96 DECANDRIA TRIGYNIA. [CI. 10. 



ish, smooth. Stems with a lateral hairy line, about two-flowered. 

 Calyx with a single downy rib. Flower-stalks downy. 

 Highl. of S. y. . 6. Stem diffuse, 3 — 4 in. with 1 — Supright white fl. 



236. ARENaRIA. Sandwort. 

 * Stipulas none. 



1. A. peploides, 3. 189. (Sea S.) Leaves ovate, acute, fleshy. Calyx 



obtuse, without ribs. 

 Sea coast. If . 6, 7. Hoot creeping. Herb smooth, recumbent. Fl. 

 few, white. 



2. A. trinervis,2\. 1483. (Plantain-leaved S.) Leaves ovate, acute, 



stalked, ribbed. Calyx obscurely three-ribbed, with a rough keel. 

 Bushy pi. . 5, 6. Weak, downy, erect, 1 f. Fl. small, white. 



3. A. serpyllifolia, 13. 923. (Thyme-leaved S.) Leaves ovate, 



nearly sessile, rough. Calyx hairy ; three outermost of its leaves 

 five-ribbed. 

 Dry sterile gr. 0.6, 7. Bushy, spreading. 3 — 4 in. L. small. Fl. 

 white. 



4. A. tenuifolia, 4. 219. (Fine-leaved S.) Leaves awl-shaped, 



pointed. Stem panicled. Capsules erect, of three valves. Petals 

 lanceolate, shorter than the calyx. 

 Walls and sandy fields. © . 6. Erect, slender, smoothish. Pet. 

 small, white. 



5. A. verna, 8. 512. (Vernal S.) Leaves awl-shaped, bluntish. Stem 



panicled. Calyx-leaves with three remote equal ribs ; longer 

 than the petals. 

 Mount, past. V-. 5 — 8. Tufted. Fl. white. 



6. A. rubella, Suppl. 2638. (Little Red S.) Leaves awl-shaped, 



bluntish. Sterns single-flowered. Calyx-leaves with three equal 

 ribs ; longer than the petals. 

 Breadalbane Mts. V-. 6. In dense tufts. Stem 2 — 4 in. 



7. A. fastigiata, 25. 1744. (Level-topped S.) Leaves awl-shaped. 



Stem erect, straight, densely corymbose. Petals very short. 

 Lateral ribs of the calyx dilated. 

 Scot. mt. © . 6. Fl. small. Seeds beautifully toothed, like a wheel. 



8. A. cilidta,25. 1745. (Fringed S.) Leaves spathulate, roughish ; 



fringed at the base. Stems numerous, branched, procumbent, 

 downy. Flowers terminal, solitary. Calyx-leaves with five or 

 seven ribs. 

 Mount, in Ireland. %. 8. Roughish. Fl. large; stalks finely hairy. 



** Stipulas membranous. 



9. A. rubra, 12. 852. (Purple S.) Leaves linear, bristle-pointed. 



Stipulas membranous, sheathing. Seeds compressed, angular, 

 roughish. 

 Sandy fields. 0. 7, 8. Stems prostr. L.flat. Fl. brill, light purple. 



10. A. marina, 14. 958. (Sea Spurrey S.) Leaves semicylindrical, 

 fleshy, pointless. Stipulas membranous, sheathing. Seeds com* 

 pressed, bordered, smooth. 



