58 
NEW ARRANGEMENT OF 
three years ago, we spent some days in examining without 
success. Since that time, however, this plant has been 
rediscovered by our friend the Reverend J. S. Tozer, 
who finds it on hedge-banks by the side of the Kings- 
bridge Road, a few yards after leaving the old road from 
Totness to Plymouth ; also near the village of Harberton, 
about two miles and a half from Totness ; and near Chel- 
will, in the same parish. He has likewise a fourth station, 
at Meavy Parsonage, near Horrabridge. Mr Tozer also 
writes, " I have invariably found it in the hollow moulder- 
ing part of our high hedges, the earth of which as the 
summer advances scales oflP, and renders it difficult to de- 
tect at that season of the year." Smith's account agrees 
well with this : " In cavitatibus aggerum, sub sepibus ve- 
tustioribus, solo pingui 
Hist. This moss was first described by Dickson 
under the name of Mnium osmundaaeum. Hedwig very 
soon afterwards published it in his " Stirpes" as a Gymno- 
stomum^; and Ehrhart, about the same time, as DicJcsonia 
pusilla, in his " Plants Gryptogamse." It was still con- 
tinued, however, as a Gymnostomum (G. pennatum) by 
Hedwig in the Species Muscorum, and by ScHWiEGRi- 
CHEN in the Supplement. Mohr, in 1803 and in 1807, 
conjointly with Weber, made a distinct genus of it, on 
account of the remarkable operculum, and named ii Schisto^ 
stega^ a genus which is retained by the authors of the 
British Muscologia. Hedwig, in his Stirpes already 
quoted, thus describes the operculum : " Non integrum, 
sed de summitate in lacinias irregulares illico sese revol- 
• Fl. Brit. p. 1161. 
% Vol. i, p, 77. t, 29. 
t Crypt. Fasc. i. p. 3. t. 1. f. 4, 
