LEGUMINOSjE. CLV. DESMODIUM. 



289 



and Dionce'a ; nor is it so evanescent as in Amorpha. No sooner 

 had the plants raised from seed acquired their ternate leaves than 

 they began to be in motion in every direction ; this movement 

 did not cease during the whole course of their vegetation, nor 

 were they observant of any time, order, or direction ; one leaflet 

 frequently revolved, whilst the other on the same petiole was 

 quiescent ; sometimes a few leaflets only were in motion, then 

 almost all of them would be in movement at once ; the whole 

 plant was very seldom agitated, and that only during the first 

 year. It continued to move in the stove during the second year 

 of its growth, and was not at rest even in winter." In our cli- 

 mate the lateral leaflets move up and down, either steadily or by 

 jerks, particularly if the house in which it is growing be shut up 

 very warm. This motion is most evident when the sun's rays 

 are on the plant, it therefore appears to us that it is the action 

 of the sun's rays upon it which occasions the motion of the 

 leaflets. For further particulars see Brouss. mem. acad. scienc. 

 paris, 1784. p. 616. Silvestr. bull, philom. 1. p. 67. t. 5. (f. 44.) 



Far. ft ; lateral leaflets almost wanting. $ . S. Native of 

 Nipaul. Wallich. Hedys. gyrans, Roxb. hort. beng. p. 57. 



Moving Plant or Whirling Desmodium. Fl. July, Aug. Clt. 

 1775. PI. 1 to 3 feet. 



9 D. GYROI'DES (D. C. legum. vi. prod. 2. p. 326.) leaflets 3, 

 elliptic, the terminal one large, and the lateral ones small ; racemes 

 numerous, disposed in a panicle ; legumes hairy. Tj . S. Na- 

 tive of the East Indies, in Silhet. Hedysarum gyroides, Roxb. 

 hort. beng. 57. The legume is very like that of D. triquetrum, 

 but hairy. The plant is hoary in -every part. 



Gyrans-like Desmodium. Clt. 1817. PI. 3 to 5 feet. 



10 D. TIMORIE'NSE (D. C. leg. mem. vi. prod. 2. p. 327.) 

 leaflets 3, rhomboid, canescent from villi beneath, and with a 

 few scattered hairs above ; lateral ones one-half smaller than the 

 terminal one ; racemes numerous, disposed in a panicle ; legumes 

 short, pubescent. $ . S. Native of the island of Timor. 



Tin/or Desmodium. PI. 2 to 4 feet. 



SECT. III. CHALA^RIUM (probably from y^a\aa>, chalao, to loose ; 

 from containing a loose heterogeneous mass of plants). D. C. 

 prod. 2. p. 327. Joints of legume membranous, indehiscent, 

 oval or orbicular, rarely oblong, convex on both sides, or with 

 the superior side straightish, tapering to both ends. Leaves 

 simple or pinnately-trifoliate. Racemes loose, elongated, with 

 3 pedicels rising from each bractea. 



1. Leaves simple, that is, only having one leaflet. 



11 D. GANGE'TICUM (D. C. prod. 2. p. 327.) stem erect; 

 leaflets ovate, acute, clothed with adpressed silky pubescence 

 beneath ; stipulas 4 times shorter than the petiole ; legumes pu- 

 bertilous, having 5-6 semi-orbicular joints, fj . S. Native of 

 the East Indies. Burm. zeyl. t. 49. Hedys. Gangeticum, Lin. 

 spec. 1052. .^Eschynomene Gangetica, Poir. Hedys. ochroleu- 

 cum, Mcench. Flowers dirty purple ? 



Far. /3, Neuia (D. C. prod. 2. p. 327.) leaflets ovate-lanceo- 

 late, acuminated, silky beneath ; stipulas exceeding half the 

 length of the petioles. T? . S. Native of the Philippine islands. 

 Perhaps a distinct species. 



Ganges Desmodium. Fl. July, Aug. Clt. 1762. PI. 2 to 3 ft. 



1 2 D. MACULA'TUM (D. C. prod. 2. p. 327.) stem erect, her- 

 baceous ; leaves ovate, obtuse or rather acute, spotted with white 

 above, and clothed with adpressed pubescence beneath ; legumes 

 rather puberulous, having 5-6 semi-orbicular joints. () S. 

 Native of the East Indies. Hedys. maculatum, Lin. spec. 1051. 

 TEschynomene maculata, Poir. Dill. hort. elth. 1. t. 141. f. 168. 

 Flowers pale violet, or red and yellow. (Mill.) 



Doited-leaved Desmodium. Fl. July, Aug. Clt. 1732. 

 PI. 1 foot. 



13 D. RENIIORME (D.C. prod. 2. p. 327.) stem erect; leaves 



VOL. II. 



roundish-reniform, very blunt ; joints of legume semi-orbicular. 

 O- S. Native of the East Indies. Hedys. reniforme, Lin. 

 spec. 1051. Burm. ind. t. 52. f. 1. Lower flowers solitary in 

 the axils of the leaves. Flowers purple. Habit of Eleiotis 

 monop/iijlla, but the legume is very distinct. 



Rc/iiform-]ea\ed Desmodium. Fl. Jul. Aug. Clt. 1820. PI. 1 ft. 



14 D. RU'BRUM (D. C. prod. 2. p. 327.) stem suffrutescent ; 

 branches nearly erect ; leaves ovate, ciliated ; racemes terminal, 

 spicate ; legumes arched, scabrous. Jj . G. Native of Cochin- 

 china. Ornithopus ruber, Lour. coch. p. 452. Branches red. 

 Flowers pale. 



TJerf-branched Desmodium. Shrub 2 feet. 



15 D. TERMINABLE (D. C. prod. 2. p. 327.) stem tall, shrubby 

 at the base ; leaves large, rather tomentose ; panicle loose ; outer 

 joint of legume sterile and dilated. Tj . S. Native of Guiana. Hedys. 

 terminale, Rich. act. soc. hist. nat. par. p. 105. Flowers purple. 



Terminal Desmodium. Shrub 2 feet. 



16 D. PERROTTE'TII (D. C. legum. mem. vi. prod. 2. p. 327.) 

 stem terete, erect, scabrous from short curved hairs ; leaves 

 ovate, rather acute, puberulous beneath, but- villous when young, 

 nearly glabrous above ; panicle terminal ; joints of legume ovate, 

 equal, velvety. Tj . S. Native of Guiana. The leaves appear 

 to be spotted with white in the dried specimens. 



Perrottet's Desmodium. Shrub 1 to 2 feet. 



17 D. ORMOCARPO:DES(D. C. prod. 2. p. 327.) stem suffrutes- 

 cent, erect, glabrous ; leaves ovate, acuminated, glabrous ; 

 racemes nodding ; legumes hairy from short down, with elliptic, 

 elongated, compressed joints. fy . S. Native of Java. Hedys. 

 ormocarpoides, Desv. in herb. Desf. Hedys. adluc'rens, Poir. 

 suppl. 5. p. 15. but not of Vahl. Perhaps this plant is rcferrible 

 to the first section. 



Ormocarpmn-like Desmodium. Shrub 2 to 3 feet. 



18 D. SAGITTA'IUM (D. C. prod. 2. p. 327.) leaves oblong or 

 linear-lanceolate, cordately-sagittate, on very short petioles ; 

 flowers solitary, axillary, on long pedicels. Native of the East 

 Indies. Hedys. sagittatum, Poir. diet. 6. p. 403. The legume 

 is unknown. Flowers red. Stem triquetrous, glabrous. 



Sagittate-leaved Desmodium. Fl. July, Aug. Clt. 1807. 

 PI. 1 to 2 feet. 



19 D. LINEARIFOLIUM (D.C. legum. mem. vi. prod. 2. p. 327.) 

 stem herbaceous, terete, glabrous at the base ; leaves linear, 

 mucronate, glabrous, on short petioles ; racemes terminal, pu- 

 berulous ; legumes puberulous, with 4-6 compressed, roundish- 

 elliptic joints. Native country unknown. 



Linear-leaved Desmodium. PI. 1 to 2 feet. 



20 D. DENUDA*TUM (D. C. legum. mem. vi. prod. 2. p. 328.) 

 stems terete, suffruticose, glabrous ; branches twiggy, puberu- 

 lous, bearing leaves only at the base ; leaves oblong-lanceolate, 

 acutish ; stipulas and stipels setaceous ; racemes elongated, 

 naked ; pedicels usually twin. J? . S. Native of St. Domingo, 

 in dry pastures. Flowers purple. 



Naked-branched Desmodium. Shrub 1 to 2 feet. 



21 D. ANGUSTIFOLIUM (D. C. prod. 2. p. 328.) shrubby; 

 branches twiggy ; leaves linear-lanceolate, mucronate, puberu- 

 lous beneath, and with the margins scabrous ; racemes solitary ; 

 bracteas ciliated, with stiff hairs ; joints of legume 1-6, roundish, 

 hairy, with rather hispid margins. Ij . S. Native of Mexico. 

 Hedysarum angustifolium, H. B. et Kunth, nov. gen. amer. 6. 

 p. 517. Flowers minute, purple. 



Narron-leofletted Desmodium. Fl. June, Aug. Clt. 1824. 

 Shrub 2 feet. 



22 D. VELUTINUM (D. C. prod. 2. p. 328.) stem shrubby, 

 terete, pubescent ; leaves ovate, clothed with velvety tomenturn 

 on both surfaces, mucronate ; racemes terminal and axillary ; 

 calyx 5-parted, villous ; legumes clothed with villous tomentum, 

 having oblong compressed joints. T? S. Native of South Ame- 



Pp 



