1897.] Flora and Fauna of Mammoth Cave, Ky. 391 
Harvard University, to whom I am indebted for their deter- 
mination. Among them are Microascus longirostris Zukal, 
Zasmidium cellare Fr., Gymnoascus setosus Eidam, Gymnoascus 
uncinatus Eidam, and several others that were indeterminate. 
There were collected also a probably new Cemansia and Papu- 
lospora, a new Bouderia and two “apparently new species of 
Gymnoascus.” It will be observed at once that many of these 
forms are well known ones, and in explanation of that fact it 
is sufficient to say that all came from the great hall beyond the 
Echo River, which is called Washington Hall, and which is the 
favorite lunch-station of parties on the “long route.” On the 
debris of the lunches, on the chicken bones and half-filled egg 
shells, occurs a wealth of these minute forms. lt would seem 
to be quite clear that they are introduced to this part of the 
cavern with lunches. Their internal distribution is mainly 
effected by means of the “cave rat,” Neotoma magister Baird, 
which is abundant at this locality. These animals drag the 
bones and other remains of lunches to great distances, and 
the spores of the fungi are correspondingly widely distributed. 
One of the most characteristic and marked forms that the 
casual visitor will notice is the widely spreading patches of 
snow-white fungus which covers the boards of bridges and 
hangs in beautiful festoons from timbers, or which spreads over 
a large area of wet earth from some water-soaked board as a 
center, especially in the Labyrinth and in River Hall. Thisis 
Mucor mucedo Linneeus, and is quite abundant. I have seen 
patches extending from an old timber that covered two square 
yards and others which quite covered the walls in some favored 
places. This plant is the most conspicuous fungus in the 
cavern. The others must be looked for especially to be seen. 
At two places in the cave occurs a very abnormal species of 
Fomes ( Polyporus) applanatus Pers., which is certainly introduced 
rom the outside on the timbers on which it is found. The 
original form is illustrated by specimens which, on comparing 
it with the cave specimen, one may note the wide divergence 
from the typical form. Dr. Charles H. Peck says of this speci- 
men: “It is, of course, very imperfectly developed, having no 
hymenium, as is usual when it grows in damp, dark places, as 
