176 The Scott is I 1 Naturalist. 



THE BOTANICAL WOKK 01 GEORGE DON OFUPOBPAB. 



By G. C. DRUCE, F.L.S. 

 ( Continued from page 129.) 



Rapistrum orientale, D. C. 



Prov. 15. "Forfar. G. Don the sole authority. Error?" 

 Cyb. 1, 136, "The Myagrum orientale of his list." C. C. Brit. 



" Native in Attica., Pelop, Italia mer. and mid, Corsica, Sardinia." 

 Nyman Sylloge. 

 Neslea pa?iiculata Desv. 

 Forfar ? 



Afyagrum paniculata of Don's Forfarshire list. C.C.Brit. This 

 is included in his fasciculus, being No. 91. 



This and the foregoing plant were merely casuals, the latter still 

 is occasionally found in various parts of Britain (near Aberdeen in 

 July, 1883. Ed. Scot. Nat.) "Eur. omn. exc. Brit., Norv. plur. 

 Suec. bor., Fenn. Ross, bor." Nyman Sylloge. 

 Arabis ciliata. 



"Incog. The late Geo. Don found an Arabis, which he calls 

 Turritis ?iov. sp., near Loch Lee, by Glen Esk, growing on rocks, 

 and he states that Mr. J. T. Mackay recognises it as the same 

 which he had found in Ireland. In Flora Scotica the Glen Esk 

 plant is referred to ciliata, but it does not appear that the author 

 had seen a specimen from Don. The probability seems strong 

 that A. liirsuta, which occurs on the mountains of Forfar, was 

 mistaken for alpina or ciliata." Cyb. Brit. 1,142. 



"On rocks in Glen Esk, Loch Lee, 1801, Mr. G. Don. — This 

 rare rock cress Mr. Don considered to be a new species at the 

 time of its discovery, but Mr. Mackay, on a visit to him at Forfar 

 in 181 1, identified it as the same he had gathered in Ireland, and 

 Sir J. C. Smith pointed out its synonyme." Gard. Fl. F. 14. 



In Miss Palmer's collection is a specimen labelled in the 

 Countess of Aylesford's writing, Turritis alpina, from the Glen Esk 

 locality. This was sent in a fresh state to her by Don. The 

 plant is certainly not A. ciliata, nor does it appear to me to differ 

 from typical A. hirsuta, except in being more glabrous, the hairs 

 over the leaves being long and distant from each other ; the root- 

 leaves are distinctly petiolate ; nor is there the compact basal 

 rosette of glabrous leaves with ciliate margins typical of A. ciliata. 

 I have no doubt that Mr. Watson's suggestion is correct, and that 

 Mackay and Smith were wrong in referring it to ciliata. As is the 

 case with Canlochan Arabis liirsuta, the plant when growing seems 

 different from our lowland plant, the flowers being larger and more 

 spreading, but I do not doubt its identity with it. Still in Miss 

 Palmer's specimen Don must not be held strictly responsible for 

 its naming, as it is not in his writing, and Lady Aylesford may, but 

 most unlikely, have transposed specimens. 



