RICINUS-ROSA. 
gra'cile, (M. T).) spines sub-axillary; 
eaves on slender petioles, pubescent on 
DOth sides; lobes acute, dentate, incised; 
peduncles slender, erect, about 2-flowered ; 
calyx tubular-campanulate ; berries glab- 
rous. 2-3 f. 
oxycanthni'des, (smooth gooseberry, M. 
^ .) larger spines sub-axillary ; smaller ones 
scattered ; leaves glabrous ; lobes dentate ; 
peduncles sborl, about 2-flowered; berries 
purple, glabrous. 3 f. 
cyriOF^"haii, (prickly goosebeny, g. M. 
^).) sub-axillary spines by pairs; leaves 
sliort-lobed, gash-toothed, soft, pubescent; 
racemes nodding, fev^^-flowered ; calyx 
greet, campanulate ; berries aculeate, dark 
brown. 
Iap "pu1a, (b. Ju. leases linear •ob' 
long ; stem branched above ; corolla longer 
than the calyx ; border erect-spreading 
12-18 i. 
RO'SA. 11—12. (Rosacea.) [The Latin name 
rosa, is from the Greek rodon, red.] 
parvijio'ra, (wild-rose, r. w. ^ .) germs 
depressed, globose ; germs and peduncles 
hispid ; petioles pubescent, sub-aculeate 
stem glabrous ; prickles stipular, straight ; 
leafets lance oval, simply serrate, glabrous, 
flowers somewhat in pairs ; very variable. 
1-3 f. 
rnhigino'sa, (sweet-brier, eglantine, r. J 
^ .) germ ovate ; peduncles and petioles 
glandular, hispid ; petioles somewhat prick 
ly ; stem glabrous ; prickles scattered, hook- 
resino'mm, (g. Ap. unarmed, cover- ! ed, slender : leafets (5 or 7) ovate, serrate, 
ed with resinous, glandular hairs; leaves sub-glandular beneath. 3-4 f. 
3- 5 lobed, roundish ; racemes erect ; calyx 
flattish ; petals obtuse-rhomboid ; bracts lin- 
ear, longer than the pedicels ; berries hir- 
sute. S. 
rotundifo'liitm, (^.) spines sub-axillary ; 
leaves roundish, lobes obtuse ; peduncles 
1-flowered ; limb of the calyx tubular; ber- 
ries glabrous. S. 
ni'venm, (snowy-flowered gooseberry,) 
has pendulous white flowers, and dark pur- 
ple fruit. Ex. 
specio' sum, (fuschia-flowered gooseber- 
ry,) flowers .scarlet, stamens very long; 
leaves sub-evergreen. 
puncta'tum, an evergreen species, a na- 
tive of Chili ; flowers bright yellow ; leaves 
shining. 
RICI'NUS. 19—15. (Euphorbia) [From rin, 
nose, and kunos, a dog, because the capsules 
sticlc to tlie noses of dogs.] 
commii'tiis, (castor-oil plant, palma-christi, 
0.) leaves peltate, palmate; lobes lanceo- 
late, serrate ; stem with hoary mealiness. 
4- 6 f. Ex. 
RIVI'NA. 4—1. (Atriflices.) [In honor of 
Rivinus, the great German botanist.] 
Its' vis, leaves ovate, acuminate, glabrous, 
fiat ; stem terete ; racemes simple. 
hu'milis, ( ^ .) racemes simple ; leaves 
tetandvous; leaves pubescent. IS. 
ROBIN'IA. 16—10. {LegummosoB.) 
pseudo-oca cia, (locust-tree, false acacia, 
vv. M. ^.) leaves pinnate, with a terminal 
leafet; stipules thorny, or a thorn; ra- 
cemes pendent; teeth of the calyx un- 
awned ; legumes smooth. 80-40 f. 
vifico'sa, (clammy locust,Ju.24 •) racemes 
9f one-flowered pedicels; pinnate leaves 
with a terminal leaiet ; branches and le 
games viscid ; racemes axillary, dense 
tiowered, 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-() f, S, Cultivated. 
ROCHEL"IA. 5—1. (Boraginea;.) 
virffinin!na, (w. b. J. ©.) pilose, leaves 
oblong-lanceolate, acuminate, large, scab- 
ious above ; racemes divaricate ; fruit 
ilensely covered with hooked bristles. 2 f. 
Rock'' hills 
corymho'sa, (swamp-rose, r-w. Ju. 
I flowers 5-7, in terminal corymbs; petali 
j large, obovate, emarginate; petioles tomen* 
I tose. 
I In'cida, leafets 5-9, lanceolate-elliptio, 
coriaceous, shining ; stipules large, serru- 
j late ; peduncles somewhat hispid ; segment* 
I of the calyx entire, spreading ; flowers 
' mostly in pairs. Mountain swamps. 3-4 f 
' The American species of this genus aro 
I not, generally, weU defined. 
I cani'na, (dog-rose, ^.) germs ovate , 
1 germs and peduncles glabrous ; stem and 
: petioles prickly; leaves ovate, glabrous. Ex. 
I gal'hca, (French-rose, common ro.se, r. J. 
i ^ .) germs ovate ; germs and peduncles 
I hispid; stem and petioles hispid-prickly. 
Sometimes the colors are variegated. Ex 
j damasce'na, (damask-rose, w. r. J. 
j calyx half pinnate ; germ ovate, turgid^ 
I (thickened near its top,) bristly ; stem and 
petioles prickly ; leafets ovate, pointed, 
downy beneath. Ex. 
gemel'la, [v. Svi.^ .) stipular prickles un- 
cinate, in pairs ; leafets 5-7-oblong, acuie, 
opaque, pubescent beneath ; flowers some- 
what in pairs ; fruit depressed-globose, 
with the peduncles glabrous. Dry hills. 
sahifo'lia, (climbing rose, r. Ju. Ip.) tube 
of the calyx sub-globose ; with the pedun- 
cles glandular-hispid ; stem sriiooth ; pi ick- 
les short, solitary, uncinate ; leaves petio- 
led, ternate ; leafets ovate, acute, serrate, 
glabrous above, white, downy beneath; 
segments of the calyx viscid-pilose ; flow 
ers corymbed. 6-8 f. 
micran"tha, (r-w. J. ^ .) tube of the ca- 
lyx ovate, with the peduncles soirewluit 
hispid ; prickles hooked ; leafets ovate, 
acute, with reddish glands beneath. 4 8 f, 
pimpineVlifo'lia, (burnet rose, r. 
leaves obtuse, petioles scabrous; pedun- 
cles glabrous ; stem with straight prickles 
scattered. Very small. Ex. 
parvifo'lia, (small-leaf I'ose, ^.) small 
tube of the calyx ovate, sub-glabrous ; ped- 
uncles glandular ; stem and petioles with 
slender prickles ; leafets rugose ; a little 
villo.se beneath, ovate, glandular, serrate. 
setige'ra, (J. Ip.) fruit globose, with the 
petioles and veins prickly ; branches glab- 
rous; prickles by pairs and scattered ; lea* 
