Flora of Scottish Lakes. 
87 
1909-10.] 
about lowland lochs, and occasionally abundant, as at Burntisland 
Reservoir, where it overgrows areas of marshy ground ; at the same 
loch stragglers may also be found in drier situations, even on the 
adjacent roadside. The specimens from the last-mentioned site are 
much dwarfed, and resemble the var. stictocarpa, Bruce. 
Carex flacca, Schreb., var. stictocarpa, Bruce. “ III.,” IV., V., VI., VII. 
Scattered specimens are frequent, but it seldom occurs in abundance. 
Carex binervis, Sm. “ I.,” IV., VI. On boggy, peaty shores usually scarce. 
Carex filiformis, L. ( = G. lasiocarpa, Ehrh.). “ I.,” IV., V., VI. Frequent 
and abundant at the margins of alpine and sub-alpine lochs, where 
it is sometimes the only dominant species of this genus (fig. 19). 
Carex hirta, L. VII. Not general about lochs, but it grows in abundance 
on the exposed sandy shores of Loch Leven, where, in common with 
several other plants, it assumes a dwarf habit, growing only from 
4 to 8 inches out of the sand. It grows there much after the 
manner of Carex arenaria on the sandy seashore, and, like it, binds 
the sand with its long scaly rhizomes. 
Carex rostrata, Stokes (-C. inflata, Huds.). “ I., II., III.,” IV., V., VI., 
VII. Probably the most abundant and dominant plant of all. It 
grows at the margins of both peaty and non-peaty lochs of any 
elevation, from the shore out into water 1 or 2 feet deep (figs. 22, 
48, 96, etc.). 
Carex vesicaria, L. “ I.,” IV. Occasionally very abundant ; at the 
head of L. Ken, for example, there are large associations of it. 
Frequently the beak of the nut is curiously looped within the 
perigynium ; this results from the long style not being allowed to 
pass out of the mouth of the perigynium as the nut develops. 
Carex acutiformis, Ehrh. V. As a constituent of a loch flora I have 
only observed this plant at Carlingwark Loch. 
GRAMINEdE. 
Phalaris arundinacea, L. “ I.,” IV., V., VI., VII. Rather common at 
loch margins, but principally about lowland lochs (fig. 71). 
Phragmites communis, Truth. “I., II., III.,” IV., V., VI., VII. A very 
dominant and abundant species in lowland or highland, peaty or 
non-peaty lochs. On the rich muddy shores of wind-sheltered lochs 
it attains great luxuriance, often being 8 or 10 feet high in such 
situations, and overgrowing large areas (figs. 44, 65, 90, 95, and p. 168). 
Deschampsia csespitosa, Beauv. “ I.,” IV., V., VI., VII. A very usual 
member of the shore flora of lochs, but generally in small quantities. 
