SIEGESBECKIA— SILPHIUM. 



167 



dioi'ca, (w. Oc. 1/.) leaves palmately 

 7-Iobed, rout^h ; lobes lanceolate, incisely 

 dentate; peduncles many Howered, sub cor- 

 ymbed, bracted ; llowors diceciou.s. 4-5 f . 



cn!i"pa, (w. Au. 0.) leaves oblong-cor- 

 date, acuminate, crenate, upper ones ses- 

 sile ; peduncles solitary, longer than the 

 petiole, when in fruit, deflected ; capsules 

 inflated, awnless, crisp-undulate. 



his"pida, (y. Au. H.) hispid ; leaves lan- 

 ceolate, sen-ate ; peduncles solitary, axillary ; 

 exterior calyx filiform. 1-2 f. S. 



gra'cilis, (y. Au. 11 ■) slender, glabrous; 

 leaves linear, serrate, alternate ; peduncles 

 solitary, axillary; calyx angular. 12-18 i. iS. 



rhonihifo'lin, (y. Au. 2/.) stem sutTruti- 

 cope, bran 'hing ; leaves oblong, lanceolate, 

 dentate, cuneate and entire at base ; ped- 

 uncles much longer than the petioles ; cap- 

 sules 2-horned. 1-2 f. S. 



alctBoi'dcs, (Ju. 11.) lower leaves triangu- 

 lar-cordate, gashed, upper ones palmate, 

 mauycleCt ; calyx hispid. S. 



cocciiif'ea, [2X- r.) stellately pube-scent and 

 hoaiy ; leaves long petioled, deeply 3-part- 

 ed ; lateral segments 2-parted. intermediate 

 one 3 cleft ; racemes terminal ; .styles 12. 

 Plains of the Upper Missouri. 



fUcim'lii^, slender, hispid ; leaves ovate- 

 oblong, cordate at the base, serrate ; flow- 

 ers axillaiy, solitaiy ; capsules 5, 2-beaked. 

 2 f. Texas. 

 SIEGESBECKIA. 17—2. (Corymbiferm.) 



Jk>scido'sa, (y. Au. ^.) leaves dentate, 

 ovate, sessile ; disk florets 3-toothed, trian- 

 drous. 



lacima'ta, leaves laciniate, pinnatifid, up- 

 per ones lanceolate, entire, tuberculate ; ex- 

 terior involucrum short; ray florets very 

 large. iS. 

 S1EVER"SIA. 11—12. (Ro.iacece) fAfter M. 



Sievers, a Russian botanical collector] 



aiiemonoi'dcs, (w.) stem creeping, stolon- 

 I'ferous, 1 - flowered ; leaves pinnate; pir^.se 

 ensiform, toothed at the apex ; stipules fili- 

 form ; capsules shorter than the calyx ; style 

 bearded. 



trijio'rn, (r.) erect, simple, 3-flowered, na- 

 kedish ; leaves radical ; pinn* cuneate, 

 gash toothed, sometimes pinnatifid; petals 

 equalling the calyx ; awns long, silky-vil- 

 lose. Newfoundland. 

 SI'LENE. lli— 3. {Caryophyllca: ) 



penii^yloa'itica, (pink-catchfly, p. M. J. 

 Z^.) viscidly pubescent; radical leaves 

 \vedge form, stem leaves lanceolate ; pani- 

 cles trichotomous ; petals slightly emargi- 

 nate. very obtuse, sub-creuate. 8-12 i. 



vir^itL"ica, (r. J. 2^.) erect, or decumbent ; 

 vii^cidly pubescent; leaves lance-oblong, 

 scabrous on the margin ; panicle dichoto- 

 mous ; petals bifid ; stamens ex.sert. 12 i. 



rof.iind/fa'Iia. (r. Ju.) decumbent; stem, 

 calyx, and margin of the leaves very pilose ; 

 leaves broad-oval ; flowers few, trichoto- 

 mal ; petals gashed, sub- 4 -cleft. S. 



injla'in, caiyx bladder like, and beauti- 

 fully veined , flowers white, petals bifid. 

 Bladder camjiion. llocky hills. Ex. 



armc'rin, (w-r. Au. Qf.) flowers fascicled, 

 fastigiate ; upper leaves cordate, glabrous ; 

 petals onliro. Ex. 



ca'nica, calyx of the fruit conic, striate. 

 Ex. 



dichotf'oma, racemes in pairs, terminal, 

 1-sided; flowers intermediate, pedtincled. 

 Ex. 



noctuv"na, (w. J. 0.) flowers spiked, al- 

 ternate, sessile, secund ; petals bifid. 



Stella' ta, (w. Au. H.) leaves verticillate 

 in fours, oval-lanceolate, long acuminate ; 

 calvx inflated ; petals lacerate, fimbriate. 

 2-4'f. Hill-sides. 



noctijlo'ra, (w-r. Ju. ^.) calyx veiny, 

 10-angled ; teeth of the tube equal ; petaJa 

 2-clefi; stem dichotomous. Ex. 



qninqne!vul"nerii, (r. Ju. 0.) hirsute, 

 leaves cuneate-oblong, upper ones linear : 

 petals entire, roundish; fruit alternate 

 erect. 8-12 i. S. 



ova'ta, (rw. J. li) leaves ovate, lanceo- 

 late, acuminate, nearly smoothish ; raceme 

 terminal, compound ; calyx ovate ; stamens 

 and styles exsert ; stem simple. 



Jimhria'td, (M.) stem pubescent ; leaves 

 obovate, ciliate ; petals large, fimbriate, 

 white ; flowers generaUy 3, in a terminal 

 fascicle. 6-8 i. S. 



antirrhi'na, (Ap. 0.) stem pubescent 

 near the base, .sometimes spotted ; leaves 

 narrow, spatulate, lanceolate, ciliate ; pani- 

 cles dichotomous; petals small, bifid; sta- 

 mens included. 1-2 f S. 



axilln'ris, (p. Au.) viscid-pubescent ; stem 

 branched ; leaves ovate, oval, petioled, sub- 

 dentate ; flowers axillary, sessile, solitary. 

 8 i. .S. 

 S1LPH"IUM. 17—4. (Corymhiferm.) 



perfolia' turn, (ragged-cup, y. Au. 2/.) 

 stem 4-angled,' smooth ; leaves opposite, 

 connate, ovate, serrate. 6 f. Rays 24. 

 Mountains. 



trifolia'tum, leaves verticillate by threes , 

 panicle trichotomous ; stem 4-6 f. high, 

 mostiy purple ; ray florets about 14, long, 

 bright yellow. 



infegrifo'liuvi, (y. Au. 2^.) stem 4-angled, 

 rough ; leaves opposite, erect, sessile, ob> 

 louLT, entire, scabrous; flowers few, short- 

 pedujicled. 4 f. 



tenin'tnm, (y. Ju. li.) stem terete, glab- 

 rous ; leaves verticillate by threes, peti- 

 oled. lanceolate, sub dmiticulate, somewhat 

 scabrous, ciliate at the ba-^e ; upper ones 

 scattered, sessile ; panicle dichotomous ; 

 calyx ciliate. 4-6 f. 



!r)immif'ernm. (y- Ju.) erect, hispid, gum- 

 niferous ; leaves sumatc, pinnatifid, sub his- 

 pid beneath ; flowers large, axillary, sub- 

 sessile; scales of the involucrum ovate, 

 acuminate, outer ones fringed or hi.spid on 

 the margins. 2 3 f. 



terebiii"lhina'ccnm; (y. Ju. li-) erect, gla- 

 brous ; radical leaves lar^xe, round, or reni- 

 form, cordate, slightly lobcd and toothed, 

 cauline leaves alternate, ovate, serrate, sea* 

 brous; panicle compound, many-flowered. 

 4-5 f. 



lacinin'fum, (y. Au. If.) stem smiplc 

 hi.spid above ; leaves pinnatifid. alternate, 

 petioled ; segments tooth sinuate ; flowera 

 panicled ; scales of the involucrum sub-cor- 

 date, acuminate. 8l2f 6'. 



compos" itum, (y. Ju. If) smootli ; cauline 



