DODECATHEON 



3-5 in. long: fls. often few in the umbel, sometimes many, 

 half the size of those of D. itfearf/w, usually deep purple: 

 filaments long, united into a slender tube ; column of 

 blunt anthers relatively short. Exclusively of the Rocky 

 mountain region and subalpine. 



alplnnm, Greene. Smaller than the last, but with fls. 

 twice as large and always with parts in -t's; filaments 

 very short, wholly disconnected : Ivs. narrowly ob- 

 laneeolate or almost linear: corolla of a rich, dark pur- 

 ple. Peculiar to the high Sierra Nevada and Cascades. 



J6!Jreyi, Moore. Lvs. oblanceolate, erect, entire, mu- 

 cronate, 5-lOin. long: scape 1-1'.. ft. high: lis. 4-merous; 

 pedicels and calyx hairy and glandular : segments of 

 the large corolla dark purple; stamens disconnected, 

 dark purple : capsule not exceeding the calyx. High 

 Sierra Nevada and Cascades. 



cc. Capsules circuniscissile at top, this part falling off 

 as a lid. Californian lowland, winter-blooming 

 species, with broad, depressed lvs. ^xcept in D. 

 Clevelandi. 



H^ndersoni, Gray. Lvs. obovoid, ver ituse, entire, 

 depressed, thick and glossy: scapes 8-1 m. high: seg- 

 ments of corolla rose-purple, the base d ^'k maroon en- 

 circled by a band of yellow: cansule ol long, twice the 

 length of the calyx. Calif, to Brit. Columbia. 



cruoiitum, Greene. Foliage as in the last : scapes 

 taller, more slender, few-fld. ; parts of fl. in 4's ; corolla 

 of a darker purple ; anthers more elongated ; capsule 

 longer. Coast Range of Calif. 



pitnlum, Greene. Lvs. as in the foregoing, nearly, 

 but stout scapes only 3-7 in. high : umbel very many- 

 fld. : corolla large, with pale creara-colored segments, 

 sometimes purplish tinged: tube of a dark, velvety ma- 

 roon-purple : anthers very short and broad, of a deep 

 blue-purple: capsule subglobose, hardly surpassing the 

 calyx. Plains of the interior of middle Calif. 



These three species have, among other peculiarities, 

 that of propagating by their roots. Each root, after 

 flowering time, thickens and shortens, detaches itself 

 from the ground and forms a bud at the end, thus be- 

 coming a new plant. 



Clevelandi, Greene. Lvs. more elongated, not de- 

 pressed : scape tall and stout; umbel very many-fld.; 

 corolla usually rose-purple, with yellow base and soni' 

 dark velvety Spots next the stamens, these very shmi 

 and broad, purple. Dry hills of southern Calif. — M<i 

 beautiful species; winter-blooming like the foregoiii- 

 but not propagating by root-metamorphosis. 

 AA. Lvs. and scapes from a horizontal rootstock , th i \ 

 rooting from beneath. Far northwestern species. 



dentitum, Hooker. Pale green, white-fld. species. 

 with broad, subcordate lvs. as in D. cordatum of the 

 southeastern states, but anthers blunt ; lvs. coarsely 

 dentate, but the horizontal rootstock must, as well as 

 the blunt stamens, prevent its being confused with D. 

 cordatum. Washington and Brit. Columbia.— Appa- 

 rently rare. 



frlgidum, Cham. & Schlecht., is a similarly rbizoma- 

 tous species, but with purple fls., from the shores of 

 Behring sea. Is not in cult., nor likely to be. 



viviparum, Greene, is a very large and handsome, 

 purple-fld. species ; subalpine on Mt. Rainier. In the 

 axils of the lvs., along the thick rootstock, bulblets are 

 produced, by which it propagates. Its capsule opens by 

 a lid, as in many far-western species, e. L. Gkeene. 



DODON.SA (from the Greek name of a famous oracle 

 of Jupiter). Sapiiida,-.,, . About fid species of trees and 

 shrubs, widely sc;iiiir.-^l, lini .■.|..rially uhun.laut in 

 Australia. Lvs. :ilii . ■■. ■.\\]<n\,-<. -ini|il.- or 

 abruptly pinnate, in . Iit;ir\ . ^n- in r:ir. mrs, 

 corymbs or panicln- \:.-.<-.\vr l;r'n.,i ini , Fl:i., in- 

 troduced D. remotiflnra an.l /'. diria. Switch Sorrrl. from 

 Australia, In 1889. These names are not found in Index 

 Kewensis. 



DOGBANE is .l;jo(-i/»»»i. 



DOG'S-TAIL GRASS. Eleusine Indica. 



DOGTOOTH VIOLET. Se 



DOGWOOD. Co 



specially Cc 



DOLICHOS (old Greek name). Zegumindsce. Differs 

 from Phaseolus in technical characters : keel of the co- 

 rolla narrow and bent inwards at a right angle, but not 

 distinctly coiled ; style bearded under the stigma, which 

 is terminal; stipules small. Tropical twining beans of 

 perhaps 40-50 species, of which a few forms are in cult. 

 in this country. D. Japonicus, a most worthy orna- 

 mental vine, will be found under Pueraria. For the 

 Velvet or Banana Bean, D. multiflorus, see Mucuna. 

 For D. nngiiiculatKs, see I'igna. 



L^blab, Linn. (I>.c>iltritus,Th.\inh. 

 D. purpi'ireus, Lindl.). Hyacinth 

 Be.in. Tall-twining (often reaching 

 10-20 ft.): leaflets broad-ovate, 

 rounded below and cuspidate-pointed 

 at the apex, often crinkly : fls. pur- 

 ple, rather large, 2— t at the nodes, in 

 a long, erect raceme : pods small 

 (2-3 in. long) and flat, usually 

 oth, conspicuously tipped with 

 the persistent stvle ; seed black, 

 small. Tropics. B. M. 896. B. R. 

 10:830. A. G. 14:84. -Cult, in this 

 country as an ornamental climbing 

 bean, but in the tropics the seeds 

 are eaten. Annual. It is easily 

 grown in any good garden soil. Like 

 beans, it will not endure 

 It is very variable. A form 



illus 



Hort. A form of verv large growth, 

 also white-fld., is D. ijiijunthis, Hort. 

 (Fig. 731). A perennial form (per- 

 haps a distinct species) is D. lig- 

 nd.ius, Linn., the Australian Pea. 



.M. 380. 



Besquipedaiis, Linn. Asparagus 



EAN. FREN-c II YlHD-LONG. TaU- 



KOK Fig. 194. Long- 



ranibhng or twining an- 



» nu.il pl.int, with deltoid- 



o\ ate or deltoid-oblong 



lilunt - pointed leaflets: 



ll^. rather large, 1-3 in 



tlie axils, the peduncles 



s^ ( longating and bearing 



,^ , the pods at their sum- 



I nuts : pods compressed 



or nearly terete, slender 



ind VPrv]o.,i.-(ofton2ft.) 



731. Dolichos Lablab (form dim-colored.-' S^Amer.- 



, , ,1 Cult, as a vegetable gar- 



eieanteus). ^X , > (j^^ esculent, the green 



pods and dry beans being eaten. As easily grown as 



other beans. l, g g 



D6MBEYA (after Joseph Dombey, (1742-1793), 

 French botanist and companion of Ruiz and Pavon in 

 Peru and Chile). !Stercu!i(ice(e. About 24 species of 

 shrubs or small trees of minor importance from Africa or 

 Madagascar: lvs. often cordate, palnijitely nerved: fls. 

 rosy or white, numerous, in loose axillary or terminal 

 cymes or crowded into dense heads; calyx 5-parted, per- 

 sistent ; jietals 5 ; stamens 15-20, 5 sterile, the rest 

 shorter: ovary 3- 5-celled. 



Natalfinsis, Send. Distinguished by its cordate, acute 

 lvs. and the narrowly awl-shaped leaflets of the invo- 

 lucre. Lvs. long, petioled, somewhat angular, toothed, 

 with minute stellate puliesoence, 5-7-ribbed : umbels 

 4-8-ad. Natal. -Cult, in S. Fla. and north under glass. 

 " Very rapid growing, foliage poplar-like : fls. pure white, 

 large, sweet-scented ; a very good winter blooming 

 plant."— Franceschi, 



