DAHLIA-DIANTHUS. 93 
DAHLIA 17—2. iCorymbifercB.) [From DaAZ, a Swedish botanist, and pupil of Linnseus.] 
super'^flua, root tuberous, leaves broad-lanceolate, serrate ; 4-6 feet high. Va- 
rieties are numerous, exhibiting splendid and brilliant colours. Blossoms 
in autumn. A native of Mexico. 
DALEA. 16—10. (LeguminoscB.) [In honour of Dr. Dale, who wrote on medicine about the 
year 1700.] 
aure'a, (y. %) erect; spikes dense, cylindric; bracts as large as the calyx; 
calyx villose ; leafets obovate, pilose beneath. 
laxifio'ra^ has white flowers upon panicled spikes. 
alopecuroHdes, has blue flowers upon crowded spikes. 
formo'sa, is a woody, branching plant, with purple flowers. 
DALIBARDA. 11—13. (RosacecB.) [In honour of M. Dalibard.] 
fragaro'ides, (dry strawberry, y. M. % ) leaves ternate; leafets wedge-form, 
gash-serrate, ciliate ; peduncles many-flowered ; tube of the calyx obconic. 
5-81. 
re'fens, stem creeping ; leaves simple, cordate, crenate ; stipules linear, se- 
taceous; peduncles 1-flowered; calyx reflexed, smooth without. Moun- 
tains, Flowers white, on long peduncles. 
DAPHNE. 8—1. (Thymelecz.) [From the nymph Daphne.] 
meze'reum^ (mexereon, M, T7.) flowers sessile, cauline, in threes; leaves lan- 
ceolate. " 
odo'ra, (sweet mezereon, w. Ap. T^.) flov/ers small, in terminal heads ; leaves 
scattered, lance-oblong, glabrous. 
DATISCA. 20—12, {Urticece.} 
hir"ta^ (false hemp, y, %.) stem hirsute; leaves pinnate; leafets running to- 
gether at the base. Flowers small, panicled. 
DATURA. .5-1. (SolanecB.) 
stramo'nium, (thorn apple, w-p. Au. 0.) pericarps spinose, erect, ovate ; 
leaves ovate, glabrous, angular-dentate. 
&'>-bo'rea, (great Peruvian datura, w. Oct.) flowers pentangular, about one 
foot in length, fragrant. Ex, 
CAUCUS. 5—2. iUmbelliferoi.) 
caro'ta, (carrot, w. J, J^.) seeds hispid ; petioles nerved underside ; divisions 
of the leafets narrow-linear, acute, 2-3 f, 
DECODON. 11—1. (Salicarice.) 
verticUla'tum^ (swamp willow-herb, p. Aug. 7]..) leaves opposite, alternate, 
sometimes in threes, lanceolate, petiolated ; flowers axillary, whorled, pe- 
tals undulate ; stem erect, pubescent, 2-3 f. Swamps. 
DECUMARIA. 11—1. {Myrti.) 
barba'ra, (w, Ju.) leaves ovate-oblong, acute at each end, slightly serrate. 
DELPHINIUM. 12—2. {Ranunculacem.) [From delphinos, the dolphin, from the resem- 
blance of the flower to a dolphin's head.] 
consoV'idum, (larkspur, p. Ju. nectaries 1-leafed; stem sub-divided. Ex. 
ela'tum, (bee-larkspur, %.) 6 f , A native of Siberia! 
aja'cis, (rocket larkspur, b, Au. ©.) nectary 1-leafed, Stem simple, 1 f, Ex. 
DENTA.RIA. 14—2. (CrucifercB.) [Either from dens, a tooth, because its root is dentate ; or 
from its supposed virtue in curing the toothache.] 
diphyV'la, (tooth root, y. M. stem 2-leaved ; leafets ternate, sub-ovate, 
unequally and incisely dentate ; root toothed. 6-8 i. 
DIANTHUS. 10—2. {CaryophyllecB.) [From rfios, Jove, and an^/ios, flower, from its superior 
elegance and fragrance.] 
arme'ria, (pink, r. Ju. flowers aggregate, fascicled; scales of the calyx 
lanceolate, villose, equalling' lhe tube. 1 f. 
barba'kis, (sweet-william, r. and w. Ju. ^2 ) flowers fascicled ; scales of the 
calyx ovate-subulate, equalling the tube ; leaves lanceolate, Ex. 
caryophyV'lus, (carnation or pink, and w. flowers solitary; scales of the 
calyx sub-rhomboid, very short ; petals crenate, beardless; leaves linear- 
