176 ANNALS OF SCOTTISH NATURAL HISTORY 



R. villicaulis, siibsp. Selmeri. [R]. 



R. hirtifolius. C. H. Waddell, "Add. Rec. 1899." 



var. danicus. R. 



R. corylifolius. Hopkirk, in " Fl. Glott." 1813; C. H. Waddell, 

 "Add. Rec. i8 99 ."--R. 

 var. sublustris. (R). 



R. saxatilis. Hopkirk, in " Fl. Glott." 1813; "Kennedy, Cata- 

 logue," "Top. Bot."--R. 



R. Chamsemorus. Hopkirk, in "Fl. Glott." 1813 ; "Top. Bot."--R. 



(To be continued?) 



ERICA STUARTI, NOV. HYBR. 

 By E. F. LINTON, M.A. 



IN a notice of the late Dr. C. Stuart in the last number 

 (p. 65), Erica Tetralix Stuarti is said to commemorate 

 " his discovery of a very distinct subspecies of heath in 

 Connemara." I understand that this view obtained at first ; 

 but when I received specimens nearly two years ago from 

 Mr. W. B. Boyd, I learnt that he and Dr. Macfarlane con- 

 sidered the Erica to be a hybrid of E. Tetralix and some other. 



On examination I was convinced that the new heath 

 was a hybrid between E. mediterranea, L. (E. Jiibernica, 

 Syme) and E. Mackaii, Hook. ; and Dr. Stuart, on seeing 

 my opinion and comments, wrote to me at once that he was 

 disposed to consider it the correct one. But it does not 

 appear that this opinion or any description of the plant has 

 been put on record. 



Unlikely as this combination would be, on account of the 

 difference in the flowering season, the dark brown anthers, 

 distinctly though slightly exserted in E. Stuarti, can only be 

 accounted for by descent from E. mediterranea ; the narrow 

 corolla and its pale colour in the lower part afford strong 

 confirmation ; and though the species is normally a spring- 

 flowering one, the flowers are apt to linger on, or else the 

 plant flowers again, as I have witnessed in my own garden. 



Then E. Mackaii seems to be required as the other 

 parent rather than E. Tetralix by the hairy stem or at least 

 young twigs, by the broad leaves, which are almost identical 

 with those of E. Mackaii in shape and clothing, and perhaps 

 as well by the colouring of the upper part of the corolla and 



