THE STUDENT'S HANDBOOK OF BRITISH MOSSES 277 
the identification of his plant. The excellent illustrations by Mr. 
ameson give magnified representations, not only of the leaf, but 
also of the leaf apex and leaf cells; and, as all these are drawn to 
are given of the mosses discovered since the former edition was pub- 
ished; these are by Mr. Dixon, and have all the exactness and 
excellence ie the earlier plates 
n page 4, Mr. Dixon 88 a note explaining his reasons, after 
careful comliivetion, for not adopting the views of Dr. Warnstorf 
n 
to the Sphagnacee, and the varieties of S. te are more fully 
treated; an informing note is given on S. Girgensohnii Russ 
S. riparieere is pe ea subspecies of S. intermedium, and “insteations 
are given of S. medium and S. riparium. Several of the varieties of 
8. pestpolicen are dropped, such as S. tenellum, S. elegans, S. de- 
flexum, S. arctum, and S. i the reason for this being fully 
explained in a note under the species. Catharinea tenella, one of 
the new mosses from Kent, is described and figured. Oligotrichum 
incurvum gives place to the older name QO, “hereynien um, Under 
olytrichum nanum, P. aloides, P. gracile, _— ni formosum, attention 
is called to the difference i in the size of the spores—a character often 
D, pellucidum. To eae Schwarzit is added a new variety, 
Hunti, found by G. E. Hunt on Snowdon ; to C. fleauosus is added 
the rare variety zonatus Limpr.; and to C. atrovirens ps var. gra- 
Under th first published in this. Journal for 1902, p. 8 
n 
{Site the var, rugifolium Bos. is adopted, I think with 
reason ; the varieties flexicaule and robustum of D fuscescens are 
merged i into var. cong engeatir from which they differ only i in me gee rec 
sharia ters. A new record—Roslyn Maes Edinburgh—is 
for the rare D. ri ictum; to this I may add another—near Droit. 
wich, Worcestershire. Fissidens dace indifolius is reduced to a 
variety of F. incurvus. Octodiceras Julianum Brid. is recorded as 
a new species from Bawilleys ; it also occurs higher up the river 
Severn, in Shropshire 
he: apocarpa i S @ new variety, alpicola, found on 
stones in Pissie: G. aolaita Hampe, first found by Dr. Barker 
in Merionethshire, is placed as a subspecies under G. orbicularis - 
this is described and net red, An interesting note on Acaulon 
seed ieerene Limpr. gives good reasons for omitting it from our list. 
variety, littoralis Mitt., of Pottia intermedia is admitted ij 
deference to some of. Mr, Dixon’s correspondents; P. commiitata 
