HEITIIKKA 



lili-iisrrs 



741 



r. H.B. 2: 179. -"Rvori^rcen .foliage marble.1 

 \vUh broTizy red."— WdoLsoh. 



DD. Calyx, prominent} ij <'bJiqi<e. 

 hispida, Pursh. FTei^'bt 2—1 ft. Woo<ls, \'n. 

 to Idaho. B.B. 2:lbO. 



oc. Inflorescence a spike. '^".-- 



cylindrica, Doupl. Height ]0-24- 

 ill. Yellows ti mi.' Park westward. 

 B.R. 23:11124. 



BB. Seapr.-i not hnirij. 

 r. Inflonsrence a loose panicle 

 parvif61ia, Nutt. Height M-2 ft. 

 Hex. to Muiit. 



00. Inflorescence drtiser, sptcafe. 

 bracte^ta, Ser. Height 3-G iu. Cob:>. 

 AA. Sta>ne)is and sfiife.s nnirh exserteil, 

 at least at tir.^l. 

 B. Len<jlli of cahjx .'>-') lines. 

 rub^scens, Torr. Heiglit 8-15 in.: 

 scape usually lealiess, glal)rous or some- 

 what scabrous ; margin of Ivs. ciliate. 

 New Mex. to Nov. 



BB. Length of calyx l%-3 lines. 

 Americana, Linn. Alum Root. Height 

 2-;{ ft.: scape leatiess orwitli afew small 

 Ivs., more or less glandulur-birsute. Dry 

 or rocky woods, Ont. to La. and Minn. 

 B.B. 2":17;). K.H. 1898, p. 4:.!l.-"Has 

 mottled foliage."— 6= (7/f/^ 



EBB. Lengili of calyx l-l}-i lines. 

 C. Scape vilUnis, i. e., densely coverrd 

 with tony, soft Jtairs. 

 villosa, Michx. Height 

 1-3 ft.; scape mostly 

 leafless. Rocky places, 

 Va. to Ga. and Tenn. 

 B.B. 2:179. 



CO. tSeape thinly covered with ■yniniite 

 (jlandalar hairs. 

 micrintha, I>ougl. Height 1-2 ft. Calif. 

 B.R. 15:1302. R.H. 1898, p. 431. 



The following names are seen in trade cat 

 alo^es but not in Imlex Kewensis. H. pur 

 purdseens was advei'tised isuy, liy H. Corre 

 von, Geneva, Switzerland. Plants in Ameri 

 can trade are not yet large enough for identi 

 lication.— if". ir/i('(}ffr^ was found in the Soutl 

 .some years ago, and Thomas Meehau, wIk 

 has not examined it closely, says it looks lik< 

 a form of H. Canadensis with variegated ' 



W. M. 

 HfiVEA (from the Brazilian name 

 fiJuphorbificeee. This includes the tree 

 that produces the Para rubber of com- 

 merce. Tlie genus contains 11 species 

 of tail trees from Brazil and Guiana, 

 furnishing the milky juice called caout- 

 chouc: Ivs. alternate, long-stalked, tbe 

 3 leaflets entire, feather-veined, mem- 

 branous or leathery: fls. small, monoe- 

 cious. Important generic characters are 

 the 3 leaflets, loose panicles, 5-toothed 

 or 5-lobed calyx, and 5-10 stamen.s, the 

 tilaraents united iu a column under the 

 rudimentar}- ovary. The nearest ally of 

 garden value is Jatropha, in which the 

 fls. have petals, while Hevea belongs to 

 a group in which the petals are lacking. 

 This plant may possibly be cult, under 

 glass for its economic interest in a few 

 botanical collections. It was once adver- 

 tised by Reasoner Bros., Oneco, Fla. 

 The common "rubber plant," extensively 

 cult. North as a house plant, is the East 

 India Rubber Plant, Ficas elastiea. 



Brasili6nsis, Muell. Arg. South Ajier- 

 lOAN Rubber Tree. HefghtGOft.: Ifts. 

 membranous: staminate fls. with buds 

 narrowly ovoid-conical and disc small, 



1054. Hibiscus vesicarius- 

 H. Africanus of gardens. 



nrn-sliape<l, niany-lobed, lonientnse; an 

 tbers 10, in 2 whorls: floral Ifts. 2-3 in. 

 long, elliptic-lanceolate. Brazil. 



HEXtSEA (Greek, six equal things: 

 because the attractive and bright colored 

 ]>arts of the flower are 0, and of equal 

 size). Orehidacew-. Should have been 

 written Hcxisia. This includes a small 

 epiphytic plant which John Saul once 

 advertised as "bearing profuse panicles 

 • if brigbt verniili(m flowers twice a year." 

 The genus ludoiigs to a subtribe closely 

 related to Epidendrnm but with different 

 poilinia. Stems terete or angled, witb 

 usually 2 Ivs. at the apex of each annual 

 growth. New growths arise in the axils 

 of the Ivs., the entire stem being thus 

 njade up of long, fusiform, apparenily 

 superimpo.sed pseudol)uIbs, with 2 Ivs. 

 at each node. Lvs. few, narrow : ra- 

 cemes terminal, the short-peduncled fur- 

 nished with overlapping, leathery scales: 

 fls. orange or purple; anthers semi-glo- 

 bose ; pollinia 4, in 1 series. 

 l'''our specie s, ranging front 

 ^^exi(■o to Guiana. 



bident^ta, Lindl. Height G-H 

 ill. : stem branched, forming 

 spindle-shaped, many-grooved inter- 

 nodes: Ivs. in pairs, 2-4 in. long, 

 'A lines wide, channelled, notched. 

 ma. I!.M.70;n. G.M. ;i7:10. 



H. HASSELBRlN'i. 



HIBISCUS (old Latin name). Mol- 

 vt'ivea . I\l Aicsif Mallow. RoseJIal- 

 L<'W. A ]io|ymor]")bous genus, allied 

 to (.TOss\|dum, Abutilon, Althsea and 

 Malva, the species widely distrilmted 

 in temperate and tropical countries. 

 Herbs or shrubs, or even trees, witb 

 Ivs. palraately veined or parted. 

 Parts of the fl. in 5's; calyx gamo- 

 sepalous, 5-toothed or 5-cleft, suli- 

 tended by an iuvolucel of narrow 

 bracts; corolla usually cainpanulate. 

 showy, of 5 distinct petal.-^; stamens 

 united into a 5-toothed column : ovary 

 r.-loculed, bearing 5 styles : fr. a dry, 

 more or less dehiscent capsule. Be- 

 tween 150 and 200 species. Plorticul- 

 tnrally, there are four general groups 

 of Hibiscus — the annuals, the per- 

 ennial border herbs, tbe hardy 

 shrubs, and the glasshouse shrubs. 

 The calture and treatment vary with 

 these groups. 



INDEX. 



tastf'cnrjnis. 11. 

 Lropoldii. in. 

 /^/^')/,s', -21. 

 :\I;niiliot, '•. 

 unbtaris, 8. 

 Diiiiintus, 21. 

 rilosclieutos, 9. 

 m utabi li s . Srp 



Snppl. list. 

 pa'Oniflorvs, !?•. 

 paliistris. 9. 

 jn/rjnirens, 13. 

 raiivnciilceflorus,}:'.. 

 Rosa-Siuensis. 'J^ . 

 Jioselta, 3. 

 rosens, n. 

 nijjrr, YA, 

 Sabdarilt;^. ::. 

 Siiwnsis. 1*1. 

 speelosus, 7. I-'-. 

 Su!i-riol>irrus. 21, 

 Syria'"-us, 11!. 

 tiliareus. li;, 

 tofns alines, i:;. 

 Trionnm, 2. 

 vesicarius, I. 

 ^'iolacens, V.\. 

 zehrinus. 21. 



af'uleatus, H. 

 Afnca)n's. ]. 

 a/ietiiona-flonn 

 alrond>nis. i:i. 

 birolnr. VA. 

 hrlUlantf^sliniis, ! 

 ('abfoniirus. 11. 

 calvcinns. ]S. 

 raenrlheflurus.!?' 

 cunniKatiis, 21. 

 chrysantlii'S, IS. 1 

 cisplatiinis. I'.i. 

 coccineus, 7. 

 caHestis, VA. 

 Cooperi, 21. 

 Orimsoi) Kvf, 0, 

 Denisoiu. 20. 

 elatiis, l."*. 

 i'le<jaittissinn(s. i: 

 eseulentns, 4. 

 frute.r. VA. 

 fi'le/ens, 21. 

 fiilfiidus, 21. 

 granditloms, 12. 

 Hamabo, 14. 

 heterophyllus, 17 

 im-anns. 10. 

 Krnnr.'.-inus. 21. 



13. 



