RUELLIA-SAGITTARIA. 135 
nearly entire ; ray-florets very long, deflected, bifid. High grounds. Stem 
3-4 f. Ray parple; disk brown ; involucrum imbricate. 
■ fvblgi'da, (y. Oct. %.) stem hispid, branches long, virgate, and 1-flowered; 
leaves lance-oblong, denticulate, hispid; scale of the involucrum as long 
as the ray ; ray-florets 12-14, 2-cleft at the summit ; stem 2-3 feet high, 
branched. 
finna'la, stem furrowed, hispid ; leaves all pinnate ; flowers very large, yel- 
low ; rays long, reflexed ; disk ovate, purple. 
lacinia'ta, (cone-flower, cone-disk sunflower, y. An. %.) lower leaves pin- 
nate; leafets 3-lobed; upper ones ovate; egret crenate j stem glabrous. 
Damp. 6-10 f. 
RUELLIA. 1.3—2. {Pedicular es.) 
stre^pens, (b. Ju. %.) erect, hairy; leaves on petioles, opposite, lance-ovate, 
entire ; peduncles 3-4-flowered ; segments of the oalyx linear-lanceolate, 
acute, hispid, shorter than the tube of the corolla; flowers axillary; stem 
8-12 i. Shady woods. Penn, to Geo. 
RUMEX. 6 — 3. iPolygonece,.) [From rumex^ a spear, which the leaves of some of the species 
resemble.] 
cris"pus, (dock, Ju. %.) valves of the calyx ovate, entire, all bearing grain- 
like appendages on their backs; leaves lanceolate, undulate, acute. 2-3 f. 
ascetosel"Lus, (field-sorrel, g. p. M. valves without grains; leaves lance- 
hastate; flowers dioecious. 6-12 i. 
aceto^sus, (garden-sorrel, Tj..) stem elongated ; leaves oblong, clasping, sagit- 
tate, acute. Ex. 
patien"tia, (garden-dock, patience, %..) valves entire, one of them bearing a 
grain-like appendage ; leaves lance-ovate. Naturalized. 
RUTA. 10 — 1. iRutacefe.) [From ruo, to preserve, because it was supposed to preserve 
health.] 
grave'olens, (rue,) leaves more than decompound ; leafets oblong, terminal 
ones obovate ; petals entire. Ex. 
SABAL. 6—3. iPalmcB.) 
fu'mila, (Ju. T^.) leaves fan-shape; scape panicled ; flowers sub-sessile, small ; 
berry dark-coloured. 4-6 f. Florida. 
r;^m"^OT«, root creeping; fronds palmate, plicate ; fruit brownish. 8 i. S. 
SABBATIA. 5—1. (Gentianecn.) [In honour of Z,i6ero/MS jS'a66aij, author of a work called 
" Ilortus Romanus."] 
campanula' ta, (p. Au. J^.) stem terete; leaves lanceolate-linear, smooth; ca- 
lyx as long as the corolla. 1 f. Flowers terminal, sub-solitary, on long 
branches. Wet grounds. 
siella'ris, segments of the calyx half as long as the corolla; leaves somewhat 
fleshy, obscurely 3-nerved;"^ flowers solitary, at the extremity of the branch- 
es, forming a small corymb ; rose-coloured. 12-18 i. Salt marshes. 
anguloJris, (American centaury, r. Au. and J^.) stem square, somewhat 
winged ; leaves clasping ; branches opposite. 1-2 f. 
c^^^yco'sa, flowers 7-9-parted ; calyx leafy; leaves sessile. 
corymbo'sa, (w. S.) flowers corymbed, corymbs few-flowered; leaves some- 
what clasping ; corolla 4-6-parted. Swamps. 
SACCHARUM. 3—2. {Graminecn.) [The name is said to be of Arabic origin, derived from 
soukar, sugar.] 
officina'rum, (sugar-cane,) flowers panicled ; in pairs, one sessile and one pe- 
dicelled ; corolla 1-valved, awnless. From the East Indies. 
BAGINA. 4-4. (CaryophyllecB.) 
procum"bens, (pearl-wort, w. Ju. %.) stems procumbent, smooth, branched; 
leaves linear-mucronate ; petals very short. 2-4 i. Borders of streams. 
Peduncles larger than the leaves. 
ape'tala_ (©.) stems somewhat erect, sub-pubescent; flowers alternate; petals 
nearly obsolete, pale green. 
SAGITTARIA. 19—12. iJunccs,.) [From so^^Vto, an arrow ; so called from the shape of the 
leaves in some of the species.] 
sagitiifo'Lia, (arrow-head, w. Ju. ^l-.) leaves lanceolate, acute, sagittate ; lobes 
lanceolate, acute, straight. Var. latifolia, leaves ovate, sub-acute, sagit- 
