LOCALITIES. 



117 



15. ROADSIDES ABOUT ISLEWORTH, TWICKENHAM, TEDDINGTON, 

 HOUNSLOW, AND BANKS OF THE CRAN. 



Low-lying and well-cultivated districts, subsoil, gravelly ; but generally 

 well covered with alluvium. Hounslow Heath, upon which many rare 

 plants grew formerly, is now nearly all enclosed and converted into a 

 military parade and rifle ground; a patch or two near the Cran is all that 

 remains of it. 



*Arabis Thaliana (bank, lower road, Ted- 

 dington). 



Arnoseris pusilla (gravelly fields, Ted- 

 dington, olim, and fields near Hamp- 

 ton Court ?). 



*JBetonica officinalis (field near Cranfovd 

 Bridge). 



*Cardamine amara (Hanworth Bridge, 

 abundant). 



*Carex riparia ; *paludosa ; *hirta (Han- 

 worth Bridge). 



Dianthus prolifer (between Teddington 

 and Hampton Court). 



*Draba vernalis (walls Isleworth, and 

 bank, lower road, Teddington). 



*Erodium cicutarium (walls Isleworth, 

 and bank, lower road, Teddington). 



*Genista anglica (between Hospital and 

 Hanworth bridges). 



*bferanium molle ; *pusillus (walls Isle- 

 worth, and bank, lower road, Tedding- 

 ton). 



*H>ttonia palustris (in the Cran at Han- 

 Nvorth Bridge). 



*Hydrochavis Morsus-ranse (in the Cran 

 at Hanworth Bridge). 



*Lemna trisulca (Hanworth Bridge). 

 Littorella lacustris ? 



*Lysimachia vulgaris (Thames, Tedding- 

 ton). 

 Lythrum hyssopifolium ? (Hounslow 



; Heath, formerly ; the marshy corners 

 near the bridges may be searched fur 

 this little plant). 



*Myosotis versicolor (banks, roadside). 



*Nuphar lutea. 



*Papaver dubium (walls, Isleworth). 

 *Potamogeton pusillus ; *luco,ns (Tha- 

 mes) ; *natans (Hanworth Bridge). 

 Rubus rhamnifolius ; Koehleri; Lind- 



leianus ; glandulosus. 

 *Salix purpurea (Mother Ives Bridge ; 



Thames at Twickenham; *Hospital 



Bridge; Hanworth Bridge); *fragilis, 



&c. 

 *Saxifraga tridactylites (walls, Sion 



House). 

 *Scabiosa succisa (meadow near Cranford 



Bridge). 

 *Sedum acre (lower road, Teddington); 



album (walls between Isleworth and 



Brentford). 



*Sium angustifolium (Cranford Bridge). 

 Teesdalia imdicaulis (Hampton Park). 

 *Typha latifolia ; *angustifolia (Cranford 



Bridge). 



*Valerianella olitoria (roadsides). 

 *Vicia lathy roides (roadsides). 



CRYPTOGAMS. 



Asplenium Ruta-muraria (Teddington 



church). 



Confervie (in the Cran). 

 *Homalothecium sericeum (walls at Bushy 



Park gateway). 

 Leskea polycarpa (trunks of Willows, 



Chiswick). 

 *Thuidium tamariscinum, with other 



common Hypna (roadside between 



Hospital and Hanworth bridges). 



16. PINNER AND OXHEY WOODS, MEADOWS ABOUT PINNER 

 AND RUISLIP, RUISLIP RESERVOIR. 



About Pinner the country assumes a more hilly aspect than that which 

 obtains immediately west of the metropolis, Harrow Hill being merely 

 an isolated elevation in advance of the ridge which separates the valley of 

 the Colne from that of the Brent. In the low-lying meadows hereabouts 

 and at Ruislip the substratum is clay, but chalk underlies the gravel upon 

 the hills beyond. Ruislip reservoir is - a considerable piece of water, with 

 reedy margins, and a wood on its eastern borders. 



