ii2 ANNALS OF SCOTTISH NATURAL HISTORY 



28 by 5 to 7 /A, and with only a few rows of this character 

 in the present instance, while those above are very minute, 

 viz. from 5 to 8 /i, diameter. During a search for additional 

 corroboration of the cell -formation of this moss, I came 

 across specimens gathered on the mainland of Orkney in 

 1886. Although comparatively common there, the most 

 typical tufts were got in a boggy place, which, in such a 

 moist climate, must remain more or less moist throughout 

 the year. The specimens gathered were of much the usual 

 size, but the areolation is quite different and distinct. 



LEFTOTRICHUM INFUSCATUM, ;/. sp. Rather densely 

 tufted, pale green above, rusty red below, from one to three 

 inches in height ; stems strong, simple or sparingly branched, 

 and only sparingly radiculose, undulating, undulations longer 

 than usual ; leaves from a clasping, slightly dilated base 

 with, very often, a projecting bluntish point near the middle, 

 erect in a dry or wet state, longly and narrowly lanceolate 

 subulate, twisted in the upper half, not secund ; central 

 basal cells very long, undulating in outline, narrow, with 

 numerous osculating pores between opposite cells in the 

 lowest third of the leaf, 60 to 90 by 5 to 7 yu,, outwards 

 cells quickly shorter until near the margin, 15 to 20 by 5 yu,. 

 This relationship of the central and marginal cells is retained 

 for more than a half of the leaf, the central cells retaining 

 the cylindrical form far up, although becoming shorter, viz. 

 1 8 to 24 by 4 p, ; nearer the apex the cells are small and 

 oval ; nerve indefinite near base and flat, about 70 p, broad 

 or -i- the breadth of the basal portion, appearing, however, 

 broader in thin cross section, longly excurrent ; margin 

 incurved above base for a considerable distance, plane else- 

 where with rather strong pellucid teeth in upper fourth. 

 Structure of nerve shows much as in Cainpylopus brevipilus. 

 Curiously enough, specimens with the usual minute areola- 

 tion were found close to those described above. 



Last year two new stations for Bryum barbatum were 

 discovered, the one on Craig Chailleach, the other on King's 

 Seat, both in the Breadalbane Range of mountains. Four 

 stations for this Bryuni are now known. The station on 

 King's Seat (discovered by Mr. D. Haggart) was in close 

 apposition to that for another curious Bryum, indeed single 



