1670 



SILPHIUM 



BB. SUin-lr.s. I'lr'ie. 



c. -Lr.s. i-amutlf-perfollafe, 



perfoliatum, Linn. C'fp Plant. Stem square, usually 

 dentate, branched above, about ft. high: Ivs. thin, 

 ovate or deltoid-ovate, the lower contracted into mar- 

 gined petioles, the upper opposite, connate-perfoliate: 

 fl. -heads 2-:t in. across, with 20-30 rays. -July, Aug. 

 Western prairies. B.B. ;'.:40ti. 



2329. Silcnc VlrBinica ( X K) . (.See page 1069.) 



CO. Lrs.pel/ohd or simpJij sessile. 

 integrifdlium, Michx. 8tera 2-G ft., obtusely 4-angled 

 to terete : l\'s. lanceolate-ovate to ovate-lanceolate, oppo- 

 site: tl. -heads 1-2 in. across, with 15-25 rays. Aug., Sept. 

 Western prairies. B.U. ;!:407. F. W. Barol vv 



SILVER BELL TREE, ITah.^ia. S. Bush, AiitlniUis 

 Barha-Juvis. S. Tree, L,ii,;i,lr„,hvi, : aUo Eheai/,ins. 

 S. Weed, Potentilia uiis,rii,,i . 



SILYBTTM Marianum, Gaertn.. Blessed or Holy 

 Thistli:', is Sfpnii-times grown in old European gardens 

 for ornament, and also for the edible heads, roots and 

 leaves. It is a large tld. thistle 2-4 ft., perennial. S. 

 Europe. Known also as Curduus Marianas, Linn. 



SIMM6NDSIA (named for the naturalist, F. W. Sim- 

 7iiou(ls|. /■Jii/'liorbiacea'. A monotypic genus differing 

 from Irluxus in the numerous stamens and one-seeded 

 carpels: dio'cions: rudiment of pistil absent from the 

 starainate lis, 



Cali{6mica, Nutt. A much-branched shrub with sm;dl , 

 sessile, entire, coriaceous, oblong-lanceolate Ivs. : stami- 

 nate fls. clustered and the much larger pistillate Hs. 

 single in the axils. Dry s;mcl hills of southwestern U. S. 

 -Sometimes cult, for the oil of the seeds, used as a hair 

 tonic. Cult, in S. Calif. j, q g^ Norton. 



SIHPLEE'S JOY. See I'erhenn. 



SINAPIS. Included under Britssica. 



SISYKINCHIUM 



SINNtNGIA (after Wilhehn Sinning, gardener at the 

 University of Bonn). Including Mosanowia. Gesiier- 

 dee(r;, A uenus of about IG species of Brazilian tuberous 

 herbs. The generic characters of Sinningia are : pubes- 

 cent or villous herbs from a tuberous rhizome: Ivs. op- 

 posite, usually large, petioled, the floral ones reduced 

 to liracts: fls. usually large, solitary or fascicled, in the 

 axils, pediceled; calyx-tube shortly and broadly turbi- 

 nate, adnate, 5-angled or 5-winged, the limb foliaceous, 

 broadly 5-cleft or parted; corolla-tube nearly equal at 

 the base or the posterior gibbous, long or broadly cylin- 

 drical, the upper part s\\'<dlen or tiell-shaped ; lobes 5, 

 spreading, or the 2 posterior snj;dler; stamens included, 

 attached to the tube of the corolla; anthers broad, the 

 cells confluent at the apex: glands of the disk 5, dis- 

 tinct, or the 2 posterior more crowiled together or con- 

 nate: ovary half inferior; style ilihited at the tip: 

 stigma con':a\"e. entire or slightly 2-lobed. The genus 

 includes tile florists' (-iloxinia, which i.s properly ,S'i;i- 

 luiHjK! s/xrinsa, Hiern., but which is treated in this 

 book uniler Gli'xi)ii<(. Cther than this species, the Sin- 

 niitgias are little known horticultnrally. Culture as for 

 Gloxinia. 



conspicua, Benth. & Hook. (liosunnwia cviispieua, 

 Kegel). Root tuberous: stem 1 ft. high: Ivs. ovate- 

 oblong, short-acuminate, somewhat heart-shaped at the 

 base and dentate: fls. yellow, paler on the outside, 

 marked on the lower part of the tube with purple dots 

 and lines: calyx-tube entirely united with the ovary, 

 equally 5-parted, the segments lanceolate, spreading; 

 corolla-tube obliquely and narrowly campanulate, swol- 

 len and recurved at the base; glands of the disk 2: cap- 

 sule 1-celled: seeds many. 



ornMa, Benth. & Hook. {Rosanowia ornata, Van 

 Houtte). A hybrid of the above species with a garden 

 variety of Gloxinia with flowers of a bright red; the re- 

 sult is a plant resembling S. cotispieua, but differing in 

 having the leaves tinted on the veins and petioles with 

 purple aiul in having a somewhat more elegantly shaped 

 flower, pure white with ])ur]de lines on the outside of 

 the corolla-tube ami the inside of a yellowish green, 

 lined with purple. F.S. 23:2423. 



Rosanmoia Udnstetni, Hort. Jolni Saul, is apparently ]iot 

 known to botanists. F. W. Bakclav. 



SIPHOCAMPYLUS (siphon, tube, and kampi/los, 

 curved; referring to corolla). Lnhelidceo'. About 

 100 tropical American herbs and shrubs, with long, 

 showy tubular fls., red, orange or purplish in color and 

 borne singly on long peduncles : bracts absent or rarely 

 2 very small ones. About 10 kinds are cultivated in 

 European warmliouses, and propagated l»y cuttings. 

 Allied genera are discriminated under Isotouia. 



betulaeiiilius, G. Don. Height 2-3 ft.: stem woody at 

 base: branches rouinled : Ivs. alternate, petiolate, 3-4 in. 

 long, cordiLte, acuminate, doal>ly serrate, nearly gla- 

 brous: peduncles 1-fld., as long as the Ivs., thickened 

 upwards: calyx-segments long awl-shaped, with a few 

 notches; corolla 2^2-3 in. long, tube vermilion, limb 

 yellow. Brazil. B.M. 3,n73. —Tender perennial, not 

 cttlt. in America, but intei-esting as one supposed par- 

 ent of Centfopoi/"ti L}teijnnns ; itself of little value. 



W. IM. 



SIPHONANTHUS. See Cleroilendron SIplionanlhus. 



SISSOO TREE. Duihergia Sissoo. 



SISYElNCHIUM (an old Greek name first applied to 

 sonu' rither plant). Iriddceo'. Satin Flower. Blue- 

 EVED Grass. Kush Lilv. About 60 species of American 

 perennials, usually with flbrous roots, grass-like, nar- 

 row or terete Ivs. and simple or branched stems often 

 flattened and winged, bearing clusters of usually blue 

 or yellow fls. sulitended by two spathes: perianth 

 nearly flat or bell-shaped; segments 0, nearly equal, 

 obovate or oblong; stamens inserted on the base of the 

 perianth; fllainetits nu>re or less connate: ovary sub- 

 globose to turliinate, 3-loculed, 3-valved. The species 

 are of easy cnlt\ire in any good garden soil. Useful in 

 the wild border, where hardy. 



