92 THE SCOTTISH BOTANICAL REVIEW 



shorter, bluntly oblong, with two to four short rows of cells 

 next margin smaller still, sharply oblong, -016 by '006 mm., 

 but all basal cells becoming hyaline ; upwards cells become 

 gradually shorter and merge nearly transversely into the 

 upper dense, opaque, chlorophyllose, round or roundly 

 quadrate cells, length variable from '009 to •016 mm. in 

 longer diameter, in upper third somewhat smaller, "007-9 mm. ; 

 nerve soon turning brown, firm, solid, breadth near base 

 ■05- "065 mm., a little broader upwards then lessening to 

 acute apex, of dense structure within ; the posterior wall 

 shows a single row of chlorophyllose cells as in the pagina, 

 but nearer the front a row of three largish pellucid cells ; 

 margin of leaf recurved a little more than the lower half, 

 entire; a thin transverse section of leaf shows the margins 

 thickened in a remarkable manner, by a round cluster of 

 cells grouped together without order, in number from seven 

 to fifteen so as to form a thick round club three times the 

 thickness of the rest of pagina ; this thickening is often seen 

 a little below the middle of leaf but smaller. Barren. On the 

 red rock in several places near Gairloch. This moss is rather 

 closely allied to Gr. trichophylla (Grev.). 



Another interesting moss deserves to be recorded, viz. 

 a Bryuni, so closely resembling in size and appearance the 

 greenish forms of B. argenteum that I passed it on more than 

 one occasion without inspection. 



Brynm elegantulum, sp. nov. — Tufts very dense, slightly 

 convex, green above, pale but tending towards a reddish tint 

 below ; stems very slender, about half an inch or less in height, 

 simple or sparsely divided, red and red-radiculose in lower 

 half, to which also minute acutish leaves are attached ; upper 

 leaves rather suddenly enlarged, but still minute, scarcely a 

 millimetre in length, closely arranged and even imbricated so 

 as to form, at and near apex, a rather elongated comal group; 

 such upper leaves are oblongo-ovate, concave, narrowing 

 convexly above to a point, from which arises a- long, slender 

 acumen about one-third the length of leaf proper, or from 

 ■2 to '35 mm. long, terminating acutely and having the same 

 construction as the rest of the pagina, but the cells composing 

 it a little longer ; nerve slender and thin, breadth near base 

 about '03 mm., tapering and ending in the acumen ; margin 



