116 
large pits, "ani it is through. thésé pi its, which | are opposite to each 
other in contiguous bn that the hyphz pass from one cell to another, 
becoming very much attenuated in the pit and eae again at once 
es the normal width on entering the cell. I did not sue vtm in 
thick, and sharply define the pycnidium from the stroma in which cea is 
to a great extent immersed. Proceeding inwards the walls bee 
colourless, very thin, and the cells are filled with granular, vucualatod 
protoplasm; the innermost layer gives origin to the slender 
phores, which vary in length, and produce at their tips the elipti 
o MÀ gonic : measuri ng 14-16 x 6-7: The gonidia at 
y: í 
ruptared: by heme upward dovetopiadsitiel the stroma and the e gonidia ooze 
out of the pycnidia in the form of mucilaginous tendrils, which forms 
the pale yellow waxy masses on the surface leaf, as already described. 
The clusters of pycnidia are small at first ; but the stroma continues to 
grow and increase its area for some time, at the same. time producing 
pycnidia from the newer peripheral portion ; — is no ; téndeney 
a 
develop into much-branched septate : hyphæ, the cells nearest the 
ae becoming swollen into a broadly elliptical or globose form and 
bei 
presenting a moniliform appearance, due to being constricted at the 
septa; no further development took place, and at length the mycelium 
died. In a nutritive solution development commences as above; bu 
ranches, a r (growing nd ina Feigica manner 
that originates from the mycelium. At first the stroma has a well- 
defined outline; but eventually the external cells of the basal half 
nearest the stem-like base grow outwards as blunt papille; these 
elongate directly into septal branched hyphz, which radiate from the 
stroma on every side and pass directly into the nutritive solution for the 
purpose of supplying the developing stroma with nutrient material. In 
