1920] 
BURT—THELEPHORACEAE OF NORTH AMERICA. XII 157 
which the fructifications are still with a resupinate portion but 
with the umbos distinctly outlined, and exactly agree in all 
respects, even including spore dimensions, with my Vermont 
collections of the same stage. The authentic specimen of 
Thelephora ostrea from Java is in the final stage with attachment 
by umbo only and is clothed over its whole upper surface with a 
thick coat of tomentum, and matches well most of the specimens 
of the type collection of Stereum fasciatum in Herb. Schweinitz. 
I infer from the lack of specimens of S. fasciatum from the East 
Indies and the Philippines in published exsiccati, that this 
species is very rare there and that what frequently has been 
listed as S. ostrea is really the very common S. concolor instead. 
Schweinitz's original description of S. fasciatum presents at 
such length the disappearance of tomentum from the upper 
surface of the pileus and the broad, glabrous, shining surface 
with many vari-colored zones, that it seems probable he may 
have intended the description to comprehend not only S. fascia- 
tum as treated by me but also S. lobatum, which he must have 
seen about him in North Carolina; nevertheless, the ample 
collection of specimens in Herb. Schweinitz which were preserved 
as the type of S. fasciatum contains no fructifications referable 
to S. lobatum. 
Specimens examined: 
Exsiccati: Bartholomew, Fungi Col., 2590, under the name S. 
versicolor, 2884, under the name S. versicolor, 2985, 3985, 
4291, and 4986; Ellis, N. Am. Fungi, 18, under the name 
S. versicolor v. fasciata, 514a, and e, both under the name 
S. versicolor; Ell. & Ev., N. Am. Fungi, 1714, under the 
name S. purpureum; Ellis & Ev., Fungi Col., 306, under the 
name S. versicolor; Ravenel, Fungi Am., 220, under the 
name S. versicolor, and 721; Smith, Central Am. Fungi, 
145, under the name S. versicolor; de Thümen, Myc. Univ., 
2011, mixed with S. lobatum. 
Norway: Bosekon, Finmark, M. N. Blytt, type of Stereum 
arcticum (in Herb. Fries). 
Sweden: on Alnus, North Sweden, comm. by L. Romell, 400. 
Canada: J. Macoun, 12. 
Prince Edward Island: J. Macoun, 346 (in Macoun Herb.). 
Quebec: J. Macoun, 77, 239, 249, 464 (all in Macoun Herb.) 
