TAKEWO HEMMT 275 
flesh color. The mycelial growth is apt at first to be closely limited to a 
small area, whence it spreads toward the margin of the medium. Although 
such cultural media containing agar are prone to become darkened by the 
fungus growth, beginning from the margin and spreading toward the center, 
it is not so conspicuous as with Valsa Mali on the same medium. But Valsa 
Pauloivniae never causes darkening of the same media and the mycelium is 
apt to extend loosely over its whole surface, without making any cottony 
growth on a small area. None of these three fungi seems able to dissolve 
the agar. 
The present fungus and Valsa Mali do not produce any spores on those 
cultures, though only on pear juice agar and gelatine were produced the 
mycelial bunches which have somewhat the appearance of the stromata. But 
Valsa Pauloivniae produced numerous stromata and greenish black masses of 
pycnospores throughout the surface of apricot-juice-agar cultures. 
(5) Fruit-Juice Gelatine. 
Cultures containing gelatine showed at first the same color and mode of 
the growth of the mycelium, but at last the color turns a deeper yellow than 
in the case of the agar. The gelatine is more or less dissolved and becomes 
darkened by the growth of any of these three fungi. 
(6) Corn-Meal Agar. 
This medium was used by the author as the standard medium of the 
tannic acid cultures, which will be described in the following chapter. Cultures 
containing no tannic acid showed a vigorous growth of the mycelium, which 
was, however, very loosely entangled, continuing as the aerial mycelium, and 
the growth of the fungus caused no darkening of the medium. Although the 
color of the mycelium is white for a long time on the plane cultures in the 
Erlenmeyer's flasks, the slant cultures of the same medium show a very light 
yellow color after three months and in a few tubes appear the round bunches 
of mycelium, turning into the compact stromata. But even after a period of 
