166 
SERPICULA— SIDA. 
A Florets tuhular ; those of the ray 
wanting. 
hieracifo'ha, (fire-weed, w. J. 0.) stem 
virgate, paniculate ; leaves clasping, oblong, 
acute, unequally, acutely, and deeply tooth- 
ed ; involucre smooth ; seeds pubescent ; 
stem 2-6 f, high, succulent, branching tow- 
ard the summit; flowers in a compound, 
terminal panicle. Road-sides. 
vntga'ris, (groundsel, y. l^.) flowers in 
crowded corymbs. Stem 18 i. Cultivated 
gi'ounds. Introduced. 
B. Flowers with ray florets. 
aure'a, (y. 2X.) radical leaves ovate, cor- 
date, serrate, petiolate ; cauline ones pin- 
natiiid, toothed, the terminal segments lan- 
ceolate ; peduncles thickened ; flowers 
eomewhat umbelled. Shady woods. 2 f. 
obova'ta, (y. J. I^.) stem smoothish; 
radical leaves obovate, crenate-serrate, 
petiolate ; cauline ones pinnatifid, toothed ; 
flowers somewhat umbelled, on long ped- 
uncles ; rays 10-12. 1 f. Rocky hills. 
paupercu'lua, (2J[.) simple, erect, nearly 
naked ; leaves lanceolate, radical ones sub- 
entire and gash-toothed; corymb few flow- 
ered ; involucrum smooth ; rays small. 
gra'cilis, (y. J. 2i.) slender; radical 
leaves very long, petioled, orbicular, sub- 
cordate, crenate ; cauline ones few, very 
remote, linear-oblong, dilated at the base, 
incisely toothed; peduncles very short, 
hairy, sub-umbelled ; involucrum smooth ; 
rays few, very short. 1 f. 
balsami'ta, (y. J. 2X.) stem and peduncles 
villose at the base ; radical leaves oblong, 
serrate, petioled; cauline ones lyrate or 
pinnatifid ; flowers sub-umbelled. Mead- 
ows. 1-2 f. 
cilia'ta, (w.) pilose ; leaves lance-linear, 
ciliate, S. 
tomento'sa, (M. 2J[.) stem simple, hoary 
and woolly ; leaves petioled, oval, lanceo- 
late, serrulate ; corymb sub-umbelled; seed 
pubescent. 2 f. S. 
fastigia'ta, (y.) leaves of the root ob- 
long, cordate-ovate, crenate toothed, glab- 
rous, cauline ones pinnatifid ; segments 
gash-toothed ; flowers sub-umbelled ; ped- 
uncles and involucrum glabrous. 2 3 f. S. 
loba'ta, (butter-weed, y. M. 0.) glab- 
rous ; leaves pinnatifid, lyrate , lobes round, 
sub-repand ; corymb compound ; highest 
peduncles sub-umbelled ; seed oblong, 
striate. 1-3 f. S. 
SERPICULA. 20—9. (Hydrocharides.) [From 
serpo, to creep.] 
cauaden"sis, (little-snake weed, w. Ju. 
11 ■) perfect flowers triandrous ; stigmas re- 
flexed, bifid ; leaves linear, acute, some- 
what whorled, glabrous, denticulate ; pistil- 
late corollas tubular. 
SESa'MUM. 13—2. (Bignonim.) [An Egyp- 
tian name.] 
in"dicum, (oily grain, bene-benni, r-w. 
Au. 0.) leaves lance-ovate ; outer ones 3- 
lobed ; upper ones undivided, serrate. 2-4 f. 
SESBA'NIA. 16—10. (Leguminoscc.) 
vesica' ria, (y. Au.) leaves pinnate; leafets 
oblong, obtuse, glabrous ; racemes shorter 
tbau the leaves. 5-7 £ S. 
macrocaf"pa. (y. and p. S. glabrous , 
leaves pinnate ; leafets elliptic, glabroua, 
entire, sub-glaucous beneath; racemes ax- 
illary, few-flowered ; legumes slender, 
nearly terete, 4-12 f. S. 
SES"EL1. 5—2. (Umbelliferce.) [Origin of 
the name doubtful.j 
triter" iia'tum, (M. y. 11.) leaves triter- 
nate ; leafets long, linear ; umbels hemis- 
pheric; involucrum leafy, linear; leafets 
equal length with the umbels. 
SESLE'RIA. 3—2. (Grnminea.) 
dactyloi'des, (moorgrass, g.) culm leafy, 
setaceous ; leaves short, flat, subulate, sub 
pilose ; spikes 2-3, few-flowered; calyx en- 
tire, acuminate ; stipules bearded. 4-5 i. 8, 
SESU'VIUM. 11—5. (Ficoidea.) ^ 
sessi'le, (r. Ju.) flowers sessile ; leaves 
linear-oblong, flat. Stem succulent. Sea- 
coast. 
pednn" cii' latum, (w. Au.) prostrate, terete ; 
leaves linear-lanceolate, ofctuse, entire, suc- 
culent ; flowers solitary, axillary, short-ped 
uncled, polyandrous, S. 
SEYME'RIA. 13—2. (ScrophularicB.) 
temcifo'lia, (y-p. Au. @.) glabrous, very 
branching ; leaves compound-piunatifid ; 
segments filiform, opposite, and alternate ; 
corolla sub-rotate. 3-4 f. S. 
pectina'ta, leaves pectinate-pinnatifid. 
macro'phyl"la, (y. Ju.) branched ; lower 
leaves sub-pinnatifid or deeply toothed, up- 
per ones lanceolate, entire; corolla vei-y 
woolly ; stamens scarcely exserted. 4-5 f. S. 
SIBBAL"DIA. 5—5. (Rosacea.) [After Sir 
Robert Sibbald, author of Scotia Illustratica.] 
procum 'bens, (y. Ap. 2/.) leaves ternate ; 
leafets wedge form, 3-toothed, smooth above, 
hairy beneath. 
erec"ta, var. parviflo'ra, (r-w. Ju. $ ) 
erect, branching; radical leaves about 
twice 3-cleft; segments sub divided ; leaves 
of the stem sessile, altei'nate, sub-bipinnati- 
fid. 4-6 i. S. 
SIC'YOS. 19—15. (CucurbitacecE.) [From 
the Greek sikuos, a cucumber.] 
angula'ta, (single-seed cucumber, w. @.) 
leaves cordate ; back lobes obtuse, S angled, 
scabrous, denticulate ; tendrils umbellate ; 
sterile flowers corymbose-capitate, with the 
common peduncle long ; fertile flowex's ses- 
sile ; fruit small, ovate, hispid. 
SI'DA. l.*)- 12. (Malvacece.) [Origin of the 
name doubtful.] 
abu'tilon, (Indian mallows, y. Ju. 0.) 
leaves round-cordate, acuminate, toothed, 
tomentose ; peduncles solitary, shorter than 
the petioles ; capsule 2-awned, truncate. 
4-6 {. 
spino'sa, (y. Ju. 0.) leaves ovate-lanceo- 
late, serrate, dentate, with a sub-spinose 
tubercle at the base of the petiole ; stipulea 
setaceous ; pedicels axillary, sub-solitary, 
mostly shorter than the stipules and petiole ; 
carpels 5, bi-rostrate ; seeds triquetrous, 
ovoid. 1 -2 f. 
napa:'a, (w. Ju. 1[.) leaves palmately 5- 
lobed, glabrous ; lobes oblong, acuminate, 
toothed; peduncles many-flowered; cap- 
sules av/nless, acuminate. 2-4 f. Rocky 
Dlace.s. 
