Notes on our Hepatice. II. 
The genus Riccia.! 
LUCIEN M. UNDERWOOD. 
€ main purpose of these notes, made in reviewing the 
material that has been accumulating in my, herbarium for the 
last few years, is to call the attention of local collectors to 
American, no, 63, are of this species. R. Watsoni Aust. 
founded on male plants is doubtless the same species, as 
urvey; these are fertile and conform to the type of R. Froséit. 
Specimens from the eastern portion of the range are more 
robust than the mountain forms but the spore characters are 
Similar; they may be characterized as follows: 
. SICCIA FROSTII major, n. var.—Thallus much larger than 
in the type, 3-4 times dichotomously branched, irregularly 
Spreading and somewhat imbricate, the divisions wider, com- 
Monly tinted with purple at the margins.—Banks of Mis- 
Sourt River, St. Charles, Mo. (Demetrio, no. 5); Manhattan, 
Kansas (Kellerman); sterile forms are also at hand from 
Illinois (Woff), mee ‘ 
1 “ RH) 
No. I of this Series is in this journal 14: 191-198. 1888. 
