FLOE A OF SCOTTISH LAKES 
177 
Loch Corsock. There it flowers under water to a depth of 
3 feet ; without the flower-stalk these submersed forms look 
extremely like Isoetes lacustris. 
JUNCAGINACE^ 
Triglochin palustre, Z., L, IL, IV., VL Scarce, and sporadically 
scattered about the shores of lochs. 
MELANTHACE^ 
Tofieldia palustris, Huds.^ I. About shores in peaty places ; not 
common. 
Narthecium ossifragum, Hiids.^ I., IV., V., VI. On peaty shores, 
but seldom abundant. 
JUNCACE^ 
Juncus eff'usus, L., I., IL, III., IV., V., VL, VII. Abundant every- 
where, often covering large areas of ground. 
Juncus conglomeratus, L., I., III., IV., V., VI. , VII. On drier 
ground than J. efl'usus, and much less abundant. 
Juncus glaucus, Ehrh., VIL Not uncommon in some of the other 
Areas, but I have only observed it on the shores of the lochs 
in Area VII. 
Juncus bufonius, L., L, IV., VI. , VII. Frequent about the shores 
of many lowland lochs, but less common at the hills. Its var. 
fasciculatus, Bert., is sometimes found growing in dense 
prostrate tufts on exposed sandy shores. 
Juncus lamprocarpus, Ehrh. { = J. articidatus, Z.), I., II. , III., IV., 
v., VI. , VII. Abundant on the shores of lochs, especially 
where the water is more or less peaty. 
Juncus acutiflorus, Ehrh. { = J. stjlvatimis, ReicJiard.y I., IL, III., 
IV., v., VI. , VIL Abundant on the shores of lochs, but it is 
perhaps more plentiful about non-peaty lowland lochs than 
J. lamprocarpus. 
When it could not be readily determined which of the two 
last species a specimen was referable to, I have called the 
plant J. articulatus. They both vary greatly, but I think 
most of the reduced forms so frequently met with are from the 
acutiflorus group. 
Juncus supinus, Moeiich, L, IV., V., VL, VII. A more protean 
species than the last-mentioned. The normal type is of 
terrestrial habit and is found on the shores of lakes. Opposed 
to this is a submerged aquatic plant, with tresses of numerous 
hair-like leaves and without flowers ; one might therefore 
easily be puzzled as to their identification. By careful search- 
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