1909-10.] Flora of Scottish Lakes. 77 



UMBELLIFERiE. 



Hydrocotyle vulgaris, L. " I., II., III.," IV., V., VI., VII. The ordinary 

 form abounds nearly everywhere on the shores of lochs {ante, fig. 36). 

 At Barlockhart Loch there occurred a floating form having stems 

 from 30 to 50 inches long, with leaves only about h inch in diameter 

 and very thin. 



Apium nodiflorum, H. G. Reichh. V., VII. Scarce, seldom seen as a 

 constituent of a loch flora. 



Apium inundatum, H. G. Reichh. " I.," IV., V., VI., VII. Sometimes very 

 abundant, but always in water that is not very peaty. It usually 

 occurs from the margin to 3 feet and occasionally even to 6 

 feet deep, reaching the surface from even the greatest depth. In 

 places where the water has retreated, the seedlings sometimes grow 

 so thick as to cover the mud with a sward, but their further develop- 

 ment in an aerial environment is restrained. 



Carum verticillatum, Koch. IV., V., VI. This is one of the character- 

 istic plants of the lowland parts of Galloway in wet meadows, moors, 

 and about the shores of lochs (fig. 27). 



Cicuta virosa, L. V., VII. As a member of a loch flora, I have only 

 observed this plant at Carlingwark Loch, where it is abundant, and 

 at Otterston Loch (fig. 56). 



Sium angustifolium, L. ( = S. erectum, Huds.). [VI. — J. M'A.], VII. 

 Always scarce. 



(Enanthe crocata, L. " I.," IV., V., VI. In the loA\^land Areas this is a 

 common plant on the marshy shores of lochs. It occurs in Area VII., 

 but not at the lochs. 



Angelica sylvestris, L. IV., VII. Occasionally on marshy shores. 



RUBIACEzE. 



Galium palustre, L. " I.," IV., V., VI., VII. Frequent on the marshy 

 shores of lochs (fig. 30). 



VALERIANACE^. 



Valeriana officinalis, L. IV., V., VI., VII. Sometimes found at the 

 marshy shores of lowland lochs. In Area I. it is very rare at the lochs. 



COMPOSITvE. 



Eupatorium cannabinum, L. " II.," VI. Only observed about the lochs 

 of the Mochrum di.strict (p. 139). [Often found in damp places by 

 the seashore of Wigtownshire and Kirkcudbrigiitshire. — J. M'A.] 



