88 Journal of the Mitchell Society. [ June 
A medium which we called C. B. A., Chemical Base Agar, 
was made as follows: Water, 1000 grams; Di Potassium- 
phosphate, 2.5 grams; Calcium Chloride, 01 gram; Magne- 
sium sulphate, 01 gram; Sodium Chloride, 2.5 gram; Potas- 
sium sulphate, 2 grams; Agar, 15 grams. 
To this was added Sodium Aspariginate in one case; So- 
dium Aspariginate and Starch in another; Sodium Asparigi- 
nate and glucose in another, and one or two others. Four 
per cent. Pea Agar and Apple-twig Agar were also used. 
On the Pea Agar the Mycelium was white with very few 
pink spots; upon the Apple and Apple-twig Agar the Myce- 
lium was orange yellow with abundance of pink spots. Upon 
C. B. A. and N. A. S. and N. A. G. the Mycelium was white 
but with a large number of large pink spots. In all cases 
spores were formed in equal abundance and they were most 
numerous near the point of inoculation. 
The third and last species belongs to a very different group 
of fungi, the Pyrenomycetes, which has its spores borne in 
sacs (asci) within closed or nearly closed conceptacles called 
perithecia. In ’giving the systematic position of this species, 
I shall follow Ellis & Everhart’s North American Pyrenomy- 
cetes. 
This is a new species of fungus, but I hesitate to give it a 
name because of the scarcity of material. It is one of the 
Genus Podospora, in the family Sordaieae, which is one of 
the sub-order Sphaerioceae. 
The perithecia are borne singly and scattered, are black 
and flask-shaped. The asci are clavate and bear the eight 
spores which are the distinguishing feature of the plant. 
They are dark, elliptical, and are joined by a filament into 
pairs. 
So far as I have been able to learn, there is only one species 
that approaches this in any way, and that is Podospora zygos- 
pora, in which the spores are similarly joined in pairs, but 
the thread joining each pair is septate, while in this one 
there are no septae in the connecting thread. 
