26 PENTANDRIA— DIGYNIA. Swertia. 



This i.« presumed to have been the only species of Cuscuta known 

 to Ray, Hudson, and other British botanists, till Mr. A. Smith 

 met with the true europcca in Scotland. 



134. SWERTIA. Felwort. 



Linn.Gen.\2b. Juss, 142. FLBr.2S4. Lam.t. 109. Gcertn.t. 114. 

 Nat. Ord. Botacecje. Linn. 20. Gentiance. Juss. 46. 'N. 135 

 the same. See Grammar 106. 



Cal. inferior, of 1 leaf, flat, permanent, in 5 deep, lanceolate 

 segments. Cor. of 1 petal, wheel-shaped ; limb nearly 

 flat, in 5 deep, lanceolate divisions, larger than the calyx. 

 Nectaries ten, consisting of 2 small depressions, in the 

 base of each division of the corolla, on the upper side, 

 encompassed with short upright bristles. Filam. awl- 

 shaped, rather spreading, shorter than the corolla. Anth, 

 heart-shaped, deflexed. Germen superior, ovate-oblong, 

 cloven at the -summit. Styles very short, distant. Stigmas 

 obtuse. Caps, ovate, acute at each end, of 2 valves and 

 1 cell. Seeds numerous, small, roundish, compressed, 

 bordered, attached, as Gaertner remarks, to the edges of 

 the valves only. 



Herbaceous, smooth, very bitter, nearly allied to Gentiana, 

 but diflering in the peculiar nectaries^ as well as the dis- 

 position of the seeds. Leaves opposite, undivided and 

 • entire. Fl. blueish, numerous. 



tl. ^. per emits. Marsh Felwort, or Swertia. 

 Flowers five-cleft. Radical leaves ovate. ^ 



S. perennis. Linn. Sp. PI.S2S. Willd. v. 1 . 1329. Fl. Br. 284. EngL 



Bot. V. 21, /. 1441 . Jacq. Austr. f. 243. 

 Gentiana n. 536. Hall. Hist. v. 1 . 282. 

 G. palustris latifolia, flore punctato. Bank. Pin. 188. Scheuchx. IL 



Alp. C). 456. Moris, v. 3. 482. secf. 12. ^. 5./. 1 1 . 

 G. punctata Pennei. Clus. Pann. 290. f. 292. 

 G. duodecima, punctato flore. Clus. Hist. v. L316./. 

 G. Pennei minor. Ger. Em. 433./. 

 (t, cserulea punctata Pennoei. Barrel. Ic. t.9l. 

 G. corollarum laciniis nectario Qemino notatis. Le Monnier Obs. 



154. 

 Alisma Tossani Caroli. Bauh. Hist. v. 3. 51 9./. 

 In watery alpine meadows. 



Found in Wales by Dr. Richardson. Huds. Some mistake is to be 

 suspected, as no person lias confirmed this discovery, and so fine 



a plant could .scarcely be overlooked. 



