1 76 ANNALS OF SCOTTISH NATURAL HISTORY 



smooth, inflexed in the upper two -thirds, to the extent, in the 

 middle of the leaf, of 35, deeply cucullate at the apex with fre- 

 quently a thin horizontal band connecting the apical margins ; 

 nerve pale yellow then reddish, breadth near base, 70 to 90, 

 tapering, smooth on the back and prominent, slightly excurrent in 

 a stiff mucro, but not always ; areolation at central base and 

 considerably outwards pellucid with double thin walls, or presum- 

 ably in two layers of cells, 18 to 32 by 10 to 16, smaller outwards, 

 gradually lessening upwards and ending transversely, the slightly 

 clasping portion occupying about one -fifth length of leaf; upper 

 cells opaque but fairly distinct, 8 to 12 diameter. This moss can 

 only be associated with M. crispula, but the differences are 

 manifest. 



There is a slight doubt as to the habitat, but it was either picked 

 up somewhere in the Clyde basin or on Ben Lawers ; more probably 

 on the latter. 



MOLLIA TERRENA. Rather loosely tufted, dingy yellowish-green 

 above, brownish-black below ; stems from i to i \ inch long, simple, 

 at times dichotomously branched ; leaves loosely set, somewhat 

 longer near and at apex, fragile, crisped when dry, widely spreading, 

 even recurved when moistened, from a clasping, somewhat broader, 

 pellucid base, broadly oblongo-lanceolate, apex rather suddenly and 

 convexly narrowing to a broad blunt apiculus (breadth about 65), 

 which is often serrulate ; margin plane, but somewhat incurved near 

 the apex ; coarsely crenated by projecting cells of a single marginal 

 row, the longer diameter of which is set transversely, also distantly 

 but distinctly serrate nearly throughout ; nerve narrow, breadth 

 near base about 65, tapering, plane in front, slightly convex behind, 

 ending below the summit of the broad apiculus ; central basal cells 

 pellucid, oblong, presumably in two layers, 35 to 50 by 10 to 14, 

 smaller outwards as well as upwards where they end nearly trans- 

 versely in the general areolation, which is composed of opaque, 

 largish, bluntly quadrate cells, minutely papillose on both sides, 

 8 to 13 long. 



On peaty earth, island of Harris, Outer Hebrides. This moss 

 seems allied to M. recurvifolia (Tayl.), but the margins are not 

 pellucid, etc. 



BARBULA FERRUGINASCENS. Densely tufted, of a lurid green, 

 at length entirely of a rusty red colour ; stems upright from a quarter 

 to one-half of an inch long, sparingly branched ; leaves closely set, 

 slightly contorted when dry, erecto-patent, straight and stiff when 

 moist, rather broadly ovate lanceolate, slightly acuminate ; nerve 

 yellow, then red, flattish in front, rounded and prominent behind, 

 thickness about 50, breadth near base 60, nearly cylindrical, scarcely 

 tapering, perhaps a little broader near the middle, excurrent shortly 

 in a straight, stiff, blunt apex, generally tipped with a tawny, smooth, 



