HEUCHERA 



C. B.B. 2: 179. -"Evergreen foliage marbl 

 with bronzy Ted."—Woolson.' 



DD. Calyx prominently oblique. 

 hispida, Pursh. Height 2-t ft. Woods, \ 

 to Idaho. B.B. 2:180. 



cc. Inflorescence a spike. 

 cylindrica, Dougl. Height 10-2-t 

 in. Yellowstone Parli westward. 

 B.R. 23:1924. 



BB. Scapes not hairy. 

 c. Inflorescence a loose panicle. 

 parvifaiia, Nutt. Height K-2 ft. New 

 Mex. to Mont. 



CC. Inflorescence denser, spicate. 



bracteita, Ser. Height 3-C in. Colo. 



AA. Stamens and styles much exserled 



at least at first. 



B. Length of calyx S-5 lines. 



rubeacens, Torr. Height 8-15 in.: 



scape usually leafless, glabrous 



what scabrous: margin of Ivs. ciliate. 



New Mex. to Nev. 



BB. Length of calyx I}4-3 lines. 

 Americana, Linn. Alum Root. Height 

 2-3 ft. : scape leafless or with a few 

 Ivs., more or less glandular-hirsute. Dry 

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

 B.B. 2:179. R.H. 1898. p. 431. -"Has 

 mottled foliai;e."- Oilli It. 



BBB. Lin,/tl, ..f .u,l,if 1^1'., Ii„,s. 



C. Scape rillous. ;.,.., I, „s, /n ,:.i;r,,l 



tl-Uh lung, .yv/t hairs. 



yilldsa, Michx. Height 

 1-3 ft.; scape mostly 

 leafless. Rocky places, 

 Va. to Ga. and Tenn. 

 B.B. 2:179. 



CO. Scape thinly covered with minate 

 glandular hairs, 



micrintha, Dougl. Height 1-2 ft. Calif. 

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



The following names are seen in tr.%de cat 

 alogues but not in Index Kewensis. H. pur 

 purdscens was advertised 1898, by H. Corre 

 von, Geneva, Switzerland. Plants ii 

 can trade are not yet large enough for identi- 

 fication,— H.ir/ieeicri was found in the South 

 some years ago, and Thomas Meehan, who 

 has not examined it closely, says it looks like 

 a form of H. Canadensis with variegated Ivs. 

 W. M. 



HfiVEA (from the Brazilian name). 

 £uphorbiilce<e. This includi 

 that produces the Fara rubber of com 

 merce. The genus contains 11 species 

 of tall trees from Brazil and Guiana 

 furnishing the milky juice called 

 chouc: Ivs. alternate, long-stalked, the 

 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 

 filaments united in a column under the 

 rudimentary 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, Ficns elastica. 



BrasUi^nsis, Muell. Arg. South Amer- 

 ican Rubber Tree. Height 60 ft. : Ifts. 

 membranous : staminate fls. with buds 

 narrowly ovoid-conical and disc small. 



urn shaped, many lobed tomentose; an- 

 thers 10 m 2 whorls floral Ifts. 2-3 in. 

 long, elliptic lanceolate Brazil. 



HEXlSEA (Greek, six equal things; 

 because the attractive and bright colored 

 parts of the flower are 6, and of equal 

 Orchidictce bhould have been 

 risid This includes a small 

 eplph^tlc pHrt which John Saul once 

 adxpiti m| 1 I in '] lofuse panicles 



I M I ^ twice a year." 

 I lie I ubtribe closely 



it I it I I I I ut with different 



["liiiiii ^1 II III or angled, with 

 usuallj 2 h it tilt ipex of each annual 

 growth. New growths arise in the axils 

 of the Ivs., the entire stem being thus 

 made up of long, fusiform, apparently 

 superimposed pseudobulbs, with 2 Ivs. 

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

 eraes terminal, the short-peduncled fur- 

 hed with overlapping, leathery scales : 

 orange or purple; anthers semi-glo- 

 bose ; pollinia 4, in 1 series. 

 Four species, ranging from 

 Mexico to Guiana. 



bidentata, Lindl. Height 6-8 

 in.: stem branched, forming 

 spindle-shaped, many-grooved inter- 

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

 3 lines wide, channelled, notched. 

 Panama. B.M. 7031. G.M. 37:19. 

 H. Hasselbring. 



HIBISCUS (old Latin name). Mal- 

 vaeete. Marsh Mallow. Rose Mal- 

 low. A polymorphous genus, allied 

 to Gossypium, Abutiion, Althfea and 

 Malva, the species widely distributed 

 in temperate and tropical countries. 

 Herbs or shrubs, or even trees, with 

 lvs. palmately veined or parted. 

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

 sepalotis, 0-tootlied or 5-cleft, sub- 

 tended by an involucel of narrow 

 bracts; corolla usually campanulate, 

 •ihowy. of 5 distinct petals; stamens 

 united into a n toothed column : ovary 

 j-loculed, bearing 5 styles: fr. adry, 

 more or less dehiscent capsule. Be- 

 tween 150 and 200 species. Horticul- 

 turally, there are four general groups 

 of Hibiscus-the annuals, the per- 

 ennial border herbs, the hardy 

 shrubs, and the glasshouse shrubs. 

 The culture and treafnvent vary with 



