DRABA 



BB. Plants perennial. 

 C. Leaves rigid. 



UtLwii, Hook. Forming low, densely tufted, bright 

 green patches : stem much branched, densely clothed 

 with spreading, rosulate Ivs. : Ivs. linear-oblong, ob- 

 tuse, bristly, with a prominent midrib below : scape very 

 short, woolly, 2-4-fld., very short-pedicelled : petals 

 thrice as large as the sepals, obcordate, white: pods el- 

 lipsoid, compressed. Spain. B.M. 6186. 

 cc. Lvs. not rigid. 



FladnizSnais, Wulf (D. nivalis, DC. V. Lappdnica, 

 Willd.). Lvs. oblong-linear to lanceolate, ciliate: pods 

 elliptic-oblong to ovate-lanceolate, not hairy. Arctic re- 

 gions.— According to De CandoUe, these three names 

 were distinct species. 



AAA. Fls. rose or purple. 



PyrenMca, Linn. Height 2-3 in. : lvs. inversely wedge- 

 shaped, 3-lobed at apex: fls. white at first, changing to 

 rosy pink. May. Pyrenees. B.M. 713. — Said to be 

 easily prop, by cuttings. 



viold.cea, DC. Lvs. obovate-oblong. obtuse, equally 

 woolly on both sides : scapes leafy: petals obovate, 

 dark purple. Andes of Equador at elevations of 13,000- 

 15,000 ft. B.M. 5650. ^l. M. 



DEACaiNA (female dragon; the dried juice supposed 

 to resemble dragon's blood). Lilidcecr. A genus of 

 tropical plants of which but few are in cultivation. They 

 are all woody, often arborescent, with sword-shaped or 

 broad lvs., mostly crowded at the summit of the stem: 

 fls. clustered in panicles or heads, greenish white or yel- 

 lowish ; perianth salver-form or companulate ; lobes 

 spreading ; stamens 6 : f r. a 3-celled berry. Differs from 

 Cordyline in having larger fls., and solitary instead of 

 many ovules in each cell of the ovary. All ornamental 

 stove plants, frequently with variegated lvs. See Baker, 

 Journ. Liun. Soc, vol. 14, for a monuKraph of the genus. 

 Oracana Dmco. of the Canaries, is the Dragon Tree. It 

 reaches a height of 30-6(1 ft., branching when of great 

 age. The Dragon Tree of Ten.Tiffe, famous for centuries, 

 is 70 ft. high, and one of tlic oldest of known trees. 



Some American trade names not referable to species 



DRACENA 



503 





Det 



sinrtithilis. See Cordy- 

 1 in this article; also for 

 i^ Vvohahly Cordyline Neo- 



UlizabetJii.r. F,;,h,- 

 monea, Ahx'nuh in . 

 line for otlur iKinn-s 

 culture. /'. .V.'r./-( ■./ 

 CaledoKir,,. Lin.I. ii. 



The following is a key to the cultivated species of 

 both Dracsna and Cordyline, based upon the lvs. : 

 A. Lvs. long and sword-shaped, sessile. 



B. Glaucous beneath, 2-5 in. wide. C.indivisti. 

 BE. Both faces similar, narrower. 



c. Of mature plants quite narrow (6-15 lines 

 broad). C.stricta. 

 cc. Of mature plants broader (1-2 in.). 

 D. Margins green. 



Glaucous green, costate, 1^-2 ft. 



by 15-21 lines. J). Draco. 

 Green, costate, undulate below, 

 2-3V^ft.bvlK-2in. D.tim- 

 hritenlifera. 

 Green, costa obscure, .3-4 ft. by 

 13-18 lines. C. iiti.ttralis. 

 DD. Margins white-pellucid. V. Hook- 



AA. Lvs. oblanceolate, broadly petioled or sessile. 



B. 3-4 in. by lH-2 in., opposite or whorled. D. 



Godseffiana. 



BB. 12-15 in. by 18-21 lines, alternate. C. rubra. 



BBB. lK-3 ft. by 2J^-4 in., alternate. D. fragrans. 



AAA. Lvs. ovate, lanceolate, or elliptical, petioles narrow. 



Lvs. 4-8 in. by 2-2K in., oblong-falcate, green. 



C. Haageana. 



Lvs. 7-8 in. by 4-5 in., oblong, white-spotted. 



D. Goldieana. 



Lvs. 7-10 in. by K-IX in., lanceolate, white- 

 margined. D. Sanderiana. 

 Lvs. 10-18 in. by 1-3K in., elliptical. C. termi- 

 nalis. 

 The following Dracaenas are in the American trade: 



Boerhavii, 1; Draco, 1; fragrans, 4; Godseffiana, 7; 

 Goldieana, 5; Hookeriana, 3; Knerkii, 4; latifolia, 3; 

 Lindeni, 4; Massangeana, 4; Rothiana, 4; Sanderiana, 6; 

 luubraculifera, 2. 



1. Dr&co, Linn. DRAaoN Tree. Arborescent (60 ft. 

 high), branched : lvs. very numerous, crowded, sword- 

 shaped, erect or the outer recurved (lK-2ft.x 15-21 in.), 

 scarcely narrowed below, long-attenuate at the apex, 

 glaucous-green: pedicels 3-6 lines long: bracts minute, 

 lanceolate : perianth 4 lines long, greenish; filaments 

 flat: berries orange. Canary Isl. B.M. 4571. R.H. 

 1869, p. 416; 1880, p. 196. G.C. H. 14: 749. -Fine for con- 

 servatory. D. Boerhavii, Tenore, is a garden form, 

 with elongated lvs. all recurved. 



2. umbraculifera, .TaVq. Arborescent (3-10 ft. high), 

 sinipir : 1\ s. vcr\- luniierous, crowded, sword-shaped 

 (2-:i'._. ft.x I '.-■_• ill. I. oiit.r recurved, all green and shin- 

 ing, iiitfiiiiiiii' III til.- ii|.i\-. scarcely narrowed toward the 

 conspicuously uiiilulati' liase, costa distinct on both 

 faces: pedicels 4-6 in. long: bracts minute, deltoid: 

 perianth large, 2 in. long, white, tmged with red; fila- 

 ments filiform. Mauritius. L.B.C. 3:289. 



3. Hookeri&na, Koch. Trunk 3-6 ft. high, sometimes 

 branched : lvs. numerous, densely clustered, sword- 

 shaped (2-2K ft.xlK-2 in.), outer reflexed, all long at- 

 tenuate at the apex, scarcely narrowed below, margin 

 white-pellucid, lower face concave, indistinctly costate 



pedicels 3-4 in. 

 long: filaments fili- 

 Hope. D. latifdlia, 

 with lvs. 3-3J4 in. 

 B.M. 4279 as Cordy- 



beneath: bracts lK-3 in. 

 long; perianth greenisli. ] 

 form: berries orange, (a 

 Regel, is a horticultural 

 wide. G.C. 20:305 (var. U 

 line Rumphii. 



4. Jrigraiis,Ker-Gawl. (Aletris fragrans, lArm. San- 

 seviera frdgranSy Jacq. ). Arborescent (20 ft. high or 

 more), sometimes branched: lvs. (lK-3 ft.x2H^ in.), 

 sessile, oblanceolate, lax and spreading or recurved, 

 flaccid, green and shmmg, acute, indistinctly costate 

 bracts minute, scanous, deltoid pedicels 1-W in. long 



733 Dracaena fragrans var Llndc 



fls glomerate , perianth 6-8 m long, yellow : berry 

 orange red Guinea BM 1081 AG 18:389. F.R. 

 4:189 —Much used for greenhouse and table decoration. 

 D. Knfirkii, Hort. Form with glossv light green, less 

 pendulous lvs. D. Eothiina, Hort. A garden form. LH. 

 43, p. 97. R.H. 1877, p. (i,s. Var. Lindeni, Hort. (D. Lin- 

 deni, Hort.). Fig. 7:t.!. Lvs. recurved, traversed from 

 base to apes by creaniv wliite )iaTiils. Very decorative. 

 I. H. 27:384. F.R. 4:19i. Var. Massangeina, Hort. (X>. 

 MassangeAna, Hort.). A broad, yellow stripe along 

 the center of the leaf throughout its entire length. 

 F.R. 4:193. 



