168 



SINAPIS— SMILAX. 



leaves sinuate, pinnatifid, radical ones ter- 

 nate, sinuate, many-cleft ; flowers small, 

 panicled. 2-4 f. ib'. 



connn'tum, (y. Au. Z/.) erect, terete, his- 

 pid ; leaves opposite, comiate, .scabrous, 

 remotely serrate ; panicle rerminal, dichoto- 

 mous. 6 f. S. 



pinnatiji'dum, (y. Au.) stem .somewhat 

 glabrous; leaves sinuate, pimiatifid, sub- 

 scabrous, a little haiiy beneath ; flowers 

 large ; scales of the involucrura oval, outer 

 ones roundish. 4 6 f. .S. 



Iceviccn'tmn, fy. Au.) stem simple, 4-an- 

 gied, furrowed, glabrous ; leaves se.ssile, 

 ovate-acuminate, sliirhtly serrate, sub-cor- 

 date at the ba.se, glabrous; scales of tlie 

 involucrum ovate, ciliate. 2 f. 



sca//('r"rim!tm. (y. Au.) stem sub-angled ; 

 angles rough above ; leaves .shortpetioled, 

 ovate, sub-acuminate, serrate, rigid, sca- 

 brous ; flowers corymbed ; scales of the 

 mvolucrum ovate, ciliate. 3-4 f S. 



otropur"pii'rcum, (y. Au. 2^.) terete, 

 smooth ; leaves verticillate by fours, lance- 

 olate, scabrous, sub -entire, sub-ses.sile. cinate 

 at base, upper ones scattered ; panicle di- 

 chotomous. 4 f S. 



denta'lum, (y. Au.) erect, somewhat glab- 

 rous ; lower leaves opposite, upper ones 

 alternate, all lanceolate, sinuate-toothed, 

 pilose, scabrous ; flowers corymbed ; scales 

 of the involucrum broad-ovate, ciliate. 

 2-3 f. ^. 



ela'tum, (y. 2-f.) leaves petioled, alternate, 

 cordate, sinuate ; scales of the involucrum 

 obtuse. S. 



reticnla'tum, (y. 11 f) leaves alternate, 

 ovate-lanceolate, cordate, sen-ate, rather ob- 

 <use, a little villose. S. 



SINATIS. 14—2. (Crucifera.) 



iii'gra, (common mustard, y. J. f^.) silique 

 glabrous, 4-angled, close-pres.sed to the 

 stem ; leaves at the top lauce-iinear, entire, 

 smooth. Naturalized. 



aV'ba, (white mustard,) pod mostly his- 

 pid, spreading ; flowers corymbose. 1-2 f. 

 Introduced. 



arveii'sis, (y. Ju. |^.) stem and leaves 

 hairy ; siliques glabrous, many-angled, un- 

 even, about three times the length of the 

 style ; style slender, ancipital. Introduced. 



SIPHONY'CHIA. .5—1. {Amaranti.) [From 

 siphon, tube, funnel, and nuckios, niglit.] 

 atnerica'na, leaves oblanceolate, shorter 

 than the internodcs. a little hairy below, 

 ciliate. rather obtuse ; stem much branched, 

 minutely and retro.sely pubescent ; flowers 

 hi small, glomerate cymes at the ends of 

 the branches. 

 SI'SON. 5—2. (UmbeUi/erea;.) _ 



mnjus, glabrous ; leaves cut-pimiate ; lobes 

 with cartilaginous margins, sharply serru- 

 late, those of the lower ones lanceolate, of 

 the upper ones many-cleft -and linear. 



rubricau k, leaves semi-verticillate, cut 

 tri-pmnate ; segments capillaceous ; partial 

 Involucres compound, longer than the um- 

 beilets. 



5ISY.\I"BRIUM. 14—2. (Crucifnrce.) [From 

 sisubos. fringe, so called from its fringed 



loots.] I 



officinf'nle, (y. Ju. %.) leaves mncinate 

 hairy ; flowers in a long raceme ; pod sub- 

 ulate. 1-2 f Stem hairy, branched. Road 

 sides. 



canes"cens, (y. Ap.0.) leaves bi-pinnat 

 ifid, hoary ; segments dentate, obtuse, .some- 

 times obovate ; petals as long as the calyx; 

 sihques sub-angled, ascending, shorter than 

 the peduncle ; stigma capitate. 1-2 f. 



cheirantlwi'des, (y. J. -^.) siliques erect , 

 fruit-bearing pedicels spreading ; leaves 

 nearly entire, lanceolate. Canada. 



S1SYR1N"CII1UM. 15—3. (Iride,B.) 



an"ceps, (blue eyed grass, b. J. 2i.) scape 

 or culm .simple, 2 edged or 2-vvinged ; 

 glume-like spatha of 2 unequal valves, ex 

 tending above the flower; petals mucro- 

 nate. Hedge-mustard. 6-12 i. 



mucrotm'tnm, scape simple, winged ; spa- 

 tha colored, one of the valves ending in a 

 long, rigid point; stem setaceous. 6-10 i 

 Flowers 3-4 in a spatha, blue. 



SrU.M. 5—2. (UmheJli/erce.) [From scio, to 



move, from its agitation in the water.] 



latifo'lium, (water-parsnip, w. Ju'. 2^.) 

 root creeping ; stem erect, angular; leaves 

 pinnate ; leafets ovate, lanceolate, sessile, 

 smooth, serrate, sometimes pinnatifid ; um- 

 bels terminal, large, rayed ; involucres 

 many-leaved. ^ 2-4 f. The leaves that grow 

 in water are hi pinnatifid. Swamps. 



Unea're, leafets linear, lanceolate, acutely 

 and finely serrate ; stem tall. 

 SMI'LAX. 20—6. (Asparagi.'', [From smihus^ 



to cut ,•■ so called from the roughness of its 



leaves and stalk.] 



1. Sie7ns frutescent. 



sarsaparU"la, (Ju. If.) stem prickly, 

 slightly 4-angled ; leaves unarmed, ovate- 

 lanceolate, cuspidate,' sub-5-nerved, glau 

 cous beneath ; peduncles long. 



quadran" gnla'ris, (Ju. '^ .) leaves un 

 armed, ovate, sub-cordate, acute, 5-nerved; 

 stem prickly, 4-angled ; berries black. 



cudu'ca, (J. ^.) stem flexuou.s, aculeate; 

 leaves ovate, mucronate, membranaceous, 

 5-nerved ; common peduncle scarcely longer 

 than the petiole. 



pandura'ta, (Ju. ^ .) aculeate; leaves 

 ovate-pandui-iforni, acuminate, 3-nerved ; 

 peduncle twice as long as the petiole. 

 Sandy w^oods. 



laui'ifo'lia, (Ju. '^.) aculeate; branches 

 unanned; leaves coriaceous, perennial, 

 oval-lanceolate, slightly acuminate, 3-nerv- 

 ed ; umbels .short, peduncled. 



pseu'do-chi'na, (J. ^ .) unarmed cauline 

 leaves cordate, ramo.se ones oblong-ovate, 

 5-nerved ; peduncles veiy long. 



rotundifo'lia, (,green-brier, w-g. Ju. 2^.) 

 stem prickly, sub-terete ; leaves unarmed, 

 roundish-ovate, short- acuminate, cordate, 

 5-7 nerved ; berries spherical. 



2. Stems herbaceous. 



pedun'-'cula'ris, (Jacob's ladder, w-g. M. 

 TX-) stem round, climbing ; leaves round- 

 ovate, cordate, acuminate, 9-ner/ed ; umbels 

 loug-pedicelled. 3-5 f. Low ground,s. 



herba'cea, (bohea tea, g. J. 21.) stem erect- 

 simple, slightly angled ; leaves long-peli 



