DIRCA-EPIDENDRUM. 95 



DIRCA. 8—1. (.Thymelecn.') [From Z>ir.ta, a fountain.] 

 palus"lris, (leather-wood, y. Ap. l^) leaves oval, alternate, petioled, entire 

 obtuse. Shrub. 2-4 f. 

 DODECATIIEON. 5—1. (,Lycimachi(B.) [From ilode/ca, twelve, and thecs, a divinity.] 

 med'ia, (false cowslip, p. M. '2|..) 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. (CrucifercB.) [From drasso, to sneeze, Irom its effects upon the nosos of 

 tliose wlio 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 thau 

 the pedicel. Ap. ©. 2-4 i. w. 

 DRACOCEPHALUjVI. 13—1. {Labiatm.) [From drakon, dragon, kephale, head.] 

 virgin'ia'num, (dragon-head, p. Au. %.) 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. 

 ca7iarien"se, (balm of Gilead.) flowers whorled; bracts lanceolate; leaves 

 ternate oblong. Ex. 

 DROSERA. 5 — 5. (^Hypericeab.) [From rfrosera, 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. 7|.) scape simple, leaves spatulate-obovate; petioles long, 

 naked. 3-6 i. Swamps. 

 DRYAS. 11 — 13. (RosacecB.) [From the Dryads, fabled wood-nymplis.] 

 iiUcgrifo'lia, (w. Ju. %.) leaves very entire, acute at the base ; peduncles 1- 

 flowered. 

 ECHINOPS. 17—5. (Cinarocephalm.) [From echinos, beset with prickles like a hedge-hog.] 

 spharoceph"alus, (globe thistle, b.) leaves pinnatifld ; stem branching. Austria. 



ECHIUJM. 5—1. (.BoTagincn.) [From ec/«s, a viper, because it was supposed to heal the stings 

 of that reptile.] 

 vulga're, (blue thistle, b. M. J*.) stem tuberculate-hispid; leaves lance-linear, 

 hispid ; spikes lateral ; stamens longer than the corolla. 2-3 f. 

 ELEAGNUS. 4—1. (Eleagni.) [From eZe/a, the olive.] 

 argen^tea, (oleaster, J. T^.) unarmed; leaves undulate, oval-oblong, cov^ered 

 with silvery scales; flowers aggregate, sub-solitary, nodding. Southern. 

 The fruit resembles small olives. 

 angustifo'lius, narrow-leaved oleaster. 



latifo'lius, broad leaves, green on the upper surface, silvery beneath. 

 ELEPHANTOPUS. 17—5. {Corymbiferai.) [From e/epAos, elephant, /jous, foot.] 



carolinia'nus, (elephant-foot, r. Au. %) radical and cauline leaves oblong, 

 narrowed at the base, pilose on both sides ; stem erect, pilose, leafy. 2 f. 

 ELLIOTTIA. 8—1, (EriccB.) [In honour of EUiott, author of the Southern Flora.] 

 racemo'sa, (w. J. Tj.) leaves alternate, lanceolate, mucronate, entire, short- 

 petioled, pubescent , racemes terminal. S. 

 ELYTRARIA. 2—1. (Acanthi.) 

 virgo/ta, (J. Yi.) 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. (Ericca.) [From the Greek en, in, and petron, a stone.] 

 nigravi, (M. I7.) procumbent; branchlets glabrous; leaves imbricate, oblong- 

 retuse, glabrous with a revolute margin. A low shrub, found on the White 

 Hills, with small and den.se ever-green foliage, like that of the heaths. 

 Flowers small, red. Berries black. 

 EPFDENDRUM. 18—1. (Orchidem.) [From e/»i', upon, and denrfron, 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. 

 vanW'la, climbing; leaves ovate, oblong, sessile, cauline. The vanilla plain. 

 The pericarp, which is a pod, contains aromatic seeds. Ex. 

 29* 



