112 ANNALS OF SCOTTISH NATURAL HISTORY 



ground and rocks (" PI. Pe rthsh." 84). Near the summit of Ben 

 Lawers (Wm. Gardiner, 1842, in Herb. Brit.). Abundant on 

 the ridges of Ben Dearg (in Ross-shire), and on two other hills in 

 the district, up to iioo m. (G. C. Druce in "Ann. Scott. Nat. 

 Hist." 1903, p. 228). Syn. Cherleria sedoides, L., " Sp. Plant." 

 4 2 5 ( 1 753)> Mcchriugia sedoides, Clairv., "Man. Herb." 150 

 (1811); A. Cherleria, Petermann, " Deutschl. Fl." 85 (1846-1849); 

 A. Cherleriana, Saint- Lager, in "Ann. Soc. Bot. Lyon," vii. 144 

 (1880). 



86. Alsine rubella, Wahlenb. " I found the plant upon Ben 

 Lawers in Breadalbane, and I never observed it anywhere else. 

 I believe it to be new to Britain. I first found it in 1793 in 

 company with Mr. John Mackay " (G. Don, mss. in Herb. Mus. 

 Brit.). This label is attached to specimens in Sowerby's herbarium, 

 used for the figure in " Engl. Botany Suppl." t. 2638 ; where after 

 the description D. Don writes, " Found by the late Mr. J. Mackay 

 and Mr. G. Don, many years ago on the summit of Ben Lawers." 

 To these specimens G. Don gives the provisional name of Arenaria 

 alpina. Alsine rubella first appears as a British plant in Smith, 

 "English Fl." ii. 309 (1828). Rocks on the summit and above 

 the loch of Ben Lawers (G. Don, J. Mackay, 1794, and Wm. 

 Gorrie, 1840, in Herb. Brit). The south limit of the plant in 

 Europe is on the summit of Craig-na-Caillich, above Loch Tay, 

 Perthshire, at 912 m. (R. K. Greville, 1824, in Herb. Bot. 

 Gard. Edinb.). A more recent record is " on rocks near the 

 summit of Ben Lawers " (R. Lindsay in " Trans. Proc. Bot. Soc., 

 Edinb." xxi. 104 [1898]). Fenzl, in Ledebour, " Fl. Rossica," i. 

 347-350 (1842), has included under Arenaria verna, L., a great 

 many forms and species distinguished by different authors. The 

 large-flowered typical form of A. rertia, such as is found in 

 the Swiss and Italian Alps, is not found in arctic regions, but there 

 are in the Alps other forms which connect it with the arctic forms. 

 Among such arctic forms it is not possible to group the plants and 

 separate them by definite characters. In the driest stations the 

 plant appears as var. rubella, generally even smaller and with shorter 

 peduncles, as the figure of Wahlenberg shows. In somewhat 

 moister and looser soil, it gets longer internodes, more leafy 

 branches and longer flower-stalks, which are often 2- to 3-flowered, 

 that is to say, it goes over to var. hirta Gurke (= Alsine hirta, 

 Hartman [1838]). The above critical note is taken mainly from 

 Mr. H. G. Simmons' interesting remarks on the species in his " Fl. 

 of Ellesmere Land" (1906). 



87. Sagina procumbens, L. Ascends to 1006 m. on bare 

 ground on the mountains of the Breadalbane district ("Fl. Perthsh." 

 86), such as Ben Ein (E. S. Marshall, 1889, in Herb. Brit.). 

 Descends to sea-level in Cork. 



