324 Order 47.— ROSACEA 



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 lvs. 



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

 rac. about as long as the petioles, dense, many-ilowered ; upper segm. of the caL 

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

 La. and Ark. Sts. very long, 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. IIalii. St. minutely pubescent; lvs. glabrous; petioles 3 times longer 

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

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



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



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



53. CLIT0 V RIA, L. Calyx bibracteolate, tubular, 5-toothed, seg- 

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

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

 linear oblong, torulous, several-seeded. — H 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 ; lfts. 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 G". Cor. pale purple, 2 to 2£' in length, calyx £' , bracteoles 2". JL, Aug. 



54. CENTROSE'MA, DC. (Gr. uivrpov, a spur, cfjiia, 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. — "H Twining. 

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

 striated. 



C. Virginiana Benth. St. very slender; lfts. oblong-ovate to oblong-linear, firm, 

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

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

 Wholo plant of firm texture, glabrous and very Blender, several iect in length- 

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



Order XLVII. ROSACEA. Roseworts. 



Herbs, shrubs or trees with alternate, stipulate lvs. and regular flowers. Sepals 5, 

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

 tinct, inserted on the disk which lines the calyx tube. Stamens <X>, rarely few, 

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

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

 Fruit a drupe, or achenia, or a dry or juicy eteerio (§ 565), or pome. Seeds 1 or few 

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

 65, G6, 79, 91, 100, 106, 179, 166, 167, 159, 293, 307, 3S5, 289, 3S0, 381, 414, 439, 

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



This order, as here constituted, includes five suborders, and together 87 genera and 1000 *pe~ 

 cies. A large proportion of these arc natives of temperate climates north of tho equator. 



Properties. — A highly important order, whether we regard its delicious fruit, its medicinal 

 products, or the beauty of its flowers. None of its species (excepting those of the almond tribe) 

 aro unwholesome. An astringent principle characterizes the family, residing chiefly in the nark 

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

 of the Gillenia, as an emetic; Agrimonia, as a vermifuge. The petals of Rosa damascena y >Q '& 

 the well known fragrant oil called attar of rose. The almond, peach, Ac., abound in prussic acid, 



