214 BULLETIN OF THE UNIVERSITY OF WISCONSIN. 



BRYUM, p. 223. 



Upper leaf cells rhombic to hexagonal (sublinear in BB. Froudei and 

 angustirete). 

 Plants not from stolons. 

 Cilia none, or inappendiculate .... §1. Cladodinm. 



Cilia 2-4, appendiculate §11. Eubryum. 



Plants from stolons §111. Rhodobryum.. 



Upper leaf cells linear (1 : 10-15), branches julaceous §IY. Anomobryuni. 



§1. Cladodium. 



A. Autoicous. 



Leaves broad (1 : 2) costa vanishing . . . B. calophylluin, 227^ 

 Leaves ovate-lanceolate or long acuminate. 



Cilia 2, long, smooth B. Brownii, 224. 



Cilia 3, short B. mamillatum, 288.. 



Cilia none, or rudimentary. 



Capsule symmetric, pyriform, coUum J^ sporangium. 

 Leaves faintly bordered, serrate above, slightly 



revolute B. Warneum, 226. 



Leaves faintly bordered, margin entire, distinctly 



revolute B. EdwardsiaDnm, 291. 



Leaves very distinctly bordered, broadly revo- 

 lute B. Biddlecomiae, 226. 



Capsule usually unsymmetric, elongate, collum = 



sporangium B. uliginosum, 227. 



B. Synoicous, or heteroicous. (C) 



Costa long excurrent. 

 Endostome attached to peristome. 



Spores verruculose B. arcticnm, 224. 



Spores smooth, about 30/^ . . . . B. pendulum, 225. 



Spores smooth, 20-25/^. 



Teeth orange red B. angustirete, 284. 



Teeth pale B. Roellii, £8S. 



Endostome free, or slightly attached. 

 Seta 3-4 cm. long, capsule 1 : 2.5-3. 

 Upper leaf cells long hexagonal . . B. inclinatura,i 225. 



1 B. stenotrichum C. MiiU. will be sought here ; and I am unable from the description 

 alone to discover any essential difference between it and B. inclinatum. See Appendix^ 

 no. 290. 



