310 DECANDRIA— TRIGYNIA. Arenaiia. 



A. fastigiata. Engl. Bof. v. 25. f.\744. Comp.70. Hook. Scot. \ 38. 

 A. fasciculata. Jacq. Austr. v. 2. 49. 1. 1 82. Don H. Brit. 136. 

 Alsine n. 870. Hall. Hist. v. 1.384. t. \7.f. 2. 

 Stellaria rubra. Scop. Cam. v. 1. 316. <. 17. 



On the Highland mountains of Scotland. 



On rocks on the mountains of Angusshire and Fifeshire. Mr. G. Don. 



Annual. June. 



Root smallj tapering and zigzag. Stems either solitary or nume- 

 rous, 4 or 5 inches high, alternately branched, leafy, round, 

 nearly smooth, often purplish. Leaves very slender, smooth, 

 erect, permanent ; dilated, combined, and 3-ribbed at the base. 

 Fl. in forked, level-topped, crowded panicles. Calyx-leaves all 

 nearly equal, smooth, taper-pointed, remarkable for tlie great 

 breadth of their ivory-like lateral ribs. Pet. much shorter than 

 the calyx, white, obtuse. Stam. 10, rather longer than the 

 petals. Caps, oblong, of 3 valves. .Seeds compressed, beautifully 

 toothed like a wheel, each on a long slender stalk. 



The true A. fasciculata is very different in several respects, espe- 

 cially in the long unequal leaves of the culijx, whose lateral ribs 

 are not dilated. 



7. A. ciliata. Fringed Sandwort. 



Leaves spatulate, roughish; fringed at the base. Stems 

 numerous, branched, jDrocumbent, downy. Flowers ter- 

 minal, solitary. Calyx-leaves with five or seven ribs. 



A. ciliata. Linn. Sp. PL 608. mild v. 2. 718. Engl. Bot.v. 25. 

 t. 1745. Comp. 70. Wulf. in Jacq. Coll. v. 1. 245. t. 16. /. 2. 

 Fl. Dan. t. 346. 



Alsine n. 876. Hall. Hist. v. 1. 386. i. 17./. 3. 



A. serpilli folio, multicaulis et multiflora. Segu. Veron. v. 1. 420. 

 t.b.f.2. 



On mountains in Ireland. 



Upon the limestone cliff's of a high mountain adjoining to Ben 

 Bulben, in the county of Sligo. Mr. J. T. Mackay. 



Perennial. August, September. 



Root copiously branched at the crown, with very numerous re- 

 cumbent, leafy, round, downy stems, about a finger's length at 

 most, composing dense, bright ijreen tufts. Leaves in pairs 

 crossing each other, recurved, spatulate, obtuse, single-ribbed, 

 somewhat fleshy, roughish ; tapering, and most evidently 

 fringed, at the base. Fl. terminal, large and conspicuous, on 

 long, mostly solitary, stalks, clothed with short recurved hoary 

 pubescence. Calyx-leaves ovate, acute, concave, hairy, green", 

 with a strong keel, and 2 or 3 close ribs at each side ; the mar- 

 gin membranous. Pet. of a brilliant white, spreading, longer 

 than the calyx. Caps, short, ovate, of 6 valves. 



A. multicaulis of Linnreus appears to me the same plant in a less 



