LEGUMINOSJE. 121 GLYCYRRHIZA. 



13. TETRAGONOLO'BUS. 

 Legumes square, with 4 wings; alse of the corolla cohering 

 by their upper edge; filaments dilated upwards- 

 Gr. riTT»^ii, four, ya'vta, an angle, >^ofioi, a bean. 



T. E'duLIS. Lk. Lotus tetragonolobus. L. 



Legumes solitary ; hrarts ovate ; leaves ternate, the intermediate leaflets sub- 

 dentate. A hardy climber, cultivated for the sake of its deep crimson, velvety 

 flowers, and its curious pods. Native of Spain and Sicily, where its fruit was 

 formerly used for food by the poor. This plant is celebrated in botanic histo- 

 ry. Linnasus observed 'that its flowers became invisible in the evening, by 

 being enveloped in their bracts, and reappeared in the morning. He was thus 

 first led to consider the subject of tlie Sleep of plants, and to write upon it. 

 July. Aug. Ann. Wuigtd Pea. 



14. TEPHRO'SIA. 



Teeth of the calyx 5, subulate, nearly equal; keel obtuse, 

 cohering with the wing; legume linear, much compressed, 

 coriaceous; stamens diadelphous. 



Gr. Tf(f>go«, ash-colored; in allusion to the color of the foliage. — Herbs and 

 shrubs, with unequally pinnate leaves. 



T. ViRGINIa'NA. Pcrs. Galega Virginiana. L. 



Erect, villous ; Icaficts numerous, oblong, acuminate ; raceme terminal, sub- 

 sessile ; legume falcate, villous. About a foot high, with very beautiful white 

 and purple flowers, found in dry woods. The whole plant is covered with a 

 whitish down. Leaves pinnate", with 10—12 pairs of pale green leaflets, .sur- 

 mounted by an odd one. Calyx red. Banner white, keel rose-colored, wings 

 red. July. i'er. Cut-gut. GuaVs Rue. 



15. GLYCYRRHI'ZA. 



Calyx tubular, regular, 5-parted; vexillum erect, reflexed 

 at the sides; alffi spreading; carina bitid; legume oblong, 

 smooth, 3 — 4-seeded. 



Gr. yXt/x.t/«, sweet, Qi^a., root; from the well known properties of the 

 liquorice root. 



G. officina'lis. 



Legumes smooth; stipules none; leaflets ovate, retuse, clammy beneath. 

 Thetiquorice plant is deep-rooting, perennial, herbaceous. Native of S. Eu- 

 rope, its stalk rises about 4 feet. Flowers light blue, in axillary spikes. 

 Leaves pinnate, of about II leaflets. This plant is cultivated in plantations 

 for the sake of its roots, and its extract, of the shops. The best soil for its 

 culture, is a deep, sandy loam, which must be spaded or plowed to the depth 

 of 2 feet. It is increased by cuttings of the root, which should be planted in 

 the autumn, in rows, and afterwards hoed and weeded as necessary. After 

 the third summer's growth, the roots are taken up and preserved in sand for 

 sale or use. Liquorice. 



L 



