42 
F. Cavers. 
X. CLASSIFICATION OF THE BRYOPHYTA. 
Since various modifications in the generally accepted classifi¬ 
cation of the Bryophyta have been suggested and discussed in the 
preceding pages, it will be convenient to set out here a table 
showing the proposed divisions of this phylum, with an enumeration 
(except in the case of the Eu-Bryales) of the families included in 
each of the ten divisions (Orders). The characters of these ten 
divisions have been given in some detail already, and are therefore 
not repeated here. 
I. Sphaerocarpales. 
Sphaerocarpaceae.— Sphcerocarpus, Geothallus. 
Riellaceae.— Riella. 
II. Marchantiales. 
Ricciaceae.— Riccia, Tesselina. 
Corsiniaceae.— Corsiuia, Boschia. 
Targioniaceae.— Targionia, Cyatliodimn. 
Monocleaceae.— M onoclea. 
Cleveaceae (Astroporeae).— Clevea, Sauteria, Peltolepis, 
Gollaniella. 
Aytoniaceae (Operculatae).— Plagiochasina, Reboulia, Nee- 
siella, Cvyptomitrium , Grimaldia, Massnlongoa, Fim- 
briaria. 
Marchantiaceae (Composite).— Exonnotheca, Fegatella, 
Wiesnerella, Dumortiera , Monoselenium, Luuularia, 
Pi 'eissia , Bur.egia, Mavchantia, 
III. Jungermanniales. 
Aneuraceae.— Aneura, Metzgeria, Podomitrium , Umbm- 
culum. 
Blyttiaceae.— Blyttia, Morckia, Syinphyogyna, Makinoa. 
Codoniaceae.— Pellia, Calycularia, Blasia, Cavicularia, 
Noteroclada, Petalopliylluni , Fossombronia, Treubia. 
Calobryaceae.— Calobryum, Haplomitriuni. 
Lophoziaceae. 
Cephaloziaceae. 
Ptilidiaceae. 
Scapaniaceae. 
Radulaceas. 
