CHAPTER XXVI 
THE BRYOPHYTES 
341. Classes of Bryophytes. — The bryophytes, or moss- 
like plants, are divided into: 
Cxass 1. Liverworts. 
«2, Mosses. 
It is not easy to state in an untechnical way all. the 
distinctions between the two classes. One main difference. 
is that most liverworts either show no distinction between 
stem and leaves, or if they possess leaves at all do not have 
Fig. 188. Ricciocarpus, an Aquatic Liverwort. 
A, whole plant, gametophyte (natural size); B, one lobe showing 
a few rhizoids, ,. (Somewhat magnified.) 
them arranged spirally. Moss leaves are borne in spiral 
rows. The whole plant body of the liverworts has an upper 
and an under side, while that of the mosses does not. 
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