1909-10.] Flora of Scottish Lakes. 71 



PART II.— SYSTEMATIC LIST OF THE PLANTS. 



RANUNCULACE^. 



Ranunculus aquatilis, L. lY., Y., YL, YII. Many forms of the aquatic 

 Batrachian RanuncuH occur in the lowland non-peaty lochs of the 

 districts now under discussion. Occasionally it was quite impossible 

 to determine the exact species met with, owing to the absence of 

 flowers and fruit, or other data by which the numerous forms are 

 distinguished. The species enumerated below I have been able to 

 collate with published descriptions. In the local lists contained in 

 this paper, wlien R. aquatilis is given, it will be understood that it 

 has not been possible to distinguish the exact species, for the reasons 

 just mentioned. All forms are very scarce in Areas I. to III. 



Ranunculus Drouetii, F. Schultz. Y., YL, YII. Not Y&ry general ; 

 occurring chiefly in small lowland lochs. 



Ranunculus Baudotii, Godr. YII. Not common, but occasionally 

 abundant. 



Ranunculus circinatus, Sihtli. " II. Yery scarce." YL, YII. Not 

 general, but occasionally very abundant : at Kilconquhar Loch, for 

 example, it covers a large area of the water, and, with the preceding 

 species, presents a magnificent spectacle when in flower (fig. 92). 



Ranunculus peltatus, Schrank. Y., YL, YII. Widel}^ distributed, and 

 although not a common loch plant, is occasionally very abundant. 

 Sometimes a terrestrial form overgrows mud at the marg-in of a 

 loch, as at the west end of Kinghorn Loch. At L. Camilla, Fife, 

 there is a curious form with dark spots and blotches on its lobed 

 floating leaves, similar to those on the leaves of R. hederaceus ; the 

 latter is also abundant at L. Camilla. 



Ranunculus heteroph^-llus, Weber. TV., Y. Occasionally very abundant. 

 In Loch Ken, for instance, it overgrows considerable tracts of shallow 

 water at the margin of the loch, and when in flower is extremely 

 picturesque (figs. 37 and 38). 



Ranunculus Lenormandi, F. Schultz. Y. On mud at the margin of 

 lakes, but ver}- scarce. [YL In ditches S. of Lows Warren. — 

 J. M'A] 



Ranunculus hederaceus, L. " I. Yery scarce." YII. Frequent on 

 the muddy shores of lochs. In Areas lY., Y., and YL it is frequent 

 about streams, etc., but is seldom seen at the lochs. 



