Aretiaria.'] DECANDRIA — TUIGYNIA. 183 



lent and every where glabrous, and the calyx-leaves are broader and 

 obscurely ribbed. 



6. A. verna, L. (vernal Sandwort); stems numerous panicled 

 above, leaves subulate acute wheu dry 3-nerved, petals obovate 

 and as well as the capsule about as long as the lanceolate acu- 

 minated 3-nerved calyx. E. Bot. t. 512. 



Rocky and mountainous pastures, in the north of England and Wales ; 

 abundant on Arthur's Seat and in other places about Edinburgh ; Mael 

 Dun Crosk, Breadalbane ; not found at all in the west of Scotland. Fl. 

 May, June. 1^. — Steins 3 — 4 inches high, slightly hairy, as are the caly- 

 ces and peduncles. Lower leaves crowded, often curved. 



7. A. rubella, Hook, (alpine Saiidwort); stems numerous, 

 peduncles terminal downy single-flowered, leaves linear-subulate 

 obtuse 3-nerved, petals elliptico-lanceolate and as well as the 4- 

 valved capsule shorter than the lanceolate very acute 3-nerved 

 calyx. Hook, in Parrij's 2d. Votj. App. — in FL Land. N. S. t. 

 200. Don in E. Bot. Suppl. t. -'G38. — Alsine rubella, Wahl. — 

 Arenaria qiiadrivalvis, Br. 



Near the summits of the Breadalbane mountain?, among soil and 

 broken rocks ; very rare. On Craigalleach; Z)/- Earl. On Ben Lawers ; 

 first found, it now appears, by Mr Don ; since by Mr Murray, Br 

 Greville, and in one spot most abundantly by 3Ir W. Wilson and Dr 

 Graham. Ben Hope, Sutherland, Dr Graham. Fl. July. 1^.— This 

 is quite an alpino or arctic plant. It loves to grow with its root buried 

 under a loose piece of rock, and late in the summer often acquires a 

 reddish tinge. Stamens from a glandular disk. Styles 3, 4 or 3 ; the 

 valves of the capsule, consequently, equally variable. 



8. A. tenuifolia, L. (fine-leaved Sandwort); stems much 

 branched dichotomous panicled above, leaves narrow linear- 

 subulate, petals lanceolate much shorter than the narrow lance- 

 olate 3-nerved calyx, capsule 3-valved as long as the calyx. 

 £'.^0^.^.219. 



Sandy fields ; Norfolk, Cambridgeshire, Oxfordshire, &c. Cramond 

 Island, 'Firth of Forth ; and near Pettycur Harbour, Scotland ; 3Ir 

 Yalden and G. Don. Fl. June. Q.— Stems 4—6 inches high, gla- 

 brous ; throughout remarkably slender, especially the peduiicles. 



9. A. fastigidta, Sm. (level-topped Sandiuort); stems erect 

 straight, leaves fascicled subulato-setaceous erect, flowers fas- 

 cicled, calyx much acuminated (white) with two central (green) 

 ribs twice as long as the ovate petals. E. Bot. t. 1744. 



In Fifeshire and mountains of Angus-shire, Mr Don. Fl. June. 

 0. — Sir J. E. Smith rightly distinguishes i\\\s, \\\e A. fasciculata oi 

 Jacq., from the species so named by Gouan ; of which very rare plant 

 I possess Gouan's original specimen. Scottish individuals I have never 

 met with ; but, judging from the figure in E. Bot., I do not see how 

 this is to be separated from the A. mucronata of D C. (Alsine, Gouan). 

 It is very peculiar in habit and quite unlike any other British species. 

 The seeds " are beautifully toothed at the margin, each on a long stalk." 



** Stipules at the base of each pair of leaves. 



10. A. rubra, L. (purple Sandwort); stems prostrate, leaves 



