CJ,. XVII ] DIADELPHIA DECANDRIA. 299 



**** Legumes one- seeded. Calyx of the fruit inflated. 



15. T. fragijerum. Strawberry-headed Trefoil. Heads roundish upon 

 long stalks : calyx at length inflated, membranous, two of its teeth re- 

 flected ; steins creeping. Stems prostrate, creeping, smooth : leaflets 



inversely heart-shaped, serrate : flowers rose-coloured : calyces finally 

 red, the head in this state resembling a strawberry. Perennial : flowers 

 in July and August : grows in meadows and pastures : not common. 

 Eng. Bot. vol. xv. pi. 1050. Eng. Ft. vol. iii. p. 388. 1082. 



16. T. resupindtum. Reversed Trefoil. Heads roundish, on short 

 stalks; calyx at length membranous, inflated, acute, hairy, two of its 



teeth longer and spreading ; corolla reversed. Stems procumbent : 



leaflets inversely egg-shaped. Annual : flowers in July : found in mea- 

 dows near Bristol, and Poole, Dorsetshire, but is not truly wild. Eng. 

 Bot. Suppl. pi. 2789. Brit. Ft. 4th ed. p. 277. 1083. 



**** Legumes one-seeded. Standards finally deflected, 

 dry and membranous. 



17. T. procitmbens. Hop Trefoil. Heads oval, many-flowered ; 

 standard finally deflected, furrowed ; stems spreading or procumbent ; 



common leaf-stalk longer than the middle partial leaf-stalk. Stems 



very numerous, spreading all round, from four inches to a foot long : 

 heads of about fifty bright-yellow flowers. Annual: flowers in June and 

 July : grows in dry pastures : common. Eng. Bot. vol. xiv. pi. 945. 

 Eng. FL vol. iii. p. 309. 1084. 



18. T.jUiforme. Slender Yellow Trefoil. Clusters loose, few-flowered ; 

 common flower-stalks thread-like, waved ; standard even ; stems pros- 

 trate ; common leaf-stalk shorter than the nearly sessile middle leaflet. 



Stems thread-like, from four to ten inches long : flowers yellow, 



three or four only in each cluster. Annual : flowers in June and July: 

 grows in dry pastures : common. Eng. Bot. vol. xviii. pi. 1257. Eng. Fl. 

 vol. iii. p. 311. The T. minus, Lesser Yellow Trefoil, is a large variety 

 of this plant, with heads of many flowers and leaf-stalks longer than the 

 leaves. Eng. Bot. vol. xviii. pi. 1256. Eng. Fl. vol. iii. p. 310. 1085. 



18. LOTUS. BIRD'S-FOOT TREFOIL. 



Calyx inferior, tubular, permanent, with five acute, nearly equal 

 teeth. Corolla of five petals, deciduous ; standard inversely egg- 

 shaped, ascending with a vaulted claw; wings oblong, obtuse, 

 approaching each other, shorter than the standard; keel prominent 

 beneath, closed above, of two united petals, with an ascending 

 point, and short separated claws. Filaments ten, nine united into 

 a compressed tube, split above, the other hair-like, separate, all 

 generally dilated under the anthers ; anthers small, roundish. Ger- 

 men cylindrical. Styles thread-shaped, ascending at a right angle; 

 stigma simple. Legume cylindrical, straight, much longer than 

 (he calyx, two-valved, one-celled, the seeds separated by a spongy 

 substance. Seeds globular. Name, lotos, of the Greeks. 363. 



1. L. corniculdtus. Common Bird's-foot Trefoil. Heads few-flowered, 

 depressed ; stems procumbent ; legumes spreading, nearly cylindrical ; 



claw of the standard broad ; filaments all dilated under the anthers. 



Stems several, spreading all round, from four to ten inches long : flowers 



