56 a [ AsseMBLY, 
determinate: verrucae minute, subdistant, at first a limpid globule 
resting on the subiculum, then slightly prominent, papilliform, 
colored like the subiculum and crowned with a limpid globule 
which varies in color trom hyaline to amber. 
Decorticated wood of poplar, Populus tremuloides. Elizabeth- 
town. September. It forms patches several inches in extent. It 
is apparently related to P. /riestz, but it is not membranous, the 
warts are colored like the subiculum and are not immersed in it. 
THELEPHORA DENDRITICA, Berk. 
Overspreading the hymenium of effete Polyporas applanatus. 
Adirondack mountains. September. 
STEREUM ABIETINUM, Pers. 
Prostrate trunk of spruce, Abies negra. Cascadeville, Adiron- 
dack mountains. June. ft 
Our specimens agree with the description of the species to 
which we have referred them, but they present some interesting 
characters not mentioned in that description. It often happens 
that great perplexity arises because of the incomplete descriptions 
of some of the older authors. A careful examination of our speci- 
mens shows the presence of both sete and metuloids, the latter 
much more numerous than the former. Thus this species does for 
Stereum, Hymenochete and Peniophora what Dedalea confragosa 
does for Deedalea, Trametes and Lenzites,as was shown in the 
thirtieth report. It sets at naught the characters used in dis: 
tinguishing these genera, and bids defiance to the generic limits 
assigned in the botanies. To the naked eye, the hymenium in our , 
specimens has a somewhat ‘velvety pruinose” appearance, but 
when examined by the microscope it is found to be abundantly 
furnished with projecting setiform bodies, some of which are 
smooth and colored, as in Hymenocheete; others are colorless and 
rough or minutely warted, as in Peniophora, Sometimes a single 
one is colorless and warted in the upper part, colored and smooth 
in the lower. And as if this was not enough of confusion to our 
former notions, the hymenium, though dry, becomes rimose as in 
many species of Corticium. The fungus sometimes forms patches 
several inches in extent by the confluence of individuals. It is 
nearly or quite one line thick, the intermediate stratum being 
