ON FUNGI PARASITIC ON SCALE-INSECTS FOUND IN FORMOSA. 
79 
Our specimens, which correspond exactly to the description given by 
Ellis and E v e r h a r t, were collected also on Psidium as well as on the 
species of Citrus. In our cases, the fungus is parasitic on scale-insects in 
every instance. 
The stroma is generally dark or black colored on the surface, but this 
colored portion can easily be wiped olf with a wet cloth, exposing a smooth 
amber colored surface. In all our specimens, the fungus is always accompanied 
by a sooty mold, which covers the surface of both leaves and stems to a 
greater or less extent. The blackened color of the stroma, in the present 
case, may be due to the overgrowth of a sooty mold, and not to the color 
of its rind cells. Ellis and Everhart (9) seem to have noticed this 
particular character, when they described the color of the stroma as somewhat 
black (or yellow in a living state ?) 
The marginate character of the stroma is not constant. Among the 
stromata formed on Parlatoria zizyphi infesting Psidium Guyava, the margi- 
nate ones are less than the immaginate, while on those on Citrus, the case 
is just the opposite, the marginate ones being predominent. The marginate 
stroma is generally hemispherical in shape, while the immarginate one is 
mostly depressedly subspherical (PI. VI. fig. 8 - 11). 
The conidiophores are so densely packed together that their mode of 
branching is not easily observable in even a very thin section ; but it becomes 
evident, when such a section is flattened out by a pressure given under a 
cover-glass. The branching is almost in all cases subumbellate, the number 
of the branches varying from 3 to 5. The branches are relatively short 
and of about the same length. They are finely subulate, and 10 - 1 6ju in 
length (PI. VI. fig. 14). 
The present fungus parasitic on Parlatoria zizyphi infesting Citrus 
nobilis was collected also by X i s h i d a (17) in Kagoshima, Kiusiu, in 
May 1903. He gives a short description and figures of the fungus in the 
work cited above. 
