DYON^A— DRYAS. 
405 
virgin ica, smooth; stem procambent; 
•eaves lanceolate, opposite, acute, scabrous 
jn the mai'gin ; fruit crowned by the 2-lobed 
calyx; stem smooth, slender, and purple; 
flowers white, solitary. (2^. Sept.) 
D10N.^:'A. 10—1. (Hypericem.) [From Di- 
one, one of the names of Venus.] 
muxcip"ula, (Venus' fly-trap, w. IJ..) rad- 
ical leaves, with terminal, ciliate appenda- 
ges, somewhat resembling a rat-trap ; this 
is suddenly closed, on being imtated. S. 
DIOSCORE'A 20-6. (Asparagi.) [From 
Dioscorides.] 
villo'sa, (May, 11) leaves alternate, op- 
posite, verticillate, cordate, acuminate, pu- 
bescent 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. 
qitnterna'to, (J. Z/.) leaves verticillate by 
fours, and alternate, cordate, acuminate, 
glabrous, 7-9-nerved ; lateral nerves divi- 
ded. Stem climbing. 
DIOSPY'ROS. 20—8. (Rhndodendra.) 
virgin"in'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 yellow. 
Var. pubes"cens, leaves oblong, acute, pu- 
bescent beneath ; petioles long ; fruit bear- 
ing few seeds. S. 
DIPHYL"LIA. 6—1. (Berberides.) [From 
dis, double, phullon, leaf.] 
cymo'sa, (w. J. IX) very glabrous ; leaves 
sub-palmate, angularly lobed, serrate ; cyme 
many-flowered. S. 
DIP"SACUS. 4—1. (DipsacetB.) 
sylves"tns, (wild teasel, w-b. Ju. $ .) 
leaves rarely connate, opposite ; scales of' 
the receptacle straight ; involucrum curved 
upward. 3-4 f. S. 
fullo'num, (teasel, w. Ju. $ .) leaves ses- 
eile, sen ate ; chalF hooked. 3-6 f. 
DIR"CA. 8—1. (ThymelecE.) [From dirka, a 
fountain.] 
palus"tris, (leather-wood, y. Ap. ^.) 
leaves oval, alternate, petioled, entire, ob- 
tuse. Shrub. 2-4 f. 
DODECATH"EON. 5—1. (LycimachicB.) [From 
dodeka, twelve, and theos, a divinity, signi- 
fying tlie twelve Roman divinities.] 
mc'dia, (false cowslip, p. M. Z^.) leaves 
oblong-oval, repandly-toothed ; scape erect, 
wmple, smooth ; umbel many -flowered ; 
flowers nodding; bracts numerous, oval. 
Flowers large. 1-12 i. 
integrifo'lium, (b. J. 2.^.) leaves sub-spat- 
ulate, entire ; umbels few-flowered, straight ; 
bi acts linear. 
DODON^A. 8—1. (Sapindi.) 
viscc/sa, ( ) leaves viscous, ovate- 
oblong, cuneiform at the base. Florida. 
DO'LICHOS. 16—10. {Lr.guminosns.) 
muUijW'nis, (p-w. 2-(.) stem twining, pu- 
bescent ; leaves orbicular, short, acuminate, 
ntfarly glabrous when mature ; racenies ax- 
illary, densely spiked, many flowered, about 
as long as the petioles. 5-10 f Ai k. Geo. 
vurpu're^is, (wild cowhage, p @.) twi- 
I ning ; stem glabrous ; corolla with spread- 
ing wings ; petioles pubescent. S. 
prn'riens, (cowhage, or cowitch, p. ^.J 
twining ; leaves hairy beneath ; legumes in 
racemes ; valves slightly keeled, hairy ; pe- 
duncles in threes ; legumes covered with 
stinging hairs. Ex. 
Inteo'his, (w-y, Ju. 0.) climbing-pubes- 
cent ; leafets ovate, acuminate ; peduncles 
longer then the leaves ; spikes short, some- 
what capitate ; banner broad, reflexed ; 
wings rhomboidal. 4 f. S. 
DRA'BA. 14 — 1. (Cruciferce.) [From drasso, 
to sneeze, from its effects upon the noses of 
those who eat it.] 
caro/i/t''?n na, stem leafy at the base, his- 
pid, naked and smooth at the top ; leaves 
ovate, roundish, entire, hispid ; pouch lin- 
ear, smooth, longer than the pedicel. (Ap 
0. 2-4 i. w.) 
arn'Inzaus, (M. $ .) stem leafy, somewhat 
branched, sub-pubescent ; leaves lanceolate, 
acute, toothed ; silicles acuminate, with the 
permanent style. 
ver"na, (w. M. A. 0.) scapes naked , 
leaves lanceolate, somewhat toothed ; petala 
2-parted ; silicles elliptical. 
DRAr.OCEPII"ALUM[. 13—1. (Labiate.) [From 
drokon, dragon, kephale, head.] 
virgin"ia'nnm; (dragon-head, p. An. 11 
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. 
canarien"se, (balm of Gilead,) flowers 
whorled ; bracts lanceolate ; leaves ternate- 
oblong. Ex. 
corda'tvm, (b. J. 11) stem and petioles 
pubescent ; leaves cordate, obtusely crenate, 
somewhat hirsute above; spikes secund; 
' pedicels 2-bracted. S. 
parvijlo'rum, (w. Ju. $ .) flowers verticil- 
late, sub-capitate ; leaves ovate-lanceolate, 
deeply serrate, petioled ; bracts foliaceous 
ovate, ciliate, serrate ; serratures mucronate ; 
teeth of the calyx unequal, scarcely shortei 
than the corol. S. The canes" ccin^, grand- 
ijlo'rum, and austria'cum, are exotics, and 
have large and splendid blue flowers. 
DROSE'RA. 5—6. (Hypericem.) [From dro- 
sera, dewy.] 
rotundifo'lia. (sundew, y-w. Au. 11.) 
scape simple ; leaves nearly orbicular, nar- 
rowed at the base ; petioles long, downy. 
Wet or damp. 4-8 i. 
longifo'lia, (y-w. Ju. 2/.) scape simple; 
leaves spatulate obovate ; petioles long, 
naked. 3-6 i. Swamps. 
Jilifo/'mis, (p. J. 11.) scape sub-ramose, 
terete, glabrous ; leaves very long, filiform ; 
styles 6 to 9. 
brevifo'lia, (w. r. J. 11 .) very small ; scape 
rooting, simple ; leaves short, wedgeform 
scarcely petioled ; petals oval. S. 
DRV AS. 11—12. (Rosacea:.) [From the 
Dryads, fabled wood-nymplis.] 
integrifo lia, (w. Ju. 1/.) leaves very en 
tire, acute at the base; peduncles 1-flowered, 
oclopefnla, (mountain avens. w. Ju. 11.) 
leaves ovate-oblong, coarsely toothed, ru 
gose, white-tomentose beneath; pedunclea 
one flowered 
