134 THE MICROSCOPICAL NEWS. 
habit and yellowish-green colour, the stems are very short and 
simple. Leaves erect, straight, lanceolate-subulate, acute, nerve 
occupying all upper part of subula ; Capsule truncate-ovate on a 
straight yellowish seta. Fruiting on limestone and sandstone rocks 
in August. S. pusilla, the long-leaved bristle Moss, is not uncom- 
mon on damp shady rocks of sandstone or limestone in loose, 
dwarf, silky, dark-green tufts. Stems jin. simple or forked. 
Leaves lanceolate-subulate, very narrow, acute, faintly crenulate 
above, nerve thin vanishing at apex ; capsule erect, ovate, teeth of 
peristome distantly barred ; lid with an oblique beak. Fruits in 
May and June. Fig. 41. 
Closely resembling the last, but with leaves more acutely 
subulate is, S. acutifolia, the variety 2. longiseta is, however, only 
Fig. 41. 
Fig. 42. 
found in Britain. Found fruiting in May and June in the fissures 
of calcareous rocks. It derives its name from the longer seta 
which elevates the capsule above the pericheetial bracts ; lid with 
a long oblique beak. 5S. ¢réfaria, or tristicha, is a very rare species 
found on dripping calcareous rocks, a ready means of identification 
being afforded by the slender branches, which, in the moist state, 
show distinctly the trifarious arrangement of the leaves. Another 
rare species fruiting in May and June, and found on detached 
chalk blocks, partially embedded in soil, is S. paucifolia, distin- 
guished by its enlongated capsule. |S. se¢acea or recurvata, the 
curve-necked bristle Moss, is found on shady sandstone rocks or 
stones, fruiting this month and next. It is an olivaceous-green, 
with stems, very short, and fragile, simple or forked. Lower 
leaves oblongo-lanceolate, upper leaves longly subulate, flexuose, 
