1857.] HERTS FLORA. 197 



generating in this country, will at length give us both male and 

 female plants ; after which we shall be able to solve the problem 

 whether, when its natural and normal state is thus restored, its 

 present apparently abnormal vigour of increase may not abate, 

 and we may not see it take its place among our uliginous aqua- 

 tics, dividing with them the empire of the waters, instead of, as 

 now, challenging and all but achieving the exclusive dominion. 

 I would therefore suggest to my brother botanists throughout 

 England to have an eye to the Anacharis during its period of 

 flowering, in order to see whether a sport of the kind indicated 

 may not be found in some of its very numerous habitats. 



Yours obediently, 



W. Marshall. 



My, July 14, 1857. 



HERTS FLORA. 



Additions to the 'Additional Supplement to the Flora Hertfordi- 

 ensis.' {Vide ' Phytologist,^ n. s. vol. ii. p. 156, etc.) By 

 Edward Edwards. 



P. 8. Helleborus viridis. Dowdell's Wood, Ayott St. Peter. 



p. 9, Aquilegia vulgaris. Ayott St. Lawrence. 



p. 14. Papaver Argemone and dubium. HiU-end Farm, near 

 No-man's Land, Sandridge. 



p. 15. Papaver sommferum. About the environs of St. Al- 

 ban's. 



p. 16. Corydalis lutea. Old wall, Codicote. 



p. 20. Barbarea prcscox. Occasionally about Marford, Wheat- 

 hamstead. 



p. 22. Cardamine sylvatica. Under hedges by the field-path 

 from Marford Bridge to Water- end Farm, plentiful. Berry green, 

 Wheathamstead. 



p. 27. Erysimum cheiranthoides. About the environs of St. 

 Alban's. 



p. 27. Camelina sativa. Borders of fields on Hill- end Farm, 

 Sandridge, plentiful, 1856. 



p. 29. Lepidium campestre. Sandridgebury Farm. 



p. 36. Parnassia palustris. Marshy meadow near Marford 

 Bridge, abundant, 1856. 



p. 38. Bianthus Armeria. Among the Broom between Mar- 



