1857.] HERTS FLORA. 199 



St. Lawrence, and the lodge-gate of Lamer Park, and in one or 

 two adjoining fields, plentiful. 



p. 139. (Additional species.) Galium anglicum. Old wall of 

 Brockett Park, above Lemsford Mills. 



p. 139. Galium tricorne. Pields near Ayott St. Lawrence. 



p. 142. Dipsacus pilosus. Footway behind the Flint Bridge, 

 Brockett Park. 



p. 146. Centaurea [nigra?'], var. radiata. Hill-end Farm, 

 Sandridge. Mackery-end Fields, Wheathamstead. Bride HaU, 

 near Ayott. — My own idea of this is, that it is a hybrid between 

 C scabiosa and C. nigra, and I never saw it but in companion- 

 ship with those species. Plants from the above three stations 

 agree pretty well with specimens I possess, labelled " Centaurea 

 nigrescens, Malvern, Mr. Koby^^ [vide ' Phytologist,^ o.s., vol. ii. 

 p. 924). 



p. 149. Cnicus acaulis. Plentiful on No-man^s Land, common. 



p. 154. Tragopogon porrifolius. Hill-end, Sandridge, rare. 



p. 160. Hieracium sylvaticum, with H. boreale. DowdelFs 

 Wood. 



p. 168. Anthemis arvensis. Hill-end Farm, Sandridge, plen- 

 tiful, 1856. 



p. 170. (Additional species.) Achillea serrata. A few plants 

 of this about Ayott Green and neighbourhood, flowering freely, 

 1856. 



p. 170. Artemisia Absinthium. Between Water-end and 

 Brockett Park. 



p. 176. Campanula glomerata. Abundant and very fine in 

 the churchyard, Ayott St. Peter. 



p. 185. Vinca minor. Wheathamstead Hill. 



p. 186. Menyanthes trifoliata. Near Marford Bridge, flower- 

 ing plentifully, 1857. 



p. 187. Gentiana ? The Messrs. Thrale, of No-man's 



Land, lately informed me that they found a Gentian with vet'y 

 large blue flowers growing on Bower Heath some years ago : 

 could this have been G. Pneumonanthe ? They did not preserve 

 their specimens, nor have I yet been able to go in search of it. 



p. 187. Gentiana Amarella. Chalk-pit between Abbot's Hay 

 Farm and Codicote Bottom. 



p. 187. Gentiana campestris. This flowered in the No-man's 

 Land station in 1856. 



