DAHLIA— DENTARIA. 
403 
I)AH"LTA. 17— S. {CorymbiSerce.) [From Dahl, 
a Swedish botanist, and pnpil of 1 nnseus.] 
snpe/'jlua, root tuberous, leav broad- 
lanceolate, serrate; 4-6 feet hig' . Varie- 
ties are numerous, exhibiting si '-^-ndid and 
brilliant colors. Blossoms in MTitumn. A 
native of Mexico. 
frustra'nia, (r. Oc. li.) ravb ^arren: pe- 
tiole wingless; leafets roug. ' h. beneath. 
6 f. Moxico. Var. cocein"ea s-jarlet dai- 
ly,) ractiis of leaves winged; leaflets, 
ovate, acuminate, serrate, shining, and 
smooth beneath; outer calyx reflexed. 
Var. aurait"tia, (orange daily,) rachis of 
leaves naked ; leafets ovate-acuminate, 
Berrate, roughish beneath; outer calyx 
spreading. Var. lu'tea, (yellow daily.) 
leaves pinnate, leafets linear, pinnatilid 
toothed. Exccl"sa, the most remarkable of 
the new species. It is a tree Dahlia, and 
is said to grow in Mexico thirty feet 
iiigh, with a trunk thick in proportion. 
UA'LEA. 16—10. (Leguminos<£.) [In honor of 
Dr. Dale, who wrote on medicine about the 
year 1700.] 
aure'a, (y. 11.) erect ; spikes dense, cylin- 
dric ; bracts as large as the calyx ; calyx 
villose ; leafets obovate, pilose beneath. 
laxijio'ra, has white flowers upon pani- 
cled spikes. 
alopecuroi'des, has blue flowers upon 
crowded spikes. 
jormo'sa, is a woody, branching plant, 
with purple flowers. This species 
furnishes green-house shrubs with pin- 
nate leaves and papilionaceous flow- 
ers. 
DALIBAR"DA. 11—12. {Rosacea.) [In honor 
of M. Dalibard.] 
fragaroi'des, (dry strawberry, y. M. 
leaves ternate ; leafets wedge-form, gash- 
serrater ciliate ; peduncles niauy-flowered ; 
tube of the calyx obconic. 5-8 i. 
re'pens, stem creeping ; leaves simple, 
cordate, crenate ; stipules linear, setaceous; 
peduncles 1-flowered ; calyx reflexed, 
smooth without. Mountains. Flowers 
white, on long peduncles. 
DANTHO'NIA. 3—2. (Grceminea.) [Named 
in honor of M. Dantlioin, a French botanist.] 
spica'ta, (Ju. 2^.) panicle simple, appress- 
ed ; spikelets 7-9. about 7-flowered ; lower 
palea hairy ; leaves subulate ; lower sheaths 
hairy at the throat. 
DAPH"NE. 8—1. (TliymeUie.) [From the 
nymph Daphne.] 
rneze'reum, (mezereon, M. flowers 
eessile, cauline, in threes ; leaves lanceolate. 
odo'ra, (sweet mezereon, w. Ap. Tp.) 
flowers small, in terminal heads; leaves 
scattered, lance-oblong, glabrous. 
DARLINGTO'NIA. 15—10. {Leguminosa.) 
[Named after Dr. W. Darlington of Penn.] 
intermedia, [11.) glabrous, herbaceous, 
unarmed; leaves 8 or 9 pairs; leafets 20 to 
24 pairs, oblong-linear, with glands between 
the lower leaves ; little heads solitary, pe- 
iancled, axillary ; legumes falcate. 
)AT1S"CA. 20—12. {UititecR) 
hir"ta U'alse hemp, y. ) atem hirsute ; 
leaves pinnate ; leaftts running tns^ether a 
the ba.se. Flowers small, panicled. 
DATU'RA. 5-1. (Solanem.) 
stramo' riiiim, (thorn apple, w-p. Au. 
pericarps spinose, erect, ovate ; leaves ovate 
glabrous, angular-dentate. 
arbo'rea, (great Peruvian datura, w. Oct.) 
flowers pentangular, about one foot in 
length, fragrant. Ex. 
tat'uLa, (purple thorn apple, b. Ju. j^.J 
pericarps spinose, erect, ovate ; leaves cor 
date, glabrous, toothed. Stem reddish. 
m^tel,[w. J. @.) leaves cordate, nearly 
entire, pubescent; pericarps prickly, glo 
hose, nodding. 
DAU'CUS. 5—2. (UmbcllifercE.) 
caro'ia, (carrot, w. J. ^ .) seeds hispid; 
petioles nerved underside ; divisions of the 
leafets narrow-linear, acute. 2-3 f. 
DECO'DON. 11—1. (SaUcarice.) 
verti cilia' turru, (swamp willow-herb, p. 
Aug. 11.) leaves opposite, alternate, some 
times in threes, lanceolate, petiolated ; flow 
ers axillary, whorled; petals undulate ; stem 
erect, pubescent. 2-3 f. Swamps. 
DECUMA'RIA. 11—1. (Myrti.) 
barba'ra, (w. Ju.) leaves ovate-oblong, 
acute at each end, slightly serrate. 
DELPH1N"1UM. 12—2. ( Ranunculacem.) [From 
dclphinos, the dolphin, from the resemblance 
of the flower to a dolphin's head.] 
azu'remn, (M. IX. ) petioles a little dilated 
at the base ; leaves 3-5 parted, many cleft, 
lobes linear; raceme erect; petals dense- 
ly bearded at the apex; flowers on short 
pedicels. 
exalta'tum, (b. Ju. If.) petioles not dila- 
ted at the base ; leaves flat, 3-7 cleft beyond 
the middle ; lobes cuneate, 3-cleft at the 
apex, acuminate ; lateral ones often 2-lo- 
bed ; raceme erect ; spur straight, about as 
long as the calyx; capsules 3. 
tricor"ne, (b-w. M. 2^.) petiole scarcely 
dilated at the base, glabrous ; leaves 5-part- 
ed ; divisions 3-5 cleft, segments linear ; 
nectary shorter than the corol; carpela 
arched, expanding from the base 8-12 i. S. 
consol'idum, (larkspur, p. Ju. ^.) necta- 
ries 1-leafed ; stem sub-divided. Ex. 
ela'tum, (bee-larkspur, 2^.) 6 f. A native 
of Siberia. 
aja'cis, (rocket larkspur, b. Au. 0.) nec- 
tary 1-leafed, stem simple. 1 f. Ex. 
DENDROM"ECON. 12—2. (Pajiaveracea.) 
ri'gidum, (y. ^.) glabrous, branching; 
leaves »igid and coriaceous, articulated 
with the stem, lanceolate or oblong, cus^pi 
date, acuminate, strongly reticulate, den- 
ticulate on the margin ; peduncles axillary 
1-flowered; flowers large; a shrub. Cali- 
fornia. Poppy-tree. 
DENTA'RIA 14—2. (Cruciferm.) [Ei'.het 
from dens, a tooth, because its root is den- 
tate ; or from its supposed virtue in curing 
the toothache.] 
diphyV'la, (tooth-root, w. M. 2X.) stem 2- 
j leaved ; leafets ternate, sub ovate, une<iaal« 
! ly and incisely dentate ; root toothed. 6 8i 
lacinia'ta, (w. M. If.) leaves in threes, 
teniate ; leafets 3- parted, segmenis oblong, 
gash-toothed ; root tuberous, moniliform S i 
