VEGETATION OF BLAKENEY POINT. 27 



Psamma arenaria (occ.) 

 Ranunculus repens (v.r.) 



* Rumex trigranulatus (v.c.) 

 Rumex acetosa (v.r.) 

 Sagina apetala (r.) 

 Sagina maritima (occ.) 

 Sagina procumbens (loc.) 

 Salicornia disarticulata (v.r.) 



: ' : Sedum acre (c.) 

 Senecio Jacobaea (r.) 



* Senecio vulgaris (forma) (c.) 



* Silene maritima (v.c.) (including several forms). 

 ::: Sonchus arvensis v. littoralis (c.) 



* Sonchus oleraceus (f.) 



Statice binervosa (f. on slopes of distal end) 



Statice Limonium (v.r.) 



Stellaria Boraeana (occ.) (Suseda Islands). 



* Suaeda fruticosa (v.c.) 



* Triticum junceum (f). 



* Triticum pungens (r.) 

 Tussilago Farfara (r.) 



V.C. = very common ; c. = common ; f. = frequent ; 

 occ. = occasional; loc. = local; r.r. rather rare; r. rare; 

 v.r. = very rare. The more important species marked * 



The most striking feature which these shingle plants have in 

 common is their low growth (Fig. 13), a habit that, apart 

 from the shrubby Suceda, which except in sheltered situations 

 sheds its leaves in winter, is universal. The majority grow 

 close to the shingle throughout their life history, and some, 

 like Arenaria, Silene, etc., attain added protection by the 

 aggregation of their shoots to form a mat-like surface. 



Of those which attain any height the greater period of the 

 year is passed in the rosette condition (Sonchus, Glaucium), 

 or with the young leaves protected by those which are dead 

 and withered (Rumex) ; it is only during the milder months 

 that these species send out a vertically elongated axis for the 



