44. COMPOSITE. 95 



retire fi'ora them by its summer level, still leaving the roots 

 in damp if not humid ground. 



620. Chrysocoma Linosyris, Linn. 



Area 1 [2] * * * * 7. 



South limit in Devon. [Dorset } Sussex ?] 



North limit in Caeman'on. 



Estimate of provinces 2. Estimate of counties 3. 



Latitude 50 — 54. Atlantic tj-pe of distribution. 



Agi-aiian region. Inferagrarian zone. 



Descends to the coast level, in the Peninsula. 



Ascends to a slight elevation. 



Range of mean annual temperature 52 — 49. 



Native. Rupestral. Berry Head, in Devon, Worle Hill, 

 in Somerset, and Onnes Head, in Caernai'vonshire, are the 

 known and certain localities ; unless it may have lately be- 

 come extinct in the second habitat, where it was sought 

 unsuccessfully by Dr. J. D. Hooker, about 1846. A speci- 

 men was brought to the Rev. A. Bloxam, by a lady who 

 had found it on Portland Isle ; and a single plant of it was 

 found by Sir W. C. Trevelyan, in 1825, between Brighton 

 and Shoreham. 



621. DiOTis MARITIMA, Cass. 



Area 1 2 3 4 ^^ * 7. 



South limit in Cornwall ? Devon .? Dorset ? Kent ? 

 North limit in Suffolk, Anglesea. 

 Estimate of provinces 3. Estimate of counties 4. 

 Latitude 51 — 54. English type of distribution. 

 Agrarian region. Inferagi-arian zone. 



