46 TRANSACTIONS OF THE [Sess. lxxvi. 



around stem, spreading slightly and straight when 

 moistened, narrowly ovate lanceolate, ending in a broad 

 apex, latit. *07-*l mm., surmounted by a broadish hyaline 

 hair tapering to a point, sparsely spinulose, variable, from 

 a third to nearly as long as the leaf proper ; nerve narrow 

 below ("04 mm.), widening somewhat upwards, then narrow- 

 ing to summit, pale then copper-coloured ; margin entire, 

 recurved in lower half, plane afterwards, the other margin 

 quite plane throughout, the upper half thickened by two 

 couples of transverse cells and towards apex interruptedly 

 bistratose throughout; cells in four to six short rows at 

 inner base narrow, cylindrical, separate (especially later- 

 ally), , 04- , 07 by "004-6 mm., slightly granular, ultimately 

 pellucid, outwards becoming (rather abruptly) nearly 

 elliptical, dark, opaque, and granular outwards to recurved 

 margin ; on the plane margin two to five short rows 

 hyaline, sharply oblong, close, -013-02 by '007-9 mm., up 

 from base cells very irregular in size and shape, barrel- 

 shaped or only irregular in outline, and slightly narrower 

 than those at base but of the same length, or cells merely 

 round but more of such nearer apex and nerve ; only four 

 capsules in a young state were found ; seta pale, short, 

 straight or slightly bent, about a third of an inch long ; 

 capsule elliptical, rugose ; lid and teeth red, short, pointed ; 

 acumen short, blunt, red, not more than a fourth the length 

 of capsule. 



There is another moss rather closely allied to the preced- 

 ing, but as it presents one strange peculiarity such as I 

 cannot recall having ever seen previously, I consider it right 

 to describe it here. 



Grimmia undulata, sp. nov. — In rather dense convex 

 tufts of a dark-green colour above, becoming darker in the 

 herbarium, ultimately assuming a dingy brown in the lower 

 half ; stems slender, about an inch long, simple or slightly 

 branched ; leaves laxly arranged around stem, nearly 

 appressed, with the longer hairs everted ; when moistened 

 spreading somewhat, straight and slightly undulating, re- 

 maining attached to the stem nearly to base, long, slender, 

 ovate lanceolate, acuminate, terminating in a slender hair 

 very variable in length, from a mere point below to about 

 half the length of leaf above, slightly spinulose ; cells at 



