of the Genus Doassansia , Cornu. 21 
seems to be no distinct layer of fine hyphae about the outside, 
as in the preceding species. 
Spores from freshly gathered specimens germinated on 
being sown in water in October, 1889, and in the same month 
in 1890. Sowings made from fresh material in September, 
1889, and in November, 1890, yielded no result. Neither did 
sowings made from dried material at other seasons. It seems 
as if October were the month in which this species germinates 
in nature. 
The spores germinate in from 36 to 48 hours after sowing. 
The spores swell slightly, a split occurs on one side of the 
exospore, and the endospore protrudes in the form of 
a tube (Figs. 33 and 34). When the promycelium has reached 
a length of about 20^, the small protuberances that are 
destined to become the sporidia appear at the tip (Fig. 35). 
They gradually become elongated (Figs. 36 and 37) until the 
sporidia are fully formed. The sporidia are from five to 
seven in number, 16 ju, to 17/u long and 1-5 j u to 2 [i thick, 
tapering to both ends, and borne in a whorl at the blunt tip 
of the promycelium. As they mature, the contents are with- 
drawn from the promycelium, and septa are formed as in 
D. alismatis. There is, however, no basidial cell left as in 
that species, but the whole of the contents of the promycelium 
finally pass into the sporidia. The latter germinate while 
still attached to the promycelium, and each sporidium pro- 
duces secondary sporidia. Occasionally one secondary spo- 
ridium is produced from a primary sporidium (Fig. 38), but 
more often the secondary sporidia occur in bunches of three 
to seven (Figs. 39 to 42). Other sporidia are in turn produced 
from the secondary sporidia (Fig. 41), and at times still others 
from these (Figs. 41 and 42). The contents are withdrawn 
from the primary sporidia by the formation of the secondary 
sporidia, and septa are formed, as in the case of the promy- 
celium (Figs. 39 to 42). The secondary sporidia drop off and 
multiply on the slide, which soon becomes full of them. They 
do not appear to conjugate. 
As remarked above, this species is in every way distinct. 
