NEW AND RARE MOSSES FROM THE WEST OF SCOTLAND 177 



papillae at the lower extremities of cells ; at alar base a 

 longish group of bluntly oblong cells, coloured red below, 

 .OI6-.O25 by .01 -.01 3 mm. It is not necessary to indicate 

 further the differences between the two mosses, as they are 

 manifest enough. 



The next moss has been familiar to me for several years, 

 more especially in the neighbourhood of Glasgow. It was 

 got throughout November of last year in perfect fruit. It 

 differs from Hypnum cupressiforme in several important 

 particulars. 



Hypnum teichophilum. Tufts large, dark-green, prostrate; 

 stems stout, irregularly branched ; leaves large, not divari- 

 cately arranged on stem, but regularly imbricated on its 

 upper aspect and falcate downward, convex, somewhat de- 

 current on stem ; margin plane except in lowest fifth, where 

 it is often seen slightly reflexed, entire except in uppermost 

 fourth, where it is slightly serrulated, nerveless, or obsoletely 

 2-nerved just at base ; alar basal spaces well defined, nearly 

 square or slightly oblong, composed of five to eight perpen- 

 dicular rows, each having five to seven or eight cells, cells 

 square (or slightly oblong), with thickish walls, becoming 

 reddish, but contents remaining colourless or only very 

 sparingly granular, .018-. 02 7 by .01 4-. 021 mm. ; cell above 

 long, narrowly acicular with sharply-pointed extremities, .06- 

 .085 by .OO3-.OO45 mm., a little broader near base ; capsule 

 on a long, reddish, strong seta, oblong, curved, brown ; lid 

 large, conical, terminating in a slender, shortish acumen. 

 Accordingly this moss differs from any form of H, cupressi- 

 forme in its cell formation, both alar and general, in the 

 disposition of the leaves round the stem, in the seta, capsule 

 and lid. 



Dr. Braithwaite, in his work on British mosses, states 

 that the alar cells in H. cupressiforme are typically square in 

 shape. Such is not the case. They are small, oval, and, in 

 much the larger proportion, reddish-yellow as well as darkly 

 granular. 



There is still another moss scattered here and there 



throughout the district of Arisaig, in crevices of rocks, but, 



in two instances, on stones slightly covered with earth. It 



is near Dicranum montanum, but differs in the habitat, in 



63 E 



