1146 Wisconsin Academy of Sciences , Arts, and Letters. 
Description of the Species. 
1. FASCICULARIA. 
THE HYPHOLOMA SUBLATERITIUM GROUP. 
The group contains five closely related European species all 
of which have been reported from the United States': Hypholo- 
ma sublateritium, Hypholoma capnoides, Hypholoma epixan- 
thum, Hypholoma elaeodes and Hypholoma fasciculare. 
Dr. Peck added his own Hypholoma perplexum to the list 
and gave a key to the species in U. Y. state Mus. Mem. 4. He 
based the principal division on taste but the taste test is not 
to be relied on. Peck himself says in later reports that Hypho¬ 
loma suhlateritium is often mild tasting and Bresadola reports 
the same of that species in Europe. In his summary of the 
Hew York species of Hypholoma, U. Y. state Mus. Bull. 150, 
Peck reports only three species, Hypholoma, sublateritium, Hy¬ 
pholoma perplexum and Hypholoma capnoides. 
Mcllvaine in One Thousand American Eungi includes all the 
species but speaks of them as confused and perplexing. 
As far as our collections go the distribution of species appears 
to be about as follows: 
The small plants with yellow caps tinged with red found in 
clusters on coniferous logs in the northern woods are Hypholo- 
mai capnoides. Dr. Peck limits the species in the same way. 
The plants agree with Cooke’s Illust. 559, but are smaller than 
the descriptions call for and as some writers make Hypholoma 
capnoides a variety of Hypholoma sublateritium, observers 
should watch for forms more nearly resembling that species. 
Hypholoma fascicular© is found on th© Pacific coast where 
it appears to take the place of Hypholoma sublateritium 
with us. The latter species is not found there so far as w© 
have seen. Mur rill does not report it among the Agaricaceae 
from the Pacific coast. Hypholoma faaciculare was identified 
by Berkeley from early collections in Ohio, but Dr. W. G. 
Stover informs me that he does not think it has been confirmed 
in recent years. 
