214 



LEGUMINOSvE. LXXIX. INDIGOFERA. LXXX. OUSTROPIS. 



the leaves ; legumes cylindrical, straight. (j . G. Native of 

 the Cape of Gco:l Hope. Flowers red. Curt. bot. mag. 198. 

 Il'/nte-leaved Indigo. Fl. .May, June. Clt. 1774. Sh. 1 to 2 ft. 



125 I. PSORAI.EOI'DES (Lin. syst. nat. 469.) branches angular, 

 hardly pubescent ; leaves petiolate, trifoliate ; leaflets lanceo- 

 late, clothed with adpressed pubescence beneath ; stipulas linear- 

 subulate, elongated ; racemes pedunculate, much longer than the 

 leaves ; legumes pendulous. \i . G. Native of the Cape of 

 Good Hope. Lam. ill. t. C26. f. 4. Sims, bot. mag. 476. Cy- 

 tisus psoraleoides, Lin. spec. 1043. Burin, cap. prod. p. 22. I. 

 racemosa, Lin. spec. 1062. Pluk. phyt. t. 320. f. 3. ? but the 

 racemes in the figure are shorter than the'leaves. Flowers red. 



Psoralea-iike Indigo. Fl. Ju. Sept. Clt. 1758. Shrub 2 feet. 



126 I. CINE'REA (Willd. spec. 3. p. 1225.) branches rather 

 angular, clothed with greyish silky pubescence ; leaves petiolate, 

 trifoliate ; leaflets oblong-lanceolate, silky ; racemes length of 

 leaves ; legumes spreading, linear, mucronate, silky. t? . S. 

 Native of the East Indies. Flowers small, reel. 



Grey Indigo. Shrub 2 feet. 



127 I. MOLUCCA'NA (D.C. prod. 2. p. 232.) branches slender, 

 terete, pubcrulous ; leaves petiolate, trifoliate ; leaflets oblong- 

 lanceolate, pubescent beneath ; flowers axillary, sessile ; legumes 

 spreadingly deflexed, puberulous, rather tetragonal, 4-6-seeded. 



(7 . ? S. Native of the Moluccas. The middle leaflet is on a 

 short petiole. The flowers are probably red. 

 Molucca Indigo. Shrub. 



128 I. STIPULA'RIS (Link. enum. 2. p. 250.) stem beset with 

 short strigse ; leaves trifoliate ; leaflets oval, with a few adpres- 

 sed hairs ; stipulas oval, acute ; racemes longer than the leaves. 

 J; . G. Native of the Cape of Good Hope. Perhaps belonging 



to a different section. Flowers red. 



Stipular Indigo. Fl. May, July. Clt. 1824. Sh. 1 to 2 feet. 



129 I. INCA'NA (Thunb. prod. 132. fl. cap. 596.) stems decum- 

 bent, very much branched, suff'rutescent at the base ; branches 

 clothed with silky pubescence ; leaves petiolate, trifoliate ; leaf- 

 lets ovate, acute, silky ; legume reflexed, silky. Pj . G. Native 

 of the Cape of Good Hope. Flowers red. 



Hoary Indigo. Fl. May, July. Clt. 1812. Shrub decumbent. 



180 I. ARCUA'TA (Willd. spec. 3. p. 1228.) branches angular, 

 clothed with hoary pubescence ; leaves petiolate, trifoliate ; leaf- 

 lets elliptic, obtuse, mucronate, canescent beneath ; racemes 

 about equal in length to the petioles ; legume arched, reflexed, 

 tetragonal, canescent. ' S. Native of the East Indies. 

 Flowers red. 



Arched-podded Indigo. PL 



131 I. TRI'TA (Lin. til. suppl. 335.) stem erect ; branched at 

 the base ; leaves petiolate, trifoliate ; leaflets ovate-lanceolate, 

 acute; racemes shorter than the leaves. Q. ? $ . ? S, Native 

 of the East Indies. Flowers red. 



Worn Indigo. Fl. June, July. Clt. 1802. PI. 1 foot. 



132 I. HEDYSAROI'DES (Lam. diet. 3. p. 250.) stem erect, 

 branched at the base ; leaves petiolate, trifoliate ; leaflets ovate, 

 obtuse ; legume arched. fj . G. Native of the East Indies, ex 

 Rheed. mal. 9. t. 36. and perhaps of China if I. coccinea, Lour, 

 coch. p. 457. be the same. Flowers deep red. 



Hedysarum-like Indigo. Fl. June, Aug. Clt. 1822. PI. 1 ft. 



133 I. ER^'CTA (Thunb. prod. 133. fl. cap. 597.) stem her- 

 baceous, nearly erect ; leaves petiolate, trifoliate ; leaflets ob- 

 ovate, acute, glabrous above, and clothed with fine pubescence 

 beneath ; legume cylindrical, acute, reflexed, pubescent. Na- 

 tive of the Cape of Good Hope. Flowers red. 



Erect Indigo. PI. 1 foot. 



134 I. PROCU'MBENS (Lin. mant. 271.) stems flexnous, decum- 

 bent, compressed, smoothish ; leaves petiolate, trifoliate ; leaf- 

 lets obovate, smooth above, but clothed with adpressed pubes- 

 cence beneath ; racemes much longer than the leaves. If. . G. 



Native of the Cape of Good Hope. Thunb. fl. cap. 597. 

 Flowers blood-coloured, large for the size of the plant. 



Procumbent Indigo. Fl. May, July. Clt. 1818. PI. pro- 

 cumbent. 



135 I. I-ROSTRA'TA (Willd. spec. 3. p. 1226.) stems filiform, 

 prostrate, rather angular, and rather pubescent ; leaves petiolate, 

 trifoliate ; leaflets obovate, whitish beneath ; racemes shorter than 

 the leaves ; legumes pendulous, filiform. Native of the East 

 Indies. Plant tufted. Flowers red. 



Prostrate Indigo. PI. prostrate. 



f Species not sufficiently known, 



136 I. ROTUNDIFOLIA (Lour. coch. p. 458.) stem twining, her- 

 baceous, pilose ; leaves trifoliate ; leaflets roundish, tomentose on 

 both surfaces ; racemes axillary, short ; legumes oblong, flat, 

 acuminated, glabrous, 2-seeded. 0. ^\ G. Native of China, 

 near Canton. Flowers yellow. 



Round-leaflelled Indigo. PI. twining. 



137 I. BUFALI'NA (Lour. coch. p. 458.) stems suffruticose, 

 climbing, glabrous ; leaves trifoliate ; leaflets ovate, glabrous ; 

 racemes axillary and terminal, on long peduncles ; legumes 

 straight, rather compressed, villous. fj . w . G. Native of 

 Cochin-china, among bushes. Flowers between white and purple. 



Ox Indigo. Shrub cl. 



1 38 I. STRIGOSA (Spreng. neue entd. 3. p. 54.) shrubby ; stems 

 filiform; leaves abruptly-pinnate? leaflets 5-7, linear, acute, 

 strigose ; stipulas cuspidate ; racemes terminal ? flaccid. Jj . G. 

 Native of the Cape of Good Hope. Allied to I.Jiliformis. 



Strigose Indigo. Shrub 1 foot. 



139 I. OXYCA'RPA (Desv. journ. bot. 1814. vol. 1. p. 79.) 

 stem angular, pentagonal, pilose ; leaflets oblong-ovate, mucro- 

 nate, pilose ; spikes of flowers on long peduncles ; legumes 

 terete, a little incurved, acute. (7 . ? S. Native of the Antilles. 

 Perhaps the leaves are pinnate or digitate. 



Sharp-fruited Indigo. Shrub. 



140 I. DIFFUSA (Desv. 1. c.) branches diffuse; leaflets ob- 

 ovate, somewhat cmarginate, pilose ; spikes of flowers very 

 short ; legumes divaricate, rather pilose, fj . ? S. Native of the 

 African islands. 



Diffuse Indigo. Shrub. 



Cult. The whole of the species of this genus are rather ele- 

 gant delicate plants, and all the green-house shrubby kinds are 

 worthy of general cultivation ; these grow best in a mixture of 

 sandy loam and peat, and they are easily propagated by young 

 cuttings planted in sand with a bell-glass placed over them. The 

 stove kinds require to be grown in the same kind of soil as the 

 green-house kinds, and to be propagated in the same manner. 

 The seeds of the annual species require to be sown in a hot-bed 

 in spring, and when the plants have grown a sufficient height 

 they may be planted singly in separate pots, and placed again 

 in the hot-bed, and some may be planted out in the open ground 

 in a sheltered situation. 



LXXX. OU'STROPIS (from OVQ, ous, an ear, and rpoiric, 

 tropis, a keel : in reference to the keel of the flower being fur- 

 nished with an auricle on each side). 



LIN. SYST. Diadelphia, Decdndria. Calyx hairy, tubular, 5- 

 cleft ; the segments subulate and acute, upper ones shortest. 

 Vexillum broad, not emarginate, about equal in length to the 

 wings, but longer than the keel. Keel furnished with an auricle 

 on each side. Stamens diadelphous. Ovary pubescent, linear. 

 Style glabrous. Stigma capitate and glandular. Legume short, 

 cylindrical, and rather compressed, ending in the straight acute 

 style, 3-seeded, the seeds lodged in as many cells. A graceful 

 small plant, with decumbent slender stems, which are slightly 

 hairy ; and small, trifoliate, rather hairy leaves, small subulate 



