90 THE JOURNAL OF BOTANY 
I, Unilocular sporangia, which form 
ormal zoospores 
b. Aplanospores. 
ce. Monospores (Alinetes) (?). 
II. Plurilocular sporangia, which form 
Gamet 
a. No rmal male and female. 
b. Réutfal swarm-spores. 
a. Normal. 
. Aplanospores. 
Traly a formidable list for one filamentous alga! As the author 
says, the forms of reproduction adopted by eac ach species in real life 
epend on its inherited peculiarities, and still more on outside 
influences. Meantime it is of interest to Give & summing-up of al 
possibilities even in our present state = fragmentary knowledge on 
the subject: it forms at least a framework into which "heal facts 
can be weaved, though the vacetigrentig itself should at times have 
to undergo slight alteration. 
—whie i ication on this subject 
embodies the results of his investigation of Acinetospora pusillus 
B e germination of zoospores from both uni- 
gia is described and figured. Besides these 
orms of reproduction, there is a ak which has been described 
as occurring in Tilopteridacee and in Heterospora Vidovichiti—mono- 
sporangia. These bodies are minutely described by . Sauvageau, 
a figures Bante bearing ee as well as various stages 
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once more to propagation by cuttings among 
Pheosporea, and states that in this respect Acinetospora shows great 
facility, acai when the cutting is taken from a plant bearing 
pseudosporan 
The 
