CL. V.] PENTANDRIA MON06YNIA. 121 



Capsule egg-shaped, one-celled, two-valved. Seeds numerous, 

 attached to the margins of each valve. Named from mene, a 

 month, and anthos, a flower. 98. 



1. M. trifolidta. Marsh Trefoil. Bog-bean. Leaves ternate, disk of 



the corolla shaggy. Root large, black, creeping : stems round : leaves 



ternate on round foot-stalks : clusters stalked, opposite the leaves : corolla 

 flesh-coloured, the filaments white. This beautiful plant is possessed of 

 powerful medicinal properties : an infusion of the leaves is extremely 

 bitter, and is prescribed in rheumatisms and dropsies : it may be used as 

 a substitute for hops in making beer, and is employed as a purgative for 

 calves. Perennial : flowers in June and July: grows in marshy places, 

 ditches, pools, and shallow lakes : abundant. Eng. Bot. vol. vii. pi. 495. 

 Eng. Fl. vol. i. p. 275. 315. 



14. VILLA'RSIA. VILLARSIA. 



Calyx inferior, of one leaf, deeply divided into five segments. 

 Corolla of one petal, wheel-shaped, with a limb often fringed with 

 hairs. Capsule one-celled. Seeds numerous, attached to the mar- 

 gins of each valve. Named in honour of M. de Villars, a French 

 botanist. 99. 



1. V. nymph&oides. Fringed Bog-bean, or Water Lily. Leaves heart- 

 shaped, waved at the edges, floating ; corolla fringed. Stems several 

 feet long : flowers axillar : corolla yellow, with a darker disk. Perennial : 

 flowers in July and August : grows in ponds and rivers : rare. In several 

 parts of the Thames ; in the Isis. Eng. Bot. vol. iv. pi. 217. Menyan- 

 thes nympfueoides. Eng. FL vol.i. p. 276. 316. 



15. HOTTO'NIA. FEATHERFOIL. 



Calyx inferior, of one leaf, deeply divided into five linear seg- 

 ments. Corolla of one petal, salver-shaped, with a cylindrical, 

 open tube, the limb divided into five oblong, notched, equal 

 segments. Filaments awl-shaped, short ; anthers oblong. Germen 

 globular, pointed. Style short, cylindrical ; stigma globular. 

 Capsule globular, pointed, one-celled, five-valved. Seeds nume- 

 rous, roundish. Named after a Leyden professor, P. Hotton. 1 00. 



1. H.palustris. IVater Featherfoil. Water Violet. Stalks solitary ; 



many-flowered; partial stalks whorled. Foliage underwater, the 



flowers alone rising above the surface : leaves deeply pinnatifid, with 

 linear segments : flowers in numerous whorls, lilac-coloured, of the shape 

 of those of the primrose. Perennial : flowers in June : grows in ditches 

 and ponds, in England : not common. Eng. Bot, vol. vi. pi. 364. En. 

 Fl. vol. i. p. 277. 317. 



16. LYSIMA'CHIA. LOOSE-STRIFE. 



Calyx inferior, of one leaf, deeply divided into five acute 

 segments. Corolla of one petal, wheel-shaped, without a tube, 

 the limb divided into five egg-shaped segments. Filaments awl- 

 shaped ; anthers oblong, notched at both ends. Germen roundish. 

 Style thread -shaped, as long as the stamens ; stigma obtuse. Cap- 



L 2 



