The Botanical Gazette. [March, 
92 
tion by Dr. Rex, and are almost exactly similar to the mater. 
ial distributed as no. 2,496 of the North American Fungi. 
Dr. Rex has given an excellent account of the species in 
the proceedings cited above. The only station knownat that 
time was in the Adirondack mountains. Whether additional 
ones have been discovered since, I am not able to state 
This is a fine species, distinguished among the Trichias by 
the stipitate checkered sporangia, the spinulose cylindrical 
elaters, and the warted spores. ‘a 
Il. Germination of Enteridium Rozeanum. 
ENTERIDIUM ROZEANUM (Rost.) Wing. —lIt is my purpose 
in this part to present some of the results of studies upon the | 
swarm-cells of Enteridium Rozeanum. These investigations 
were undertaken during the winter of 1893,as a part of somespe | 
cial work upon the group of organisms to which this plant be 
longs. The material from which the cultures were ma ewe 
collected from an old log on Fall creek flats, an extensiit 
swamp at the head of Cayuga Lake. The plants were four 
about the middle of October, 1892, and put away in ay 
place. In December, the germination of the spore ot 
large number of species collected during the fall was 1® 
but those of Enteridium were the only ones which snow” 
any signs of germination. I considered myself fortunate ® 
have succeeded even so much, for the difficulties in the Wil 
of germinating the spores of Myxomycetes are well know! — 
As is the case with many fungi, myxomycete spores F 
quire a period of rest before germination wi yet 
The length of this period seems to vary, not only acc? 
to the species, but also according to the conditions ! 
which the spores are kept. Fully as important 4 re 
tion is the medium in which the germination is 
The method of culture which I employed was 
known moist chamber formed from several thickness* 
ter paper, wet with distilled water, sustaining 4 ald 
upon which, in a hanging drop of water, the spores 
sown. The best temperature for germination seems 
about 70° F. oe 
When about to germinate, the spore absorbs wae 
protoplasm swells, rupturing the wall of the spore the 
side. Through the V-shaped opening thus made 7 
cleated protoplasm flows or streams out in @ ne ae 
figs. 6, 7,8). After leaving the spore the protoplas™ . 
