52 THE JOURNAL OF BOTANY 
attached to submerged timbers of floating landing-stages in the 
River Severn, at Bewdley ; all the plants found here were young, 
and, although they resembled species of Fissidens, I could not make 
them agree with that genus. 
Mr. Bagnall, to whom I sent specimens, determined the plant, 
and his opinion has been confirmed by Mr. Dixon, and also by Dr. 
Braithwaite, who has long regarded this species as one very likely 
to occur in Britain. 
The impression that the plant preferred a matrix of wood led 
me to look for it in similar situations, but an examination of 
Stourport, 84 miles below Bewdley, was without result. At a dis- 
tance of about a mile below Stourport, I, however, succeeded in 
again finding the plant attached to submerged timber, and also to 
stones in the river-bed. Following up this clue, I have since 
the result that I have found the plant in various stages of develop- 
n 
some places specimens were young, and scarcely one inch high, 
forming wide patches ; while the most developed specimens found 
_ in general appearance the species very much resembles young 
plants of Fontinalis, along with which it is often found; when im- 
mersed the much branched floating stems spread out in a somewhat 
spherical tuft, which collapses on being taken from the water: 
abundance that it has long been an inhabitant of the river. 
It seems probable that careful search would reveal the presence 
i and 
The following description is based upon that of Limpricht’s 
Laubmoose ’ in Rabenhorst’s Cryptogamen Flora von Deutschland, 
&e., ed. ii, Bd. iv. Abth. i. 456 (1887) :— 
Gen. Ocropiceras Brid. Spec. Muse. i. 162 (1806). 
Floating flaccid water-plants. Stem without central strand of 
. n-walled tissue, much branched, and with deciduous branches. 
eaves non-bordered, the superior lamina two or three times longer than 
