ADDITIONAL NOTES, ETC. 471 



with the error, it may be well to note here that the 

 station of " East Hill, Hastings, Sussex," was recorded by 

 Mr. Maw in the Botanical Gazette, vol. i. p. 307. But 

 in vol. iii. p. 98, of the same periodical, Mr. Borrer inti- 

 mated that V. arvensis only, not V. verna, could be found 

 in the place so reported. The Channel province [2] 

 is thus shown to be only an erroneous record for V. 

 verna. 



763. Bartsia alpina, vol. ii. p. 204. 

 According to information derived from Mr. J. G. Baker 

 and Mr. D. Oliver, some changes will requii'e to be made 

 in the formula of distribution. The sixth line may run 

 thus, "A. A. regions. Superagrarian — Midarctic zones." 

 The next line will be, " Descends to 500 yards in Tyne 

 (J. G. Baker)." And the succeeding one, " Ascends to 

 700, probably to 1000 yards, in E. Highlands." The 

 range of mean annual temperature may be indicated at 

 43 — 38 ; the former number being misprinted 48 on page 

 204 of volume second. The situation is ' Uliginal,' rather 

 than ,' Euj)estral.' At first thought these terms would 

 seem widely different in signification ; and so in fact they 

 are. Yet it is occasionally difficult to apply the terms 

 distinctively to the arctic species ; several of them gi'ow- 

 ing in crevices of rocks, filled with loose boggy mould, 

 and over or through which water is usually trickling 

 down. Strictly, these are still ' uliginal ' plants ; but 

 their places of growth being usually described as "rocks," 

 the term ' rupestral ' scarcely apj)ears a misapplication, 

 unless the occurrence of the same species also in boggy 

 places, away from rocks, directs attention to it, and gives 

 the explanation. Veronica alpina is a somewhat similar 

 instance with the Bartsia alpina. In the genus Saxifraga, 

 we may get a series that glasses from the rupestral to the 



