SCAPANIA 283 
ScAPANIA PALUDOSA C. Mill. Frib. 
Rare, and only as yet found in the centre and east of 
Scotland. It is an alpine species, ascending to 3200 ft. alt. ; 
its lower limits have not been recorded. It occurs in large 
grass-green or yellow-green masses in marshy ground, and 
is noticeable for its very flaccid leaves and strongly arched 
keel. 
S.E. HicgHLuanps.—Mid Perth: Schiehallion, 1882 (Carr.). 
Mip E. HicHLanps.—Forfar : Clova, 1876 (Ferg.); Cam- 
lochan, 1904 (Ew. and Young), S. Aberdeen: Braemar, 
1856 (Croall). 
Lower N. HicHLANps.—H#. Ross: Ben Wyvis, 1872 
(Barker); Scuir na Lapaich, alt. ea. 3000 ft., 1904 (Cocks). 
var. VOGESIACA C. Miill. 
Min E. HigHLanps.—Forfar : Camlochan, 1904 (Ew. and 
Young). 
SCAPANIA IRRIGUA (Nees) Dwm. 
Generally distributed from Dumfries to Shetland, but 
rather an uncommon species. It is uncommon to rare in 
the West Lowlands, being rare in the Upper Nith valley 
and uncommon in the Upper Clyde district. Is frequent 
in some parts of the East Lowlands, but not generally so, 
and is rare in the Upper Tweed district. In the East 
Highlands it is frequent, and is also frequent in some parts 
of the West Highlands and Hebrides, apparently continuing 
so through the North Highlands to Shetland. Its distribu- 
tion is rendered difficult to learn by the local tendency 
which it appears to have, in some districts being frequent, 
and in others under apparently the same conditions being 
rare or absent. 
It is, on the whole, probably more frequent on the east 
than on the west side of the country, and it is more frequent 
in the north than in the south. It is, however, uncommon 
on the hills, though ascending to 3200 ft. alt. in Mid Perth. 
Grows in yellowish-green tufts of rather small size in 
wet grassy ground, marshes, peat-mosses, ditch-sides, and 
sides of mountain rills. What is probably also a form of 
