240 TETRANDRIA— TETRAGYNIA. Sagina. 



their membranous bases, three-ribbed, linear, about half an inch 

 long, smooth in every part, obtuse, with a very minute bristly 

 point. Flower-stalks longer than the leaves, smooth. Ft. droop- 

 ing, with white roundish petals. Seeds extremely minute. The 

 late Rev. H. Davies gathered on a green near Beaumaris, in 

 July 1817, a very pretty variety, with rose-like double Jloivers, 

 of from 27 to 32 petals. This has found its way into some curious 

 gardens. 

 A different synonym of Tournefort is quoted in the Prodr. Fl. Grcec. 

 which nevertheless is correct, though the above ought also to 

 have been noticed. 



2. S. marilima. Sea Pearl- wort. 



Stems nearly upright, divaricated, smooth. Leaves obtuse, 

 without bristles. Petals none. 



S.maritima. Don H. Br. 155. Engl. Bot. v. 31. t. 2195. Comp.28. 

 Hook. Scot. 60. Lond. £.115. 



On the sea coast of Scotland, as well as of England and Ireland, 

 also on the Highland mountains. 



On the coast near Aberdeen, and on the summit of Ben Nevis. 

 Mr. G. Don. At Bally-castle, near the Giant's causeway, Ire- 

 land. Mr. R. Brown. On Hartle-pier, Durham. Mr. Winch. 

 In salt marshes at Southwold, Suffolk, abundantly. Professor 

 Hooker. 



Annual. May — August. 



Root tapering, fibrous below. Stems numerous, 2 or 3 inches 

 high, spreading at the bottom, but otherwise erect, branched, 

 leafy, round, smooth, often purplish. Leaves scarcely half the 

 length of the former species, but broader in proportion, thick 

 and blunt, often tipped with a minute point, but no bristle ; com- 

 bined by their membranous bases, and sometimes fringed there- 

 abouts. Flower-stalks slender, erect, smooth, usually an inch 

 long. Calyx-leaves broadly ovate, obtuse, with a white mem- 

 branous edge. Petals abortive, or entirely wanting. Capsule 

 rather longer than the calyx. 



Mr. Don found sometimes 8 stamens. Professor Hooker says the 

 petals are entirely wanting, nor can I find any. The edges of 

 the calyx are occasionally violet-coloured. 



3. S. apetala. Annual Small-flowered Pearl- wort. 



Stems nearly upright, hairy. Leaves bristle-pointed, fringed. 



Petals obsolete, or wanting. 

 S. apetala. Linn. Mant.2. 559. Willd. Sp. Pl.v. 1. 719. Fl. Br. 



199. Engl. Bot. v. 13. t. 881. Curt. Lond.fasc.5. t. 14. Dicks. 



H. Sicc.fasc.3. 6. Hook. Scot. 60. Don H. Br. 15G. Arduin. 



Spec. 2. 22. *. 8./. 1 ; bad. 

 Saxifraga anglica alsinefolia annua. Rati Syn. 345. 



