156 



RICINUS-ROSA. 



gra'cile, (M. ^.) spines sub-axillary ; 

 eaves on slender petioles, pubescent on 

 Doth sides; lobes acute, dentate, incised; 

 peduncles slender, erect, about 2-flovvered; 

 calyx tubular-campanulate ; berries glab- 

 rous. 2-3 f. 



oxycantkoi'des, (smooth gooseberry, M. 

 ^.) larger spines sub-axillary ; smaller ones 

 tscattered ; leaves glabrous ; lobes dentate ; 

 peduncles short, about 2-flowered ; berries 

 purple, glabrous. 3 f. 1 



cynos"bnti, (prickly goosebeiTy, g. M. ! 

 f).) sub-axillary spines by pairs; leaves' 

 ehort-lobed. gash-toolhed, soft, pubescent ; | 

 racemes nodding, few-flo^vered ; calyx 

 erect, campanulate ; berries aculeate, dark 

 brown. j 



ref.ino'snm, (g. Ap. fp.) unarmed, cover- 1 

 ed with resinous, glandular hairs ; leaves 

 3-5lobed, roundish ; racemes erect ; calyx 

 flatlish ; petals obtuse-rhomboid ; bracts lin- 

 ear, longer than the pedicels ; berries hir- 

 sute. S. 



rotundifo'lium, (^.) spines sub-axillary ; 

 leaves roundish, lobes obtuse ; peduncles 

 1-flowered ; limb of the calyx tubular ; ber- 

 ries glabrous. S. 



id'veiim, (snowy -flowered goosebeiTy,) 

 has pendulous white flowers, and dark pur- 

 ple fruit. Ex. 



specio'snm, (fuschia-flowered gooseber- 

 ry,) flowers scarlet, stamens very long; 

 leaves sub-evergreen. 



punctn'tnm, an evergreen species, a na- 

 tive of Chili ; flowers bright yellow ; leaves 

 shininer. 

 RICI'NUS. 19—15. (Euphorbia.) •[From rin, 



nose, and kunos, a dog, because the capsules 



stick to the noses of dogs.] 



cammn'nis, (castor-oilplant, palma-christi, 

 0.) leaves peltate, palmate ; lobes lanceo- 

 late, serrate ; stem with hoary mealiness. 

 4-6 f. Ex. 

 RIVI'NA. 4—1. (Atriplices.) [In honor of 



Rivinus, tlic great German botanist.] 



Ice'vis, leaves ovate, acuminate, glabrous, 

 flat ; stem terete ; racemes simple. 



hu'milis, { ^ .) racemes simple ; leaves 

 tetandrous; leaves pubescent. A'. 

 EOBIN'IA. 16—10. {Leguminosx.) 



pseudo-o.ca'cia, (locust-tree, ftilse acacia, 

 -w. M. Tp.) leaves pinnate, with a terminal 

 leafet; stipules thorny, or a thorn; ra- 

 cemes pendent; teetli of the calyx un- 

 awned; legumes smooth. 30-40 f.*^ 



visco'sa, (clammy locust, Ju. 24].) racemes 

 of one-flowered pedicels; pinnate leaves 

 with a terminal leafet ; branches and le 

 gumes viscid ; racemes axillary, dense 

 flowered, erect ; flowers varying from red 

 to white. S. Cultivated. 



his'pida, (rose-locust, Au. r. ^ .) racemes 

 axillary ; calyx acuminate ; most of the 

 plant hispid ; leaves pinnate with a termi- 

 nal leafet ; leafets round oval, mucronate, 

 sometimes alternate. 3-6 f. S. Cultivated. 

 ROCHEL'IA. 5—1. (Boragineoi.) 



Virginia' no, (w. b. J. ©.) pilose, leaves 

 oblong-lanceolate, acuminate, large, scab- 

 rous above ; racemes divaricate ; fruit 

 densely covered with hooked bristles. 2 f. 

 Kocky hills. 



lap'pula, (b. Ju. 0.) leaves linear-oU 

 long; stem branched above ; corolla longer 

 than the calyx ; border ej;ect-spreading 



12-18 i. ' ^ 



RO'SA. 11—12. (Ro5acef5.) [The Latin name 



rosa, is from the Greek rodcn, red.] 



parvijlo'ra, (wild-ro.se, r. w. ^ .) germs 

 depressed, globose ; germs and peduncles 

 hispid ; petioles pubescent, sub-aculeate 

 stem glabrous ; prickles etipular, straight ; 

 leafets lance-oval, simply serrate, glabrous , 

 flowers somewhat in pah's ; very variable. 

 1-3 f. 



rubigino'sa, (sweet-brier, eglantine, r. J 

 ^.) germ ovate; peduncles and petioles 

 glandular, hi.spid ; petioles somewhat prick- 

 ly ; stem glabrous ; prickles scattered, hook- 

 ed, slender; leafets (5 or 7) ovate, serrate, 

 sub-glandular beneath. 3-4 f. 



corymbo'sa, (swarop-rose, r-w. Ju. f<.) 

 flowers 5-7, in terminal corymbs; petals 

 large, obovate, emarginate ; petioles tomeu- 

 tose. 



lu'cida, leafets 5-9, lanceolate-elliptic, 

 coriaceous, shining ; stipules large, serru- 

 late ; peduncles somewhat hispid ; segments 

 of the calyx entire, spreading; flowers 

 mostly in pairs. Mountain swamp.s. 3-4 f. 

 The American .species of this genus are 

 not, generally, well defined. 



cani'na, (dog-rose, '^.) germs ovate , 

 germs and peduncles glabrous; stem and 

 petioles prickly; leaves ovate, glabrous. Ex. 



gal'lica, (French-rose, common rose, r. J. 

 ^.) germs ovate; germs and peduncles 

 hispid; stem and petioles hispid-prickly. 

 Sometimes the colors are variegated. Ex 



damasce'na, (damask-rose, w. r. J. f).) 

 calyx half pinnate ; germ ovate, turgid,, 

 (thickened near its top,) bristly ; stem and 

 petioles prickly; leafets ovate, pointed, 

 downy beneath. Ex. 



gemel'la, (r. Ju. 1^.) stipular prickles un- 

 cinate, in pairs ; leafets 5-7-oblong, acute, 

 opaque, pubescent beneath; flowers some- 

 what in pairs ; fruit depressed-globose, 

 with the peduncles glabrous. Dry hills. 



sahifo'lia, (climbing ro.se, r. Ju. ^.)tube 

 of the calyx sub-globose ; with the pedun- 

 cles glandular-hispid ; stem smooth ; prick- 

 les short, solitary, uncinate ; leaves pelio- 

 led, ternate ; leafets ovate, acute, serrate, 

 glabrous above, white, downy beneath; 

 segments of the calj-x viscid-pilose ; flow- 

 ers corymbed. 6-8 f. 



7nxcran"tha, (r-w. J. f).) tube of the ca- 

 lyx ovate, with the peduncles somewhat 

 hispid ; prickles hooked ; leafets ovate, 

 acute, with reddish glands beneath. 4-8 i. 



■pimpinel"Hfo'lia, (burnet rose, r. ^ .) 

 leaves obtuse, petioles scabrous ; pedun- 

 cles glabrous ; stem with straight prickles 

 scattered. Very small. Ex. 



parvifo'lia, (small-leaf ro.se, ^.) small; 

 tube of the calyx ovate, sub-glabrous ; ped- 

 uncles glandular ; stem and petioles with 

 slender prickles ; leafets rugose ; a little 

 villose beneath, ovate, glandular, serrate. 



setige'ra, (J. Tp.) fruit globose, with the 

 petioles and veins prickly ; branches glab 

 reus; prickles by pairs and scattered : leaf- 



