nat. Hist. Surv. of Canada, 359, and 
J. Macoun, 52; Ironsides, J. Macoun, 282. 
Ontario: Guelph, J. H. Faull, Univ. Toronto Herb., 669 (in 
Mo. Bot. Gard. Herb., 44916); Jefferson, G. H. Graham, 
Univ. Toronto Herb., 673 (in Mo. Bot. Gard. Herb., 44922) ; 
Ottawa, J. Macoun, 284; Toronto, J. H. Faull, Univ. 
Toronto Herb., 651 (in Mo. Bot. Gard. Herb., 44947). 
Vermont: Middlebury, E. A. Burt, six collections. 
Massachusetts: W. G. Farlow, two collections. 
New York: Alcove, C. L. Shear, 1312, and in Shear, N. Y. Fungi, 
313; Cayuga Lake Basin, G. F. Atkinson, 3020, 8023, J; 
Greenbush, C. H. Peck (in N. Y. State Mus. Herb. and 
Mo. Bot. Gard. Herb., 56020); Ithaca, C. J. Humphrey, 
261, and a specimen comm. by G. F. Atkinson, Van Hook, 
comm. by G. F. Atkinson, 7988; Knowersville, C. H. Peck 
(in N. Y. State Mus. Herb. and Mo. Bot. Gard. Herb., 
55755); Syracuse, L. M. Underwood, 5 (in N. Y. Bot. Gard. 
Herb. and Mo. Bot. Gard. Herb., 56709); Verona, C. H. 
Peck, type of Stereum neglectum (in N. Y. State Mus. Herb., 
and perhaps a duplicate in Mo. Bot. Gard. Herb., 55754). 
Pennsylvania: Bethlehem, Schweinitz, type (in Herb. Schweinitz, 
Curtis Herb., and Kew Herb.). 
South Carolina: Curtis Herb., 5997, type of Stereum moricola 
(in Kew Herb.). 
