VEGETATION OF BLAKENEY POINT. 25 



Sand-dune plants, viz., Car ex arenaria, Convolvulus Soldanella, 

 Elymus arenarius, Eryngium maritimum, Senecio Jacobcea, 

 Stellaria Borceana, and Psamma arenaria are all met with 

 either as rareties or, in the case of the last, as a not infrequent 

 component of the shingle formation. 8 Curiously enough 

 Eryngium maritimum, although typically a psammophyte, is 

 only to be found on the shingle and is totally absent from the 

 dunes 9 themseves. With the exception of a single meagre 

 plant, upon the dunes, the same may also be said of 

 Elymus arenarius. 



Typical gravel heath plants are rare (with the exception of 

 Festuca rubra referred to above) and few in number ; they 

 comprise Lotus corniculatus, Festuca ovina, Holcus lanatus, 

 Poa pratensis, Hieraciutn Pilosella, and perhaps Arrhena- 

 therum avenaceum. 



CASUALS. 



Besides the normal constituents of the flora, there are here, 

 as always, casuals which, regarded from the point of view of a 

 shingle beach, are certainly weeds. Of such plants Lychnis 

 vespertina and Papaver Rhoeas represent the cornfield element 

 with a single plant each. (A second specimen of the former 

 has been found for the past two years on the shingle near the 

 Hood.) Carduus arvensis, Dactylis glomerata, and Tussilago 

 Farfara, which are usually to be found in stiff soils, may also be 

 placed in the same category. 



Enumeration of species growing on the main shingle bank. 

 In all, sixtyplants have, up to the present, been recorded 

 for the Blakeney main bank, a complete list of which is 

 appended below 



Agrostis maritima (r.) 

 Aira praecox (occ.) 



8 In view of the name Marams applied to the complex of laterals aud marshes 

 abutting on the central part of the main bank, and the presence of sand-dnnes ou 

 both the other aggregations of laterals, viz. : " The Hood" and the Headland, it is 

 possible that these Psamma plants may indicate the presence of dunes in former 

 times on the more proximal part of the Point. On this conjecture the forward 

 movement of the shingle has been accompanied by a similar advance of the sand 

 supplies preventing the regeneration of these dunes as they became eroded by 

 the wind. 



9 Eryngium is reported as having been quite abundant on the bank in byegone 

 times, and is now again increasing. 



