ADDITIONAL SPECIES, ETC. 327 



present known of his conduct, or any necessary inference 

 from knoAvn facts, would sufficiently warrant us in charging 

 him with intentional deception or wilful falsehood. My 

 individual impression is, that George Don's reports of 

 si^ecies and stations, though many of them were doubtless 

 correct, cannot safely be relied upon in strict science, 

 unless confirmed afresh ; but that a fair degree of moral 

 confidence should still be given to his statements. The 

 Cumberland station is true in regard to the species, and 

 those botanists who have seen it (Mr. Mathews, Mr. D. 

 Oliver, &c.) do not express any distrust of the nativity of 

 the plant there. (See vol. i. page 204.) 



194. Cerastitjm semidecandrum, Linn. 



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



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Shetland, ? 



Estimate of provinces 17. Estimate of counties 75. 



Latitude 50 — 61. British type of distribution. 



Agi'arian region. Inferagrarian — Sui)eragrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperature 52 — 45. 



Native. Glareal, Eupestral. In the first volume of 

 this work, page 228, the names of five alleged species of 

 Cerastium were grouped together, on accovmt of the im- 

 possibility of sei)arating the localities of these supposed 

 sjjecies, so as to refer them correctly and respectively to 

 each one species apart from the other four. Since the 

 date of volume first Mr. Babington has admitted that his 

 C. atrovirens is C. tetrandrum ; and his C. pedunculatum 

 also has been quite abandoned as a species. Thus, we 



