284 LorENz: REPRODUCTION IN NEW ENGLAND FRULLANIAE 
is more frequent in the dioicous rather than in the autoicous species 
of Frullania. F. eboracensis, F. Brittoniae, and F. riparia are all 
dioicous, as is F. Bolanderi; while F. plana, although autoicous, is 
usually sterile. All the European species of Frudlania, with the 
exception of the recently described F. cleistostoma Schiffner & 
Wollny, are dioicous. 
The writer would express her thanks to Dr. A. W. Evans for his 
kind assistance; and would be glad to examine any further propag- 
ula-bearing material of Frullania, other than F. eboracensis. 
HARTFORD, CONNECTICUT. 
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