174 



A NEW LONDON FLORA. 



Orchis Morio (pastures) ; pyramidal! s 



(chalk pits). 

 Ornithogalum umbellatum (meadows by 



the Lea towards Ware). 

 Orobanche elatior (steep banks between 



the Ware road and Gallows Plain). 

 Papaver Argemone (fields N.W. of Hert- 

 ford, also on Gallows Plain and about 



Essendon). 

 *Parnassia palustris (Lea valley, several 



places ; Stanborough'; near Hatfield ; and 



between Cole Green and Hertingford- 



bury). 

 Phleum Boehmeri (near Hertford Union 



Workhouse, on a steep gravelly bank, 



road to Stanstead). 

 Petroselinum segetum (between Hertford 



and Hertingfordbury). 

 *Plantago media (chalk pits). 

 Potamogeton lucens ; crispus ; pusillus ; 



pectinatus ; densus (in the Lea). 

 *Poterium Sanguisorba (chalk pits). 

 Pyrus Aria (Hatfield Park) ; torminalis 



(Bayford). 

 Ranunculus parviflorus (Essendon, near 



the church and elsewhere about). 



Ruscus aculeatus (Mil wards Park Wood, 

 Hatfield ; woods, Essendon). 



Salix pentandra (riverside near Whit- 

 well). 



Saponaria officinalis (hedge near Rox- 

 ford Farm, Hertingfordbury). 



Saxifraga granulata (Mead Lane, Hert 

 ford, and meadows between Hertford 

 and Ware; road to Stanstead). 



Scabiosa arvensis ; Columbaria (about 

 Hertford). 



Scandix Pecten-Veneris (fields). 



Scrophularia vernalis (in Hatfield Park ; 

 also hedge near the gasworks, Hatfield) ? 



Sedum reflexum (Hertford Castle) ; Tele- 

 phium (near Hertford, Bayford, Essen- 

 don, &c.). 



Silybum Marianum (Ware road, field 

 between Gallows Plain and Ball's Park). 



Sisymbrium Irio (near the gasworks, 

 Hertford). 



Verbascum nigrum (about Hertford). 

 *Viburnum Lantana (about the pits, &c.). 



Vinca minor (Hertingfordbury Park and 

 in Mole Wood). 



Viola hirta (about the pits, &c.). 



71. UPPER COLNE DISTRICT. 



About Rickmansworth, Watford and St. Albans. Low chalk hills, capped 

 with gravel drift, impart to this section of the Colne districts an undu- 

 lating character. The river swollen by the Chess rivulet, and another 

 affluent from the Berkhampstead vale, which joins it at Rickmansworth, 

 is so far a considerable stream ; beyond Watford it is comparatively in- 

 significant. Meadows, often wet and moory, border it on either hand, and 

 produce one or two plants of rare occurrence. The hillsides, in places where 

 denuded of subsoil, are productive of chalk plants, which increase in fre- 

 quency further northwards in the direction of St. Albans ; but there are 

 no elevated downs similar to those of Surrey and Kent, nearer than Tring, 

 and the borders of Bedfordshire and Cambridgeshire. Only the more 

 ordinary plants of this formation are, therefore, to be met with in the 

 locality. 



In addition to many of the plants enumerated in section 32, the 

 following occur : 



Dipsacus pilosus (lane near Moor Hall). 

 Epilobium roseum (footpath to Scott's 



Bridge). 



Epipactis latifolia. 

 Genista tinctoria (common moor). 

 Helleborus viridis (lane S.W.). 

 Hieracium murorum (woods). 

 Hordeum sylvaticum (Hill Wood). 

 Lithosperinum officinale (Long Valley 



Wood). 



(Enanthe crocata. 

 Ophioglossum vulgatum (meadows). 



RICKMANSWORTH. 



Alchemilla vulgaris (common moor). 



Arabis perfoliata (Long Valley Wood). 



Asplenium Trichomanes (old wall be- 

 tween Moor Park and the Colne). 



Atropa Belladonna (woods). 



Chrysosplenium oppositifolium (mea- 

 dows below Coney Farm). 



Cynoglossum officinale (pasture behind 

 the Swan Inn). 



Dentaria bulbifera (Loudwater Wood, 

 and wood near High Wood). 



