4. CRUCIFER.E. 139 



Range of mean annual teniperatui'e 52 — 37. 



Native. Riipestral, &e. Under existing doubts respect- 

 ing the specific identity or distinctness of these two plants, 

 I should have prefeiTed to show their distribution separate- 

 ly, could this have been done with any near approach to 

 exactness. But the locahties of C. sylvatica have doubtless 

 been often recorded, in catalogues and Floras, xmder the 

 name of C. hii-suta ; and even with the specimens before 

 me, I hesitate under which name to put several of the bo- 

 real and mountain localities. In my own coimty of Smrey, 

 I find no such difficulty with the wild plants from walls or 

 stream-sides. The plants of the two forms, raised fi-om 

 seeds brought fi^om their wild localities, ai'e also sufficiently 

 distinguishable by then- leaves, in my garden ; though the 

 differences are less decided, when thus growing, the one 

 in less diy, the other in less humid situations. 



<'''/-^, 



87. Cardamine impatiens, Linn. 



Area 1 (2) 3 * 5 ^ 7 8 [9] 10 * [12 13 ^ * 16]. 



South limit in Surrey and Somersetshire. 



North limit in Yorksliire and Denbighshire. 



Estimate of pro\inces 6. Estimate of counties 10. 



Latitude 51 — 55. Local type of distribution. 



Agi'arian region. Inferagrarian — Midagrarian zones. 



Descends to .^ (Below 100 yai'ds ?) 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperatm-e 48 — 46. 



Native. Rupestral. I have seen examples of this spe- 

 cies in or from the counties of SmTey, Gloucester, War- 

 wick, Worcester, Denbigh, Derby and York. It is report- 

 ed, on good authority, from Somerset, Salop and Mont- 

 gomery. I fear that the localities in several other coun- 



