366 TRANSACTIONS OF THE [Sess. lxxix. 



Eriophorum vaginatum; and Lycopodium clavatum. 

 Associated with the broom on low, dry patches of sand 

 are mats of Calluna vulgaris, and Cladonia rangiferina 

 spreads over the surface. Another grouping on the dry 

 sand is of Calluna vulgaris, dominant, with Aira caryo- 

 phyllea, Linn. ; Cladonia rangiferina ; and one or two 

 plants of Lister a cor data, Br.] 



In one of the largest lochs proper the following plants 

 occur : Potamogeton polygonifolius, Pourr. ; Equisetum 

 limosum ; Myriophyllum, sp. ; and Ranunculus Lingua, 

 Linn. ; and around the margin grow Caltha palustris ; 

 Cardamine hirsuta, Linn. ; Rumex crispus, Linn. ; Galium 

 palustre ; and Hydrocotyle vulgaris. 



(c) East Loch. 



This is a large space among the dunes which decline in 

 height from the high white dunes to Binsness Wood, and 

 which bear Ammoplnla, arenaria on their ridges. A 

 variable part of the hollow is covered with water, the rest 

 is sandy but affording a somewhat moist habitat. Among 

 its rich and varied flora, Littorella uniflora occurs in great 

 stretches on the wetter ground. Ranunculus FTammula, 

 Linn. ; Viola palustris ; Antennaria dioica, Gaertn. ; 

 Myosotis caespitosa, Schultz ; Veronica Beccabunga, 

 Linn., are also abundant. Mosses form an exceptionally 

 important feature of the arenarial carpet, including Bryum 

 pseudo-triquetrum, Schwgr. ; Polytrichum aloides, Hedw. ; 

 Polytrichum commune; Brachythecium albicans, B. et 

 S. ; Hypnum Schreberi, Willd. ; Pliilonotis fontana ; Aula- 

 com,nium palustre, Schwgr. ; and Ceratodon purpureus. 



(d) South Loch. (See Map VI.) 



The driest of the so-called lochs is that on the south-east 

 of the high barren dunes. As early as April the water is 

 fast disappearing and by August the flora and the midges 

 are the only indications that a loch or even a marsh has 

 existed here the same season. The landward boundary of 

 the dunes is not far off. 



On the south of the area is a high ridge of sand behind 

 which a flat well covered with vegetation — e.g. Salix repens ; 

 Erica cinerea ; Erica Tetralix ; Filago germanica ; and 



