126 4. CRUCIFER.E. 



about Bristol, will be foimd in "^South Wales, in some less 

 questionable spot than that of a ballast bank. 



72. COCHLEARIA OFFICINXLIS, Limi . 



Area, general (around the coast) . 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Shetland, Orkney, Sutherland. 



Estimate of provinces 18. Estimate of counties 50. 



Latitude 50 — 61. British type of distribution. 



Agrarian region. Inferagrarian — Superagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends, on the coast level, to Shetland. 



Range of mean annual temperature 52 — 46. 



Native. Littoral. Pretty frequent round the coast of 

 Britam though doubtless the name is often applied to one 

 or other of the following varieties or sj^ecies, by which this 

 is made to appear proportionally more common. Here, I 

 restrict the name of ' officinahs' entirely to the shore plants, 

 and to those merely natm-alised inland, through cultivation ; 

 not feeling satisfied that any of the wild inland and momi- 

 tain examples really belong to the fonn here intended 

 under that name. Still, while deeming it better to treat 

 then* distribution separately, I am fai* fi'om satisfied that all 

 foin: are not forms of a single species. By C. officinalis, I 

 understand the shore plants with globose silicles ; but I 

 cannot say what forms other botanists may include under 

 the same name. 



