884 THE JOURNAL OF BOTANY 
margins, scabrous at back with long ee Me 
pr will = seen to apply equally well to M. Careyana, the 
the poin ) meet, such as are very frequent in 
Bartramiacee, not, usual, arising from the face of the cell. In 
M. Careyana they tuated centrally or nearly so on the face of 
ot 
simply a difference in position, and therefore must be allowed some 
weight. 
The central papille of M. Careyana are plainly visible by 
seanaelig ihe back of the leaf vith a fairly high objective; and 
= differently placed papille of M. julacea can also be observed, 
with a little more difficulty, by careful focussing under a high 
pow Cutting a transverse section of the leaf is perhaps a more 
catehocly, tg a more lengthy process 
ere appears to be a fairly unbroken chain of forms in the 
var. scabrifolia, from those nearly approaching the type to such 
marked forms as 8 described above, similar in almost every 
respect to M. Car 
It is curious a this variety, not hitherto recorded from Great 
Britain, should have been gathered on Ben Lawers by three separate 
collectors independently within a space of less than a fortnight. In 
each case only a few stems were found interwoven among other 
mosses. 
Psgupo.EskEA aTrovireNs B, & §. and P. parens Limpr. In 
1790 Dickson published his Hypnum atrovirens, founded upon 
a specimen from Scotlan Bruch and Schimper created the 
genus Pseudoleskea in 1852, to include H. atrovirens Dicks. and 
H. catenulatum Brid. In 1880 Lindberg described his Leskea patens 
from Norwegian specimens, afterwards transferring it to the genus 
Lesquereuxia. Limpricht recs this also to Pseudoleskea. 
ut a year ago Dr. Best, of Rosemont, New Jersey, who has 
been engaged in a revision of the North American Leskeacez,* sent 
me specimens of two or three Scotch plants, distributed under the 
name of H. atrovirens Dicks. by Wilson, Greville, &c. These clearly 
belonged to two distinct species, characterized by the form and 
direction of their leaves, the form of the cells, eae the position of 
this was written Dr. Best’s Revision has been published in Bull, 
Raseer 3 Bot. Club, May, 1900, 
