MAN'S INFLUENCE ON INDIGENOUS FLORA OF ABERDEEN 235 



Utricularia vulgaris, L. ) Both species are recorded as found in 



U. minor, L. j the peat moss at Ferryhill, and may have 



existed earlier in other mosses or swamps also within the 



parish. They must have become extinct locally when these 



ceased to exist, that is, before 1850. 



Pinguicula vulgaris, L. Formerly common on wet places on moors, 

 the butterwort seems to have disappeared from Aberdeen with 

 the cultivation of Stocket Moor about 1880, though it may 

 linger on moist banks in out-of-the-way spots. 



Calamintha Clinopodium, Spenn. Formerly this grew here and 

 there on rough banks of the Dee and on islands in the estuary. 

 It was not common, and seems not to have been observed in 

 Aberdeen since 1863. The banks have been so altered since 

 then as to make it unlikely that it will re-establish itself on 

 them. 



Salicornia herbacea, L. Near the mouth of the Don early last 

 century, but apparently in small amount, and became extinct 

 there before 1830. It is common in the estuaries of the 

 S. Esk and N. Esk to the south, and of the Ythan to the 

 north. 



Polygonum Hydropiper, L. Abundant in the earlier part of last 

 century around certain pools and mill dams in the west part of 

 Aberdeen, this species appears to have been extirpated 

 locally when these pools were filled up. 



P. minus, Huds., was recorded by Knight from Gilcomston Dam. 

 There is no other note of its occurrence within Aberdeen ; 

 but it is fairly common by the Loch of Loirston, two or three 

 miles south of Aberdeen. 



(Myrica Gale, L. May well have grown on the wet moors in 

 Aberdeen, as it still does in most of the adjoining parishes ; 

 but the only record of its occurrence here is in a list so full of 

 evident errors as to lack authority.) 



Corylus Avellana, L. No doubt this grew in the thickets by 

 streams, but it has disappeared with these, until there exists, 

 so far as I can ascertain, only one example of it in the parish 

 plantation in the district of Rubislaw. 



Empetrum nigrum, L. Though no doubt plentiful formerly on the 

 moors, this seems now to have become almost, if not quite, 

 extinct within Aberdeen, since the moors were broken up for 

 cultivation. 



Orchis latifolia, L. Common on the wet moors and in the marshes, 

 this became extinct in Aberdeen when its habitats were drained 

 and cultivated. 



