LEGUMINOS^l. CXCIV. LABLAB. CXCV. PACHYRHIZUS. CXCVI. PAROCHETUS. 



361 



to form a right angle. Stamens diadelphous, the tenth one free, 

 and received between the callosities of the vexillum. Stipe of 

 ovary sheathed at the base. Style compressed, bearded beneath. 

 Stigma terminal. Legume flat, acinaciform, muricated from 

 tubercles at the sutures ; the seeds separated by transverse 

 cellular dissepiments. Seeds 4 or fewer from abortion, ovate, 

 a little compressed, with a linear callosity rising from the um- 

 bilicus, as well as being marginate at both extremities.^!' win- 

 ing herbs, with spreading stipulas, pinnately-trifoliate leaves, 

 stipellate entire leaflets, pedunculate racemes of flowers, each 

 peduncle bearing a single leaf. Pedicels somewhat verticillate. 

 Seeds black or brown, with the hylum and callosity white. 



1 L. VULGA'RIS (Savi, 1. c. p. 19. f. 8. a. b, c.) legumes ob- 

 long, ventricose, acinaciform ; pericarp easily separated ? seeds 

 ovate, somewhat compressed ; gland basilar, hemispherical, fur- 

 rowed. 1. < " > . S. Native of the East Indies, and Egypt; 

 and now cultivated in several of the West India islands. D6- 

 lichos Lablab, Lin. spec. 1019. Sims, bot. mag. 896. Lam. diet. 

 2. p. 293. L. niger, Mcench. Riv. tetr. irr. t. 29. f. 4. Alp. 

 aegypt. t. 71. Leaflets roundish-ovate, ending in a point fur- 

 nished with a bristle. Stipulas lanceolate. This plant is culti- 

 vated for the sake of the legumes, which are cooked and eaten. 



J'tir. a, niger (D. C. prod. 2. p. 401.) flowers violaceous; 

 seeds-black. P. Alp. aegypt. 74. t. 75. 



far. ft, purpiireus (D. C. 1. c.) flowers purple ; seeds blackish 

 purple. Lin. spec. 1021. Smith, exot. bot. t. 74. Lindl. bot. 

 reg. 830. Dolichos purpureus, Jacq. fragm. 45. t. 55. Steins 

 purplish. Bracteoles equal in length to the tube of the calyx. 

 Wings spreading. The legumes when fresh and young are sapid 

 and salubrious, and are cooked and eaten in the manner of kid- 

 ney-beans. 



far. y, albijlorus (D. C. 1. e.) flowers white ; seeds of a pale 

 rust colour. Dolichos Bengalensis, Jacq. hort. vind. 2. t. 124. 

 Willd. spec. 3. p. 10.38. Stems pale. Bracteoles shorter than 

 the tube of the calyx. Wings of flower rather adpressed. 

 The legumes are dressed and eaten like those of the last variety. 



Common Lablab. Fl. July, Aug. Cit. 1790. PI. tw. 



2 L. NANKI'NICUS (Savi, 1. c. p. 22. f. 8. d. g.) legumes ob- 

 long, ventricose, acinaciform ; pericarp easily separated ; seeds 

 ovate, turgid ; gland basilar, hemispherical, furrowed, acumi- 

 nated downwards. . r *. G. Native of China, and cultivated 

 in the West Indies for the sake of its legumes, which are dressed 

 and eaten when young in the manner of kidney-beans. Flowers 

 white. Legume 2^ inches long, and 10 lines broad. Seeds 

 milk-coloured. This and the former species are called Tul- 

 Trangi or European-bean by the Egyptians. The inhabitants 

 make pleasant arbours of them. Alpinus says they grow wild 

 in Egypt. Hasselquist is, however, certain that they do not 

 grow wild in Lower Egypt, but are only cultivated there in 

 gardens. 



Nankin Lablab. Fl. July, Aug. Clt. 1714. PI. tw. 



3 L. LEUCOCA'RPOS (Savi, 1. c. f. 9. a. d.) legumes somewhat 

 lanceolate, compressed, torose ; pericarp undulately curled, and 

 separated with difficulty ; seeds nearly globose ; gland basilar, 

 hemispherical, blunt. 0. / ~ v . S. Native of the East Indies. 

 Dolichos Lablab, Gaertn. fruct. 150. Flowers white, very like 

 those of the preceding species. Legume white, 2y inches long, 

 and 8 lines broad. Seeds black or blackish red. 



IVhite-fruited Lablab. Fl. July, Aug. Clt. 1816. PI. tw. 



f- Species not sufficiently known. 



4 L. CULTRA'TUS (D. C. prod. 2. p. 402.) legumes hooked at 

 the apex. 0. ^. G. Native of Japan. Dolichos cultratus, 

 Thunb. in Lin. trans. 2. p. 340. Willd. spec. 3. p. 1029. Do- 

 lichos ensiformis, Thunb. jap. 279. Banks, icon. Kcempf. t. 25. 

 Lateral leaflets 2-lobed. Flowers purple. 



CWfraie-podded Lablab. Fl. July, Aug. Clt. 1816. PI. tw. 



5 L. MICROCA'RPUS (D. C. 1. c.) legumes short, hardly twice 

 the length of the breadth. 0. / "\ S. Native of the Moluccas, 

 on the sea-shore. Dolichos spicatus, Koen. mss. in Roxb. hort. 

 beng. p. 55. Rumph. amb. 5. t. 141. f. 1. Flowers purple, dis- 

 posed in spikes. Seeds black. Perhaps only a variety of L. 

 vulgaris. 



Small-podded Lablab. Fl. July, Aug. Clt. 1818. PI. tw. 



6 L. PERE'NNANS (D. C. 1. c.) leaves pubescent ; seeds nearly 

 spherical. I/ . ^. G. Native of Cochin-china and the Moluc- 

 cas. Dolichos albus, Lour. coch. p. 439 Rumph. amb. 5. 

 t. 137. Flowers as well as seeds white. This is only a variety 

 of L. vulgaris according to Roxburgh. 



Lasting Lablab. Fl. June, July. Clt. 1820. PI. tw. 



Cult. The seeds of all the species may be sown in pots, and 

 placed in a hot-bed ; and in the course of May, when the plants 

 will be several inches high, they may be planted out into the 

 open ground in a warm sheltered situation, in the manner of 

 scarlet-runners, and supported in the same way. 



CXCV. PACHYRHPZUS (from ira K vc, pachys, thick, and 

 pca, rhiza, a root ; in reference to the thick tuberous roots of 

 the plants). Rich. herb. D. C. legum. mem. ix. prod. 2. p. 402. 

 Cacara, Pet. Th. diet. sc. nat. 5. p. 35. 



LIN. SYST. Diadelphia, Decandria. Calyx urceolate, 4-lobed, 

 upper lobe broad, and somewhat emarginate. Petals connected 

 at the base ? Vexillum roundish, spreading, without any callo- 

 sity, biplicate at the base; the plaits involving the stipes of the 

 wings. Stamens diadelphous, with the tube or sheath tumid at 

 the base, and gaping widely. Ovary girded by a little sheath, 

 which rises from the torus. Style beardless, incurved, tumid at 

 the apex. Legume compressed, elongated. Seeds 7-8, reni- 

 form. Twining suffruticose plants, with tuberous eatable roots, 

 pinnately-trifoliate leaves, and axillary racemes of bluish violet 

 flowers. 



1 P. ANGULATUS (Rich. herb. D. C. prod. 2. p. 402.) leaflets 

 angular, toothed, glabrous ; stems suffruticose. Jj . / ~\ S. Native 

 of the Moluccas, and elsewhere in the East Indies, and of the 

 Mauritius, where it is cultivated for the sake of its roots. Doli- 

 chos bulbosus, Lin. spec. 1020. Rumph. amb. 5.t. 132. Pluk. 

 aim. t. 52. f. 4. Root a single turnip-formed tuber, usually 

 ending in a single tail, but sometimes divided ; when young it 

 is eaten both raw and boiled by the inhabitants of India and the 

 Mauritius. 



Angular-leaved Pachyrhizus. Fl. June, July. Clt. 1781. 

 Shrub tw. 



2 P. TRI'LOBUS (D. C. prod. 2. p. 402.) leaflets 3-lobed, pu- 

 bescent ; stems suffruticose, hairy. 1? . ^. G. Native of China 

 and Cochin-china. Dolichos trilobus, Lour, cochin. 439. exclu- 

 sive of the synonymes. Flowers bright purple, with a yellow- 

 spot in the centre of the vexillum. Tubers of root few, about 2 

 feet long, nearly terete, for which the plant is cultivated in China 

 and Cochin-china, where they are boiled and eaten by the inha- 

 bitants. 



Three-lobed-lcafietted. Pachyrhizus. Shrub tw. 



3 P. MONTA'NUS (D. C. 1. c.) leaflets rhomboid-ovate, entire, 

 tomentose ; stems suffruticose. f? . / ~ v . G. Native of Cochin- 

 china. Dolichos montanus, Lour. coch. 440. Flowers purple, 

 disposed in spikes. Anthers 5 oblong, and 5 roundish. Roots 

 with bundles of hard tubers. 



Mountain Pachyrhizus. Shrub tw. 



Cult. A light rich soil will suit these plants, and cuttings will 

 root in sand under a hand-glass, or the plants may be increased 

 by the tubers of the roots, or by seeds. 



CXCVI. PARO'CHETUS (from 7rap, para, nigh, and 

 O\TOC, ochetos, a brook ; in reference to the habitat of the 

 3 A 



