72 Proceedings of the Royal Society of Edinburgh. [Sess. 
Ranunculus sceleratus, L. VII. On muddy shores, but very scarce. 
Ranunculus Lingua, L. V., VII. On marshy ground about lowland 
lochs ; restricted in distribution, but abundant where it does occur. 
Ranunculus Flammula, L. “ I., II., III. Abundant.” IV., V., VI., VII. 
Normal forms are abundant nearly everywhere below 1000 feet 
above sea level. 
Ranunculus scoticus, Marsh. “ I. Abundant about the shores of lochs 
over 1000 feet above sea.” IV. Occurs at some of the hill lochs. 
Ranunculus Flammula, L. A small prostrate form rooting profusely 
at the nodes, similar to the var. pseudo-reptans but larger, is sometimes 
found upon the stony or sandy shores of lochs in all the Areas, but 
is especially abundant at Loch Ken (figs. 39 and 40). 
Ranunculus Flammula, L., var. pseudo-reptans, Syme. VII. A very 
small prostrate plant, somewhat resembling the true R. reptans. 
Occasionally found on exposed shores. 
Ranunculus reptans, L. VII. Perhaps another district form of R. 
Flammula. It occurs on flat, exposed, sandy places that are either 
bare or covered with short herbage in various spots all around 
Loch Leven. It is also abundant at Carriston Reservoir (fig. 94), 
and occurs sparingly at the reservoirs on the Lomond Hills. The 
filiform stem usually has from 3 to 5 vascular bundles in the lowest 
internode, but occasionally as many as 12 may be found. The 
smallest forms of the var. pseudo-reptans have thicker stems contain- 
ing more vascular bundles which are also better developed. The dwarf 
prostrate growth assumed by this plant is also exhibited by other plants 
on the exposed shores of Loch Leven, — for example, J uncus acuti- 
florus, J. bufonius, Equisetum arvense, E. palustre, Carex hirta, etc. 
Ranunculus Flammula, L., var. natans, Pers. IV., VII. I have found 
two distinct forms of this interesting variety. (1) In Area VII., a 
floating form which is abundant at the margin of peaty pools about 
Morton Lochs, Tents Muir. This is a rather strong, wiry plant 2 or 3 
feet long, having leaves somewhat thinner in texture than those of the 
terrestrial type, but by no means flaccid ; it otherwise resembles the 
weak flaccid form described below. This is probably the exact form 
described by Persoon * and Lamarck, f (2) In Area IV., a sub- 
* “Ranunculus 
2. Flammula 
.... 7. natans , fol. inferiorib. ovatis integris, superiorib. linearibus. In aquis 
prope Montmorency et in Barbaria. Yid. Lam. Enc. bot. 6. p. 98-99.” ( Synopsis 
Plantarum , . . . . C. H. Persoon, vol. ii. (1807), p. 102.) 
t “ On trouve dans l’etang de Montmorency une variete tres-voisine de celle-la, 
