DIRCA-EPIDENDRUM. 
95 
DIRCA. 8 —1. (Thynieleo e.) [Prom Dirka, a fountain.] 
palus"tris, (leather-wood, y. Ap. I 2 ) leases oval, alternate, petioled, entire, 
obtuse. Shrub. 2-4 f. 
DODECATHEON. 5—1. ( Lycimachice .) [From dodeka , twelve, and theos , a divinity.] 
med'ia , (false cowslip, p. M. leaves oblong-oval, repandly toothed ; scape 
erect, simple, smooth; umbel many-flowered; flowers nodding; bracts nu¬ 
merous, oval. Flowers large. 1-12 i. 
DRABA. 14—1. ( Cruciferce ,.) [From drasso, to sneeze, from, its effects upon the noses of 
those who eat it.] 
carolin"ia"na , stem leafy at the base, hispid, naked,and smooth at the top; 
leaves ovate, roundish, entire, hispid; pouch linear, smooth, longer than 
the pedicel. Ap. ©. 2-4 i. vv. 
DRACOCEPHALUM. 13—1. ( Labiata .) [From drakon , dragon, kephale , head.] 
virgin'ia'num , (dragon-head, p. Au. 7]..) spikes long, with the flowers crowd¬ 
ed; 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. 
DROSERA. 5—5. ( Hypericea .) [From drosera , dewy.] 
rotundifo'lia, (sundew, y-w. Au. %.) scape simple: leaves nearly orbicular, 
narrowed at the base: petioles long, downy. Wet or damp. 4-8 i. 
longifo'Lia , (y-w. Ju. 7J..) scape simple, leaves spatulate-obovate; petioles long, 
naked. 3-G i. Swamps. 
DRYAS. 11—13. ( Rosacea ,.) [From the Dryads , fabled wood-nymphs.] 
integrity'Ha, (w. Ju. 2 )..) leaves very entire, acute at the base ; peduncles 1- 
flowered. 
ECHINOPS. 17—5. ( Cinarocephalce .) [From echinos , beset with prickles like a hedge-hog.] 
sphceroceph"alus , (globe thistle, b.) leaves pinnatifld; stem branching. Austria. 
ECHIUM. 5—1. (Borag inch.) [From echis, a viper, because it was supposed to heal the stings 
of that reptile.] 
vulga're , (blue thistle, b. M. J\) stem tubercnlate-hispid; leaves lance-linear, 
hispid; spikes lateral; stamens longer than the corolla. 2-3 f. 
ELEAGNXJS. 4—1. ( Eleagni .) [From eleia , the olive.] 
argen"tea, (oleaster, J. Ty) unarmed; leaves undulate, oval-oblong, covered 
with silvery scales; flowers aggregate, .sub-solitary, nodding. Southern. 
The fruit resembles small olives. 
august if o'lius, narrow-leaved oleaster. 
latitytius , broad leaves, green on the upper surface, silvery beneath. 
ELEPHANTOPUS, 17—5. ( Corymbifercb .) [From elephos, elephant, pjons, foot.] 
carolinia'nns, (elephant-foot, r. Au. QJ.) radical and cauline leaves'oblong, 
narrowed at the base, pilose on both sides ; stem erect, pilose, leafy. 2 f. 
ELLIOTTIA. 8—1. (£1 •icce.) [In honour of Elliott, author of the Southern Flora.] 
racemo'sa , (w. J. I 7 .) leaves alternate, lanceolate, mucronate, entire, short- 
petioled, pubescent; racemes terminal. S. 
ELYTRARIA. 2—1. ( Acanthi .) 
mrga'ta, (J. 1 7 .) leaves entire near the summit; scales under the flower ovate, 
villose along the margin. 12-18 i. 
car"d,amon, furnishes the cardamon seeds of commerce; highly aromatic. Ex. 
EMPETRUM. 20—3. (Erica.) [From the Greek en , in, and petron, a stone.] 
nigram, (M. I 7 .) procumbent; branchlets glabrous; leaves imbricate, oblong- 
retuse, glabrous with a re volute margin. A low shrub, found on the White 
Hills, with small pud dense ever-green foliage, like that of the heaths. 
Flowers small, red. Berries black. 
EPIDENDRTJM. 18—1. (Orchidea.) [From epi, upon, and dendron, tree.] 
conop'sium , (air-plant, y. Au.) stem simple; leaves lanceolate, rigid, peren¬ 
nial ; spikes erect; lamina of the lip 3-lobed ; middle one retuse ; inner pe¬ 
tals narrow. Parasite. 
vanil"la , climbing; leaves ovate, oblong, sessile, cauline. The vanilla plant. 
The pericarp, which is a pod, contains aromatic seeds. Ex. 
29* 
