ARCTIC PLANTS IN OLD LAKE DEPOSITS OF SCOTLAND 47 



Mr. Reid's abstract is as follows : 



" FOSSIL ARCTIC PLANTS FOUND NEAR EDINBURGH. 

 By CLEMENT REID, F.L.S., F.G.S. 



Recent discoveries by Mr. Bennie, of the Geological Survey, 

 have brought to light a series of silted-up tarns or small lochs in the 

 neighbourhood of Edinburgh. These tarns seem to have lain in 

 irregular hollows left on the retreat of the ice, for the lowest deposits 

 usually yield remains of Arctic plants. The principal localities for 

 these plants are Corstorphine and Hailes. Trees, except perhaps 

 the alder, are entirely missing in the lower deposits, and the 

 vegetation consists mainly of dwarf willow and birch, with a few 

 herbaceous plants, of species still living within the Arctic Circle. 

 The list now includes the following plants, those marked with an 

 asterisk being Arctic species no longer living in the lowlands of 

 Scotland : 



Ranunculus aquatilis, Linn. : ' f Oxyria digyna, Hill. 



,, repens, Linn. ; Betula nana, Linn. 



Viola (?). Alnus (?). 



Stellaria media, Cyr. Salix repens, Linn. 



Rubus sp. '" herbacea, Linn. 



'"Dryas octopetala, Linn. - f polaris, Wahlb. 



Potentilla sp. * ,, reticulata, Linn. 



Poterium sp. Empetrum nigrum, Linn. 



Hippuris vulgaris, Linn. Potamogeton sp. 



Myriophyllum spicatum, Linn. Eleocharis palustris, R. Br. 



Taraxacum officinale, Web. Scirpus pauciflorus, Lightf. 



Andromeda polifolia, Linn. ,, lacustris, Linn. 



Menyanthes trifoliata, Linn. Carex, 2 sp. 



MOSSES (determined by ANTONY GEPP, F.L.S.) 



Barbula fallax, Hedwig. Hypnum polygamum, Schimp. 



fragilis, Bruch and Sch. ,, fluitans, Linn. 



Grimm ia sp. ,, revolvens, Swartz. 



Racomitrium sp. ,, rugosum, Ehrh. 



Philonotis fontana, Brid. ,, cupressiforme, Linn. 



Aulacomnion palustre, Schw. sarmentosum, Wahl. 



Webera sp. cuspidatum, Linn. 



Bryum sp. ,, trifarium, Web. and 

 Pogonatum sp. Mohr. 



Polytrichum sp. ,, scorpioides, Linn." 

 Camptotheciumnitens, Schimp. 



As in Mr. Reid's abstract no details are given of the 

 circumstances of the deposits in which the Arctic plants 



