DYONiEA— DRYAS. 



99 



virgin"ica, smooth; stem procumbent; 

 loaves lanceolate, opposite, acute, scabrous 

 on the margin ; fruit crowned by the 2 lobed 

 calyx ; stem smooth, slender, and purple ; 

 flowers white, solitary. (2^. Sept.) 



DI0N.T:'A. 10—1. {Hypcricea:.) [From Di- 

 one, one of tlie names of Venus.] 

 ')nuscip"ula, (Venus' Hy-trap, w. 2X-) rad- 

 ical leaves, with terminal, ciliate appenda- 

 ges, somewhat resembling a rat-trap ; this 

 is suddenly closed, on being- in-itated. (S. 



DIOSCORE'A. 20-6. (Asparagi.) [From 



Dioscorides.] 



villo'sa, (May, If.) leaves alternate, op- 

 posite, verticillate, cordate, acuminate, pu- 

 oescent beneath, 3-nerved. Woods. Stem 

 climbing ; 12 feet high. Flowers small, in 

 panicles. The yam-root of the Indies is 

 obtained from a species of this plant. 



quateran'ta, (J. ll) leaves verticillate by 

 fours, and alternate, cordate, acuminate, 

 glabrous, 7-9 nerved; lateral nerves divi- 

 ded. Stem climbing. 



DIOSPY'ROS. 20—8. (Rhododcndra.) 



virgin" id' na, (persimmon, g-y. May, ^ .) 

 leaves ovate, alternate, oblong, acuminate, 

 reticulately veined, nearly smooth ; petioles 

 pubescent; flowers solitaiy, axillary; fruit 

 as large as a common plum, golden yello^v. 

 Var. piibes"cens, leaves oblong, acute, pu- 

 bescent beneath ; petioles long ; fruit bear- 

 ing few seeds. S. 

 DIPHYL"LtA. 6—1. (Berberides.) [From 



dis, do\ib\e, phuUon, leaf.] 



cymo'sa, (w. J. 2^.) very glabrous ; leaves 

 sub-palmate, angularly lobed, serrate ; cyme 

 many-flowered. S. 

 DIF'SACUS. 4—1. (Bipsacca.) 



sylves"tris, (wild teasel, w-b. Ju. ^ .) 

 leaves rarely connate, oppo.'^itc ; scales of 

 the receptacle straight ; involucrum curved j 

 upward. 3-4 f. S. 



fullo'nnm, (teasel, w. Ju. $) leaves ses- 

 sile, senate ; chaff hooked. 3-6 f. 



DIR"CA. 8—1. (Thymelem.) [From dirka, a 



fountain.] 



palus"tris, (leather-wood, y. Ap. T^.) 

 leaves oval, alternate, petioled, entire, ob 

 tuse. Shrub. 2-4 f. 



DODECATH"EON. 5—1. {LycimacUae.) [From 

 dodeka, twelve, and theos, a divinity, signi- 

 fying the twelve Roman divinitie.?.] 

 me'dia, (false cowslip, p. M. 24^.) leaves 



oblong-oval, repaudly-toothed ; scape erect, 



simple, smooth ; umbel many-Howered ; 



flowers nodding ; bracts numerous, oval. 



Flowers large. 1-12 i. 

 integrij^o'lium, (b. J. 2^.) leaves sub-spat- 



ulate, entire ; umbels few-flowered, straight ; 



biacts linear. 



DOpO'N.^A. 8-1. {Sapindi.) 



vixco'sa, ( ) leaves viscous, ovate- 



oblong, cuneiform at the base. Florida. 

 DO'LICIIOS. 16—10. (Lrguminos^.) 



mnUiJlo'rus, (jt-w. 2^.) stem twining, pu- 

 bescent ; leaves orbicular, short, acuminate, 

 nearly glabrous when mature ; racemes ax- 

 illaiy, den.sely spiked, many-flowered, about 

 as long as the petioles. 5-10 f. Ark. Geo. 



vuTp'i'rcnn, (wild cowhage, p. ^.) twi- 



ning ; stem glabrous ; corolla with spread- 

 ing wings ; petioles pubescent, S. 



pru'riens, (cowhage, or cowitch, p. 0.) 

 twining ; leaves haii-y beneath ; legumes in 

 racemes; valves slightly keeled, hairy ; pe- 

 duncles in threes ; legumes covered with 

 .stinging hairs. Ex. 



/■■/tco'lxs, (w-y, Ju. ip.) climbing-pubes- 

 cent ; leafets ovate, acvtminate ; peduncles 

 longer then the leavc-^ ; spikes short, some- 

 what capitate ; banner broad, reflexed ; 

 wings rhornboidal. 4f.S. 

 DRA'BA. 14—1. (CrucifercE.) [Fromdrasso, 



to sneeze, from its effects upon t!ie noses of 



those who eat it.] 



caroliri'ta na, stem leafy at the base, his- 

 pid, naked and smooth at the top ; leaves 

 ovate, roundi.sh, entire, hispid ; pouch lin- 

 ear, smooth, longer than the pedicel. (Ap 

 ©. 2-4 i. w.) 



ara'hizans, (M. $ .) stem leafy, somewhat 

 branched, sub-pubescent ; leaves lanceolate, 

 acute, toothed ; silicles acuminate, with the 

 permanent style. 



vc)-"na, (w. M. A. ^.) scapes naked » 

 leaves lanceolate, somewhat toothed ; petals 

 2-parted ; silicles elliptical. 

 DRAOOCEPII"ALUM. 13—1. (LabiatcB.) [From 



drakon, dragon, kephale, head.] • 



virgiu'ia'num, (dragon-head, p. An. 2X , 

 spikes long, with the flowers crowded, 

 bracts small, subulate ; teeth of the calyx 

 short, nearly equal ; leaves sessile, opposite, 

 linear-lanceolate, acutely serrate. 12 f. 



cannrieii"i>e, (balm of Gilcad,) flowers 

 whorled ; bracts lanceolate ; leaves teruate- 

 oblong. Ex. 



corda'tum, (b. J. 2^.) stem and petioles 

 pubescent ; leaves cordate, obtu.sely creuate, 

 somewhat hirsute above; spikes secund; 

 pedicels 2-bracted. S. 



parvijlo'rnm, (w. Ju. $ .) flowers verticil- 

 late, sub-capitate ; leaves ovate-lanceolate, 

 deeply sen*ate, petioled ; bracts foliaceous, 

 ovate, ciliate, serrate ; eeiTatures mucronate ; 

 teeth of the calyx unequal, scarcely shorter 

 than the corol. <S^. 'Y\\c cnne$"cenit., grand- 

 ifio'nim, and rni stria' cum, are exotics, and 

 have large and splendid blue flowers. 

 DROSE'RA. 5—6. (Hypericem.) [From dro- 



sera, dewy. J 



rotundifo'lia, (sundew, y-w. Au. 2Lf.) 

 scape simple ; leaves nearly orbicular, nar- 

 rowed at the base ; petioles long, dowTiy. 

 Wet or damp. 4-8 i. 



longifo'Ua, (y-w. Ju. 2X-) scape simple; 

 leaves spatulate-obovate ; petioles long, 

 naked. 3-6 i. Swamps. 



flifoi-^'mis, (p. J. 2X-) scape sub-ramo.se, 

 terete, glabrous ; leaves very long, filiform ; 

 styles 6 to 9. 



brcvifo'lin, (w. r. J. li) very small ; scape 

 rooting, simple ; leaves short, wodgeform 

 scarcely petioled ; petals oval. <S'. 

 DRV'AS. 11—12. {Rosarpo:.) [From the 



Ihi/ads, fablod wood-nymplis.] 



in'fc^rifD'lin. (w. Jn. 2^.) leaves vor^^ en 

 tire, acute at the base; peduncles 1-flowcrcd.. 



odopefnla, (mountain aveiLs, w. Ju. 2^.) 

 loaves ovate-oblong, coarsely toothed, ro 

 go.se, white-tomcnto.se beneath ; pcdunclea 

 one flowered. 



