244 CALYCIFLOIUE. 



with a subulate spur, at length frequently elastically 

 deflected. Stamens diadelphous. Style filiform, 

 glabrous. Legume subterete or plane or tetragonal, 

 many-seeded, 2-valved, rarely few-seeded and ovate, 

 or 1 -seeded and subglobose : seeds ovate, truncated at 

 both ends, frequently separated by cellulose isthmi. 

 De Cand. 



Herbaceous or suffruticose plants. Stipules distinct from 

 the petiole, small. Peduncles axillary. Flowers racemose, 

 purple, blue, or white. Leaves simple, impari-pinnate, or di- 

 gitate. Hairs generally strigose and appressed. Name, from 

 INDJCUM, a plant, described by Pliny, as brought from India, 

 and FERO, to bear. 



1. Indigofera argentea. Silvery-leaved Indigo. 



Fruticose, branches terete silky-whitish with an 

 appressed pubescence, leaflets 1-2-paired obovate 

 sericeo-pubescent, racemes shorter than the leaf, 

 legumes pendulous subcompressed torulose canescent 

 2-4-seeded. 



I. articulata, Guoan, III. 49 I. glauca, Lamarck, Encycl. 

 III. 236. I. tinctoria, Forsk. descr. 138. 



HAB. Cultivated. 



FL. Throughout the year. 



This species of Indigo was formerly a common weed in the 

 Botanic Garden at Bath. It is cultivated, in Egypt and Bar- 

 bary, for the manufacture of Indigo. The grain of the fecula, 

 procured from it, is said not to be so large as in the other 

 sorts ; but the plant itself is more hardy, and resists better the 

 attacks of insects, and effects of heavy rains. 



2. Indigofera Anil. Wild Indigo. 



Stem suffruticose erect, leaflets 4-5-paired oblong 

 acute at the base rounded and mucronate at the apex 

 appresso-puberulous especially beneath, racemes axil- 

 lary shorter than the leaves, legumes arcuate deflected 

 3-6-seeded. 



HAB. Common every where. 



FL. Throughout the year. 



A shrub, 4-12 feet in height, erect: branches towards their 

 extremities anguloso-sulcated, incano-puberulous with minute 

 appressed reverted hairs. Leaflets petiolulated, 5 -paired with 

 an odd one, obovato-oblong, mucronate, subglabrous and of a 



