50 BOTANICAL GAZETTE [JANUAR’ 
tened, and vary from are in longest diameter. The : 
wall is reddish-brown and rather thick, the exospore bei 
band, though when young this is entirely occupied by the 
toplasm in its more fluid condition. 
Fischer (7) states that the sporangia of this fungus 
-hever been germinated. The writer was successful in germ 
ing the sporangia abundantly in the many trials made. 
first collected a few sporangia would germinate in each 
after being two or three days in a drop of water; but g 
it took longer and fewer germinated, until after they had 
six to eight weeks indoors they ceased to germinate altoge’ 
. It was found, however, that if the infected leaves were ps 
a small wire cage packed in damp moss and kept in a « 
the sporangia gradually assumed a condition favorabl 
mination when they were placed in a drop of water. — 
. thus kept, even at the end of several months, germina’ 
abundantly. ‘Material, however, that had been placed ou 
_ at the same time in stoppered bottles and exposed to the: 
winter, but not to moisture, did not germinate very well. 
oe! the germinations were made in a drop of water in Van | 
ss cells at the ordinary room temperature. 
. _ The germination is ales to shat pase aie 
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