1918] 
BURT—THELEPHORACEAE OF NORTH AMERICA. X 365 
minate; in structure 30-75 y thick, composed of a setigerous 
layer of densely interwoven hyphae 14 и in diameter and of 
very numerous setae uniformly distributed from substratum 
to hymenium, 36—45 5-7 и, protruding up 
to 30 y, tapering upward, and terminating 
in slender, somewhat curved, very sharp 
ig. tips; spores in spore collection white, even, 
ша ща flattened on one side, 44-54 2-21 p. 
EN Б TES Fructifications 4-144 cm., finally con- 
fluent over areas up to 7X 2-24 cm. 
On bark and decorticated wood of fallen limbs of Thuja, 
Tsuga, and Sabal. Vermont to Florida and in British 
Columbia. August to June. Rare. 
H. tenuis belongs in the group of species with H. corrugata 
and H. episphaeria, from which it differs by occurrence on co- 
niferous substratum, raw umber color, and smaller setae 
and the spores. The cracking of the fructification tends 
toward rectangular areas, as in H. spreta, rather than to 5- 
or 6-sided polygons, characteristic of H. corrugata. 
Specimens examined: 
Vermont: Ripton, E. A. Burt. 
New York: Altamont, E. A. Burt; Adirondack Mts., C. H. 
Peck, type (in N. Y. State Mus. Herb.). 
Pennsylvania: Bellefonte, L. O. Overholts, 3730 (in Mo. Bot. 
Gard. Herb., 55095). 
Florida: Green Cove Springs, Dr. Martin (in Ellis Coll. of 
N. Y. Bot. Gard. Herb., and in Mo. Bot. Gard. Herb., 55004). 
British Columbia: Kootenai Mts., near Salmo, J. R. Weir, 499 
(in Mo. Bot. Gard. Herb., 3916). 
36. H. fuliginosa (Pers.) Bresadola,! Ann. Мус. 1:93. 
1908. . 
Thelephora fuliginosa Persoon, Myc. Eur. 1:145. 1822.— 
Stereum fuliginosum (Pers.) Fries, Epicr. 554. 1838; Hym. 
1 Bresadola states, loc. cit., that H. fuliginosa as understood by him is not H. 
fuliginosa (Pers.) Lév., although both give the same synonymy with the name. 
veillés combination has priority if both authors refer to the same species and 
it precludes Bresadola's later use of this name for a different species: hence, if, 
as Bresadola states, H. fuliginosa sensu Léveillé is distinet from H. fuliginosa 
sensu Bresadola, then Hymenochaete fusca Karsten is the name which shoul 
stand instead of the combination by Bresadola. 
