4. CRUCIFER.E. 127 



72, b. CocHLEARiA ALPiNA, (Sweet?) 



COCHLEARIA GRCENLANDICA, (With.?), SlH. 



Area * [2] * ^ * * 7 8 * 10 11 12 [13] * 15 16 * 18. 



South limit in Caemai'vonshire and York.sliii'e. 



North limit in Moray, West Inverness-shire, Shetland ? 



Estimate of provinces 9. Estimate of counties 20. 



Latitude 53 — 61. Highland type of distribution. 



A. A. regions. Superagraiian — Superai'ctic zones. 



Descends to the coast level, in Shetland ? 



Ascends to 1300 yards, in East Highlands. 



Range of mean annual temperatm-e 45 — 34. 



Native. Rupestral. Under this head I intend certain 

 moimtaia examples of a Cochlearia, which have often been 

 refeiTed to C. officinalis, frequently also to C. gi-oenlandica, 

 occasionally to C. danica. Though a variable plant, and 

 mimicking the shore examples both of officinalis and danica, 

 here of one, there of the other ; yet, on the whole, it ap- 

 pears to myself to come nearer to danica than to officinalis, 

 cliiefly by the more elliptic silicle and angular leaves. It 

 is doubtless the C. officinalis, var : alpina, of Babington's 

 Manual ; though probably including also fonns which that 

 author would deem to be C. officinalis in its more typical 

 state. 



72, c. Cochlearia danica, Linn. 



Area 1 2 3 4 (5) 6 7 * 9 * 11 12 * 14 15 16 * 18. 

 South limit in Cornwall, Isle of Wight, Kent. 

 North limit in Shetland (Neill ; Edmondston). 

 Estimate of provinces 15. Estimate of counties 40. 



