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Fig. I. 
FIVE COMMON CEPHALOZIAS. 
Helen E. Greenwood. 
Since the identification of the different species of the genus Cephalozia 
sometimes presents difficulties to the student beginning the study of 
Hepatics, the accompanying photo-micrographs ^ have been made to bring out 
by comparison the more striking characteristics of each species, especially in 
regard to shape of leaves, and their method of attachment to the stem. Only 
the more common forms, those that may be found on every collecting trip, 
have been figured here. 
The Cephalozias are characterized by their small size, delicate structure, 
the tiny plants having leafy stems, the leaves being more or less round-ovate 
in shape, and being two-lobed or deeply cleft from one-fourth to one-half 
their length. They may be found on shaded banks, on damp soil, decaying 
wood, swampy ground, or growing over mosses or other hepatics. 
1 These photo-micrographs were taken by the writer in the Biological Laboratory 
of Clark University, through the courtesy of Dr. C. F. Hodge, Professor of Biology. 
