154 THE LIFE AND WORK OF GEORGE DON. 
61. Cerastium alpinum, Eng. Bot., ¢. 472; Fl. Dan., t. 6; Lightt,, 
PE See, tf. 70, 
C. latifohum, Lightf. 
Found on Ben Lomond; Ben Lawers; and Loch-na-Gare 
The distinguishing mark ‘between this and C. lattfolium [C. 
arcticum], which I have been enabled to discover in their native 
_ situation, where they are often intermixed, and approach each 
other in habit, is that in the C. ron age the stamina are longer 
than the pistilla, and that in the C. alpinum, the pistilla are 
double the length of the Bee 
62, —— latifolium, Exg. Bot., ¢. 473; Jacq., Coll. 2, p. 256, 
es on Ben Lomond; Ben Lawers; and other mountains 
of Breadalbane; Ben-a-conich [Ben Chonzie] ; Ben Vorlich ; 
mountains of Clova in Angusshire ; Loc “na a-Gare ; and 
Cairngorm 
[The specimens are not in good condition and I should refer 
them to C. alpinum var. lanatum(Lam.), rather than to 
arcticum. They are not the C. /atifohum, L. nor Jacq.—G. C. 
63. Bartsia alpina, — Bot., t. 361; Fl. Dan. ¢. 4o3; Pluk., 
Phytogr., t. 763, f. 5! 
The Rev. Mr. Harrison [Harriman] collected specimens 
of this plant near Middleton in Teesdale, and obligingly com- 
municated them to me. I discovered this Bartsia on rocks on 
first time, I believe, it had been observed in Scotla 
communicated it to Mr. Dickson of Covent Garden in company 
h ungo Park and Mr stin, gue Lar of Glas- 
1792. Also Sate ~tg Mr. James Mackay in several places in 
[The Irish ae is not alpina, but B. viscosa —G. C. D.] 
64. Arabis eee eh Teg yb iiogrs 170, 7: 3? Fl. Dan., t. 386; 
Dill. 61, f. 71; Eng. Bot., t. 69. 
Cardamine petrea, Ae and. With. 
b. Cardamine hastulata. 
Cardamine petrea, Lightf., Fl. Scot., t. 15, f. 2. 
N.B.—The right-hand or outer specimen is the var. 0. 
The first variety I observed on rocks a among tiesto by 
the head of Loch Awen; on the mountains of Cairngorm in 
Inverness-shire. It has iss. been found bi Pruieaese ¢ Beattie 
on rocks by the side of the river Dee, near Pananach Wells, 
Aberdeenshire. The variety b. I found among stones and 
