PRIONOLOBUS 217 
ally it oceurs in large reddish-brown cushions on rather 
drier rocks. It has been found in most quantity where 
there is some lime, though it is also found on purely 
schistose rocks. Perianths are rather uncommon, and fruit, 
mature in June, is rare. 
S.E. Higoianps.—S. Perth: Ben Venue, 1876 (Carr. cf. 
Trans. Bot. Soc. Ed., p. 466, 1880); Strathyre, with Hygrob. 
laxifolia (Macy.). Mid Perth: Ben Lawers, per., alt., 
3900 ft. and alt. 3900 ft. (Macv.); Craig-an-Lochain, alt. 
ca. 2000 ft. (Macv.); Cam Chreag (Maev.); Craig Chailleach, 
alt. 2500 ft., with Hauplozia atrovirens (Macv.); Ben Dubh 
Craige (Macv.); Ben Odhar (Macv.); Clifton Burn, with 
Haplozia atrovirens (Macv.); Ben Heasgarnich (Young). 
W. HicHiuanps.—Argyll: Meal Odhar, Glen Lochy, cfr. 
(Ewing and Macv.); Ben Doureann, per., with H. laxifolia 
(Ewing and Maev.). W. Inverness: Moidart, several places 
with Hygrob. laxifolia (Macv.). 
InNER HeEpRIDES.—NV. Inner Hebrides: Mill Burn, 
Broadford, per (Macv.). 
Lower N. HicHianps.—£. Ross: Loch Luichart, per. 
(West). 
ORKNEY.—Ward Hill, Hoy, among Scup. purpwrascens 
(Lillie). 
PRIONOLOBUS Spruce 
PRIONOLOBUS MAssALoNnecl (Spruce) Schiffn. 
This rare species has only been found in one locality in 
Scotland, and in the south of England. The Scottish 
specimen was determined by Schiffner, but Douin names 
our plant Cephaloziella Nicholsoni as being distinct from 
Spruce’s species. 
Mip E. Hicuuanps.— Kincardine: Mount Shade, on 
Frull. fragilifolia, 187(7 2) (Sim). 
PRIONOLOBUS STRIATULUS (Jens.) Schiffn. 
Cephalozia striatula Jens. 
This rather recently described species is at present 
confined in Britain to the locality given below, where it 
forms thin patches straggling over compact Sphagnum 
