LOCALITIES. 



123 



ditches, wherever these may be accessible. To what extent the 

 embankment has prejudiced the riverside vegetation is not easy to 

 determine. Subsoil alluvial. The shores and flats on the opposite shore 

 are of the same character. 



*Apium graveolens. 



*Artemisia maritima. 



*Asparagus officinalis (two or three plants ; 



on the other side, more perhaps). 

 *Aster Tripolium. 

 *Beta maritima (near Erith). 

 *Carex divisa; *vulpina. 

 Caucalis daucoides (?) (near Erith). 

 *Chenopodium Bonus-Henricus (Erith). 

 *Cochlearia anglica. 

 *Conium maculatum. 

 *Crepis paludosa. 



*Cynoglossum officinale (ditch banks to- 

 wards Erith ; a few plants). 

 *Festuca sciuroides (pastures). 

 *Fceniculum vulgare (a few plants). 

 *Glaux maritima. 

 *Helminthia echioides. 

 *Hydrocharis Morsus-ranae. 

 *Juncus acutiflorus ; *glomeratus, &c. 

 *Lactuca saligna (near Erith). 

 *Lepidium ruderale. 



*Lepturus filiformis. 

 *Medicago maculata ; sativa. 

 *Phragmites communis. 

 *Plantago maritima. 

 Polypogon monspeliensis (near the rifle 



butts, scarce. W. Reeves.) 

 *Potamogeton pusillus; *pectinatus. 

 *Samolus Valerandi. 

 *Scirpus maritimus. 

 *Sclerochloa maritima. 

 *Sinapis nigra. 



*Spergularia neglecta (marina seg.). 

 *Sua'da martima. 

 *Toi ilis nodosa (banks, plenty). 

 *Tragopogon pratensis; porrifolius (?) 



olim. 



*Tritolium maritimum(?) (not seen). 

 *Triglochin palustre ; *maritimum. 

 *Typha latifolia. 

 *Vicia tetrasperma. 

 *Zannichellia pedicellata. 



Sonchus palustris, Leucojum sestivum, Polypogon littoralis, grew here 

 formerly. The first-mentioned two plants also in the marshes about 

 Plaistow, on the opposite side of the river, and the other near the powder 

 magazine, between Woolwich and Erith. 



Agrostis Spica-Venti ; between Ilford and Barking. 



Dipsacus pilosus ; between Wanstead and Barking. 



Lepidium latifolium and Draba ; about Barking. 



Gastridium lendigerum, Sclerochloa loliacea, Hypochceris glabra, with 

 Chenopodium olidum, grew formerly in the Woolwich warren ; may be 

 there now. 



22. PLUMSTEAD COMMON, BOSTALL HEATH, ABBEY WOOD, 

 ERITH SAND-PITS. 



The heights which serve as boundary inland to the flats between 

 Woolwich and Erith, are between two and three hundred feet high. 

 Plumstead Common does not exceed a hundred and fifty, with a gradual 

 rise. It is a gravelly plateau at the foot of Shooter's Hill, furzy and 

 uneven in the direction of Bostall Heath, with which it is nearly 

 continuous ; here are sand-pits, and beyond is Abbey Wood ; near it, 

 towards the flats, are the ruins of Lesnes Abbey. The grounds ot 

 Belvedere Park come between the wood and the sand-pits at Erith. 



ON THE COMMON. ABBEY WOOD. 



* Aira flexuosa ; *pnecox. 

 *Leontodon hirtus; *hispidus. 

 *Scnebiera Coronopus, &c. 

 *Spergularia rubra. 



Acer campestre. 

 Betula alba. 

 Carpinus Betulus. 

 Clematis Vitalba. 



