1904 - 5 .] 
Flora of Scottish Lakes. 
981 
buted and abundant, usually under 6 ft. high, and seldom 
covering very large areas except at Lismore. 
Deschampsia csespitosa, Beauv. I. Generally distributed, 
mostly about lowland lochs. 
Glyceria fluitans, Br. I. Aquatic and terrestrial forms 
abound everywhere in this area. II., III. Scarce. 
EQUISETACE^E. 
Equisetum limosum, L. I., II., III. Abundant everywhere 
in I. and III., often covering large areas. It prefers deeper 
water than Carex rostrata ; sometimes even in water 5 ft. 
deep. When the two are growing in the same locality, 
which is very usual, the colonies are always distinct from 
one another, with Equisetum in advance. 
LY COPODIACEiE. 
Isoetes lacustris, L. I. Abundant everywhere in peaty water, 
forming a bottom carpet from about 2 to 1 6 ft. deep. In 
some lochs they are about 4 or 5 ins. high, with stout, erect 
leaves, forming stiff little plants. In other places, 
apparently under similar conditions, the leaves are 18 ins. 
long, weak and recurved. 
CHARACEiE. 
Messrs H. and J. Groves most kindly gave me the benefit of 
their unrivalled knowledge of this difficult order. 
Nitella opaca, Ag. I. Generally distributed in peaty lochs ; 
it occurs at a greater depth in these lakes than any other 
plant, save Fontinalis antipyretica. 
Nitella opaca, Ag ., slender forms, app. var. attenuata, 
H. fy J. G. I. In L. Ness and other lochs. 
Nitella translucens, Ag. I. Only observed at L. Meiklie in 
8-10 ft. of water. 
Chara aspera, Willd., not incrusted with lime. III. Carpets 
the entire bottom of L. Cran ; also in L. Loy, etc. 
Chara aspera, Willd ., app. var. desmacantha, H. fy J. G. y 
incrusted with lime. II. Carpeting the bottom of the 
lakes from 2-20 ft. deep. 
