24 PHANEROGAMS AND FERNS OF SOUTH ARDGOIL. 
Jointed Rush (Juncus acutiflorus, Ehrh.)—This species forms 
great beds of dark green on the hillsides, where both surface 
soil and subsoil are wet. These beds occur from low levels up 
to about 1400 feet, and are most strongly developed over 
the slopes of the south-west end of Corrie Odhair. See Rush 
Associations (p. 6). 
Bog Jointed Rush (Juncus supinus, Meench.). Lesser Bog 
Jointed Rush (Juncus uliginosus, Sibth.). Frequent on moist 
banks under shade, in moist places in the woods, and in places 
on the hillside where water runs gently through herbage and 
among sphagnum, but apparently confined to levels below 
800 feet ; frequently viviparous. 
Don’s Slender Rush (Juncus tenuis, Willd.)—Plentiful in 
places on the roadside. 
Heath Rush (Juncus sguarrosus, Linn.)—From low levels up 
to within 30 feet of the summit of Cnoc Coinnich ; and on the 
summits of all the other hills, except the southern ridge, and 
' dominating large stretches of the hillsides, especially from 
about 1000 feet upwards to 1600 feet; in parts subject to 
considerable dessication. 
Toad Rush (Juncus bufonius, Linn.)—Common in ditches by 
the roadsides, and occasionally in wet bare places up to 500 
feet. 
Three-flowered Rush (Juncus trifidus, Linn.)—Plentiful on 
the rock ledges at 2000 feet on Cnoc Coinnich, and on stony 
ground on Carn Glas, but not observed elsewhere. 
Three-flowered Rush (Juncus triglumis, Linn.)—Plentiful 
on the north-west grassy slopes and base of cliffs on Cnoc 
Coinnich at 1800 feet. 
Round-fruited Rush (Juncus Gerardi, Loisel.)—On the shore. 
Hairy Rush (Luzula pilosa, Willd.)—At low levels; occa- 
sional only in shady places. 
Wood Rush (Luzula sylvatica, Gaud.)—Very frequently met 
with in dryish places on the banks of the streams and on the 
open hillsides, and high up on the earth slopes among the 
rocks of the upper parts of the hills—to 1900 feet on Cnoe 
Coinnich, to 1400 feet on the Saddle, and to 1800 feet on 
Ben Reithe. The strongest hillside development is between 
1300 to 1400 feet ; appears to be absent from the woods proper. 
Field Rush (Zuzula campestris, Br.)—This is the commonest 
and most widely spread of the wood-rushes; up to 2000 feet 
on Cnoc Coinnich, and on the summit of Ben Reithe. It is 
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a 
