LEGUMINOSJE. 245 



pale green above, subincano-puberulous with appressed hairs 

 beneath. Stipules setaceo-subulate. Racemes axillary. Le- 

 gumes |ths of an inch in length, deflected, arcuate, terete, tor- 

 ulose, 3-6-seeded ; the under suture marked with an obscure 

 callous ridge. 



This is one of the most common plants in the Island, abound- 

 ing especially in river courses, and dry gravelly situations. 



3. Indigofera tinctoria. Frank Indigo. 



Stem suffruticose erect, leaflets 4-5-paired elliptic 

 subacute at the base rounded and mucronulated at the 

 apex appresso-puberulous, racemes shorter than the 

 leaves, legumes arcuate deflected 10-seeded. 



Coluteae affinis fruticosa, siliquis falcatis Sloane, Jam. II. t. 

 179. f. 2. Indigofera assurgens, siliquis arcuatis, Browne, 302. 

 I. Sumatrana, Gcertn. Fruct. II. 317. t. 148. I. tinctoria, a, 

 macrocarpa, De Cand. Prod. II. 224. 



HAB. Common in Liguanea. 



FL. Throughout the year. 



A shrub, seldom more than 2 feet in height : branches spread- 

 ing, subflexuose, angulose and appresso-puberulous towards 

 their extremities. Leaflets 4-5-paired with an odd one, petio- 

 lulated, elliptic, acute at the base, rounded and apiculated at 

 the apex, appresso-puberulous especially beneath. Stipules 

 small, subulate. Racemes axillary, not half the length of the 

 leaf. Flowers pedicelled, furnished at the insertion with a 

 small subulate bractea. Calyx 5-dentate ; the two upper teeth 

 more widely apart than the rest. Standard ovali-rounded, api- 

 culated, not emarginate, tinged with vermilion colour internally, 

 minutely ciliated and appresso-puberulous externally : wings 

 shorter than the keel, of a vermilion colour, minutely ciliated : 

 keel concave, greenish, minutely ciliated. Legume upwards of 

 an inch in length, arcuate, terete, appresso-pubescent, with the 

 sutures, when dry, callous and slightly prominent: seeds 10. 



This is a very distinct species from the preceding. It abounds 

 more in the dyeing principle, and is therefore the one gene- 

 rally selected for cultivation. 



The Guatimala indigo plant, I. DISPERMA of some authors, but 

 considered by De Candolle as only a variety of the present 

 species, though formerly cultivated, is not now to be met with 

 in this country. 



4. Indigofera mucronata. Trailing Indigo. 



Suffrutescent angulose as well as the petioles and 

 leaflets appresso-hispidulous, leaflets 2-paired oblongo- 

 ovate mucronate pale beneath, racemes peduncled 



