42 MurriLL: POLYPORACEAE OF NortTH AMERICA 
Bull.) [Polyporus varius (Pers.) Fr.], and some European my colo- 
gists go so far as to say that P. elegans and P. Calceolus are the 
same thing; but field studies in Sweden have convinced me that 
we have nothing in America to correspond to B&. Calceolus of 
Bulliard, whose description and figure of this species may be easily 
matched with European specimens from either field or laboratory, 
while even our most closely allied Canadian forms of P. elegans 
fail to connect with the European relative. 
The variety first described as B. nummularius by Bulliard is 
quite distinct from the typical form when seen in the herbarium, 
but when both are picked from the same branch in the woods the 
differences speedily become of minor importance. In the follow- 
ing partial list of specimens examined, no distinction is made be- 
tween the two: Tyrol, Bresadola; Finland, Karsten ; Canada, 
Macoun, Dearness ; Vermont, Burt; Maine, Ricker, Miss White ; 
Connecticut, Earle ; New York, Underwood, Cooke, Lobenstine ; 
New Jersey, Ellis ; Ohio, Morgan ; West Virginia, Nuttall ; Michi- 
gan, Ward; lowa, Holway; Colorado, Bethel, Crandall ; Wash- | 
ington, Piper, Parker. 
23. PoLyporus Fissus Berk. Lond. Jour. Bot. 6: 318. 1847 | 
Polyporus trachypus B. & Mont. Syll. Crypt. 154. 1850. 
Both of the above names were assigned to plants sent from 
Ohio. Those sent by Lea were small and undeveloped and one 
or two were accidentally lobed. The tubes were so small as to 
be overlooked and he labelled them Zhelephora. The collection 
made by Sullivant at Columbus was evidently described by Mon- 
tagne. The description is accurate and quite complete. The 
reason why neither of these names has come into common use iS — 
due to the fact that our plant was at first miscalled P. picipes, @ _ 
name given by Fries without good reason to plants of P. calceolus — 
having particularly black stems. This latter species, so far as We — 
are aware, does not occur in America, but American specimens at ‘ ? 
Kew are labeled P. picipes Fr. In the herbarium of Fries at 
Upsala there is only one specimen of “ P. picipes” from North — 
America and that is determined by Ellis. For our common - 
species, then, which has been so generally known as P. picipesy 
we must make use of Berkeley’s name. 
