324 OHDER 47. ROSACE^E. 



lum, with 2 or 4 callosities near the base of the limb ; stigma terminal, 



legume compressed, with few oval, compressed seeds. Twining herbs 



with pinnately trifoliate Ivs. 



D. multifloms Torr. & Gr. Lfts. large, round-ovate, with a short acumination ; 

 rac. about as long as the petioles, dense, many-flowered ; upper segm. of the cal. 

 entire, lower longest, lanceolate; leg. broad, 3 to 5-seeded. River banks, Ga. to 

 La. and Ark. Sts. very Jong, retrorsely pubescent. Lfts. 2 to 4' diam., smooth 

 when old. Pods 2' long, 8" wide, with an abrupt, incurved beak. Sds. brown, 

 much flattened. Jn., Jl. 



/3. HALEI. St. minutely pubescent; Ivs. glabrous; petioles 3 times longer 



than tho fow (5 to 8)-flowered rac. Near N. Orleans (Hale.) 

 D. sesquipedalis "W. a vine with very long pods, native of tho "W. Indies, and 



D. Cat-iang W., with two erect pods at top of the peduncle, native of E. Indies, 



are occasionally seen in cultivation at the South (Feay). 



53. CLITO'RIA, L. Calyx bibracteolatc, tubular, 5-toothed, seg- 

 ments acuminate ; vexillum large, spreading, roundish, cmarginate, not 

 spurred ; keel smaller than the wings, acute, on long claws ; legume 

 linear oblong, torulous, several-seeded. ~4 Mostly twining. Lvs. pin- 

 nately 3 to 5-foliate. Fls. very large, solitary or several together. 



C. Mariana L. Glabrous ; st. suberect or twining, suffruticous ; Ifts. 3, oblong* 

 ovate or lanceolate, obtuse, lateral ones petiolulate ; ped, short, 1 to 3-flowered : 

 bracteoles and brads very short ; leg. torulous, 3 to 4-seeded. Dry soils, N. J. 

 to Fla. St. 1 to 3f long, round, slender, branched. Lfts. rather remote, about 

 1' by 6". Cor. pale purple, 2 to 2' in length, calyx J', bracteoles 2". JL, Aug. 



54. CENTROSE'MA, DC. (Gr. KKvrpov, a spur, <7?>a, a standard; 

 the vexillum spurred.) Sepals lance-linear, slightly united, the lower 

 longest, and with 2 broad bracteoles ; vex. very large, with a short 

 spur on the back near the base ; keel and stamens much shorter, in- 

 curved ; legume long, linear, margined and long pointed. ^ Twining. 

 Lvs. pinnately 3-foliate. Fls. very large. Bracts, bractlets, and calyx 

 striated. 



C. Virginiana Benth. St. Very slender ; Ifts. oblong-ovate to oblong-linear, firm, 

 very veiny, the veins incurved ; ped. 1 to 4-flowered brncteoles larger (not 

 longer) than the cal.; pod. veined along the margin. Dry soils, S. States. 

 Whole plant of firm texture, glabrous and very slender, several feet in length. 

 Banner orbicular, 1|' broad, violet blue. Pod 4 to 6' long, 2 to 3" wide. Jl., Aug. 



ORDEK XLVII. ROSACEJ5. ROSEWORTS. 



. Herbs, shrul/s or trees with alternate, stipulate Ivs. and regular flowers. Sepals 5, 

 rarely fewer, united, often reenforced by as many bractlets. Petals 5, rarely 0, dis- 

 tinct, inserted on the disk which lines the calyx tuba Stamens OO, rarely few. 

 distinct, inserted with the petals (perigynous). Ovaries 1, 2, 5 or DC, distinct, or 

 often coherent with each other, or immersed in an excavated receptacle ( 444). 

 Fruit a drupe, or acheuia, or a dry or juicy ctierio ( 565\ or pome. Seeds I or few 

 in each carpel, anatropous, exalbuminous ; embryo straight (Illustr. in figs. 33, 41, 

 65, G6, 79, 91, 100, 106, 179, 166, 167/159, 293, 307, 385, 289, 380, 381, 414, 439, 

 440, 441, 443, 452, 461. 462.) 



This order, as hero constituted, includes five suborders, and together ST genera and 1000 spe- 

 cies. A law proportion of those are natives of temperate climates north of the equator. 



Propertitx\ hishly important order, whether we resard its delicious fruit, its modfcinal 

 products, or the beauty'of its (lowers. None of its species (excepting Uiose of the almond tribe) 

 are unwholesome. An astringent principle characterizes the family, residing chiefly in the bark 

 and the roots. The roots of the blackberry have been used in medicine as an astringent ; those 

 of the Gilleim, as an emetic; Asrimonia, as a vermifuge. The petals of Rosa dam.iscena ytcW 

 Uie well known fragrant oil called attar of rose. The almond, peach, &c. abouP'i in in-uesic acid, 



