302 58. PRIMDLACE^. 



Range of mean annual temperature 51 — 47. 



Colonist. Agrestal. Scarce, and apparently fugitive ; 

 soon disappearing again from many of the places in which 

 it has been seen once or occasionally. Much difference of 

 opinion has prevailed respecting the distinctness of this 

 plant from the A. phcenicea, or red-flowered A. ai"vensis. 

 An idea has been suggested by Mr. Borrei', that there 

 are really two species, each of which may vary vdth red or 

 blue flowers. Analogy favours this view; and it meets 

 some difficulties about the supposed two species, which 

 caimot conveniently be entered upon here. For some ex- 

 periments of sowing seeds of A. caerulea, references may 

 be made to the Magazine of Natural History, v. 493, and 

 viii. 634 ; also to Phytologist, i. 164. 



891. Anagallis tenella, Linn. 



Area 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 * 18. 



South Umit in Cornwall, Isle of Wight, Kent. 



North limit in Shetland, Orkney, Hebrides. 



Estimate of provinces 18. Estimate of counties 75. 



Latitude 50 — 61. British type of distribution. 



Agrarian region. Inferagi-arian — Superagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 200 or 300 yards, in same province. 



Range of mean aimual temperatm'e 52 — 45. 



Native. Uliginal. Although so widely spread through 

 Britain, that there can be no hesitation in refening this 

 plant to the British type of distribution, it yet has so much 

 of the insular or occidental and austral prevalence, as to 

 suggest an affinity with the plants of the Atlantic type. 

 This affinity becomes much more evident when we em- 

 brace a wider area ; for, while the species passes north- 



