60 TETRAND. TETRAG. 



Two to four inches long. Leaves linear, subulate, connate, membranous 

 at the base, convex beneath, plane above, tipped with a short 

 point. Peduncles solitary, from the axils of the leaves and longer 

 than they. Flou-ers at first drooping. 



2. S. apetala {amuLal small-Jiowered Pearl-iuort), annual sub- 

 pubescent, stems erect, or procuiiibent only at the base, 

 leaves aristate, petals much smaller than thecal., caps. longer 

 than the cal. E. B. ^.881. Don's Fasc. 7. No. 156. 



Hab. Dry gravelly places, not unfrequent, G. Don. Fl. May, June. 



O. 

 More slender and of a paler green than the last. Stems and leaves 



more or less pubescent, with short spreading hairs, point much 



longer. The leaves are also more narrow. 



3. S. maritima [annual Sea-side Pearl-wort), annual glabrous, 

 stems erect, or procumbent only at the base, leaves fleshy ob- 

 tuse, petals none, cal. rather longer than the caps. Don's 



Fasc. 7. No. 155. E. B. t. 2195. 



Hab. Sea-coast, not unfrequent, as in Angus-shire, Isleof Skye, Aber- 

 deen, QiLeensferry and Eclinb., G. Don. On Ben Nevis ! Id. Isle 

 of May, abundant, D. Don. 



Tliis very distinct species of Sagina, first discovered in Scotland by 

 the acute Mr, G. Don, has been for many years known as a native 

 of the coast of Ireland, where it was detected by my learned 

 friend R. Brown, Esq. In England, too, it is not unfrequent. It is 

 of a reddish brown colour, perfectly glabrous and essentially distin- 

 guished from the two former species by the obtuse leaves, apetalous 

 Jiowers, and lengthened capsule. 



17. MCENCHIA. 



1. M. glauca (glaucous Moenchia). Pers. Hook, in Curt. Fl. 



' Lond. ed. 2. Sagina erecta, Ligktf.p. 125. E. B. t. 609. 



Hab. Pastures of a gravelly soil. Dr. Parsons. Fl. May. 0. 



Stem about 2 — 4 inches high, erect, or at the base a little reclining, 

 smooth, as well as the leaves, which are opposite, linear-lanceolate, 

 acute, rigid, glaucous. Cal. leaves large, acuminate, white and 

 membranous at the margin. Pet. lanceolate, entire, as long as 

 the cal. Caps, as in Cerastium. 



18. RADIOLA. 



1. 'R. millcs,rana {All-seed). Light/, p. M i {Linum Radiola) , 

 E. B. ^ 893. 



Hab. Moist gravelly soils, and where v.'ater has stood in the winter. 

 Icolmkill, Sir Joseph Banks. Langside, Dr. Brown. Road-side 

 between Dumbarton and Helensburgh, plentiful, Hbpk. Banks 

 of the Spev, between Fochabers and Orton, Maugh. Kinross -shire, 

 and Angus-shire, Mr. Arnott. Cluny, Rev. Mr. M' Ritchie. About 

 Loch Ransa in Arran, and common in the N. counties, Perth, Inver- 

 ness, &c., Mr. Murray, f/. July, Aug. ©. 



Very m'mwii; plant, 1 — 2 inches high, repeatedly dichotomous, bushy. 

 Leaves distant, opposite, ovate, entire, smooth. Flowers axillary. 



