ADDITIONAL NOTES, ETC. 381 



yards ", wliich is the indication given in the first volume. 

 The county of Aberdeen may be added to the north limit, 

 and that of Sussex to the south limit, according to the 

 rule explauied on page 68. 



6G. Iberis amara, vol. i. p. 123. 



Provinces (7 8) may be added to the area ; but only for 

 the plant as an alien, or waif from cultivation. 



68. Lepidium Draba, vol. i. p. 124. 



The counties of Surrey (Mr. Borrer !) and Essex (Mr. 

 Varenne !) may be added to those casually producing this 

 species. 



72. d. Cochlearia anglica, vol. i. p. 128, 



Province 12 may be added in the area, on faith of Mr. 

 Alton's list. And the south limit may be contiuued into 

 Cornwall, on authority of Mr. Pascoe. 



73. Armoracia rusticana, vol. i. p. 129. 



An erudite paper on the names and native habitat of 

 this plant, from the pen of M. Alphonse DeCandoUe, was 

 published in the Bibliotheque Universelle de Geneve, 

 1851, and translated in the Botanical Gazette, vol. iii. p. 

 141. From a series of data, admirably chosen and ar- 

 ranged so as to bear clearly and strongly upon the ques- 

 tion of country, M. DeCandolle concludes that the species 

 was probably of eastern origin, extending from Finland 

 into Euroj)ean Turkey and South-east Eussia, and that it 

 is only an immigrant or introduced alien in western 

 Europe. 



74. Siibularia aquatica, vol. i. p. 129. 



Province 13 is to be added in the area, on authority 

 of Mr. William Stevens, in Phytologist iii. 390. The 

 provincial estimate will thus be raised to 6, and the comi- 

 tal estimate may be taken at 12 or 15. Among 13 

 counties on record it is probable that 1 1 may be correct ; 



