96 EPIG^A-ERYSIMUM. 



EPIGjEA. 10—1. (EncJi.) [From epi, upon, ge, the earth.] 

 re'pcns, (trailing arbutus, r. and w. Ap. T7.; stem creeping; branches and pe- 

 tioles very hirsute; leaves cordate-ovate, entire; corolla cylindric. 

 EPILOBIUM. 8—1. (OnagricB.) [From epi, upon, lobos, apod.] 

 spica'tum, (willow herb, p. Ju. %.) leaves scattered, lance-linear, veiny, glab- 

 rous ; flowers unequal ; stamens declined. 4-6 f. 

 tetrago'imm, (r. Ju. %.) leaves sessile, lanceolate-oblong, denticulate, lower 

 ones opposite; stigma undivided ; stem 4-sided, nearly smooth; flowers in 

 terminal racemes. Low grounds. 2 f. 

 EPIPHEGUS. 13—2. (Pediculares.) [From epi, upon, pAeg-as, the beech.] 

 virginia'nus, (beech drops, cancer root, y. p. Ju. %.) stem very branching ; 

 flowers alternate, distant ; caJyx short, cup-form, shorter than the capsule. 

 The whole plant is yellowish-white, and of a naked appearance. 8-13 i. 

 Astringent. 



BaUISETUM. 21—1. {Fihces.) [From eg?««s, ahorse, seto, bristly.] 

 hyema'le, (scouring rush, Ju. '2J-.) stems erect, very scabrous, bearing spikes at 



the apex ; sheaths 2-coloured, withering at the base and apex ; teeth with 



caducous awns. 2-3 f. 

 ERICA. 8—1. {Ericm.) [From ereiko, easy to tweak.] 

 pubcs".cens, (downy heath, r. M.) corolla linear, pubescent, with the limb 



erect; capsule glabrous; leaves fringed. Ex. 

 cinc'rea, (common heath, p. Au. I^.) leaves narrow-linear, in threes; stem 



branched ; flowers in dense clusters, drooping. Abundant on the heaths of 



England and ScotJand. 

 cilia'ris, leaves in fours, ciliate; coroUa egg-shaped, inflated. In boggy 



grounds. The heaths, though very common in Europe, are all exotics in 



America. 



ERIGONU.V. 9—1. (Polygonem.) [From erion, wool, gonii, joint.] 

 tomcnto'sv-'tn, (Ju. %..) leaves oval, wedge-form at the base, glabrous above, 

 white-downy beneath ; cauline leaves in threes and fours ; fascicles of 

 flowers axillary, solitary, sessile. 2 f. iS. 



ERIGERON. J7-- 2. (.Corymbifercn.) [From er, the spring, geron, an oW maji, because in the 

 spring it has a white, hoary blossom, resembling gray hair.] 



l^ellidifo'Uum, (w-p. M. %.) hairy, gray ; radical leaves obovate, sub-serrate ; 



stem leaves remote, oblong-ovate, amplexicanl, entire; stem 3-5-flowered ; 



rays nearly twice as long as the hemispherical calyx. 12-18 i. 

 philadeVphicum, (w-p. J. %.) pubescent ; leaves wedge-oblong, sub-serrate ; 



cauline ones haif-clasping; ray-florets capillary, as long as the disk; stem 



branched above, many-flowered. 2-3 f. 



f:RODIUM. 15—5. (Germiia.) [From erodias, a stork.] 

 cico'?im?n., (stork-bill geranium, ©.) peduncled; many-flowerea ; leaves pin- 

 nate ; leafets pinnatifid, toothed ; petals oblong, obtuse ; stem ascending. Ex. 

 ciMta'riuvi, (hemlock geranium, p. Ap.©.) peduncles many-flowered ; leaves 



pinnate ; leafets sessile, pinnatifid, gashed ; corolla larger than the calyx ; 



stem prostrate, hirsute. Ex. 

 moscha'tnm, (musk geranium, ©.) peduncles many-flowered ; leaves pinnate ; 



leafets sub-petioled, oblong, gash-toothed; petals equalling the calyx; stem 



procumbent. Ex. 

 ERVUM. 16 — 10. {Legumino$(B.) [From arvum, a. field, growing wild.] 

 hirsu'tuvi, (hairy tare, b-w. J. ©.) leafets linear, obtuse, mucronate; pedun 



cles 3-6-flowered, shorter than the leaves; legume oblong, hairy. 2-3 f. 



Stemdiff'use; leaves cirrose. 

 ERYNGIUM. 5-2. (UmbeUi/er<B.) 

 aquaficum, (button snake-root, w-b. Au. 7]..) leaves ensiform, ciliate-spinose; 



12-18 inches long; flowers in ovate heads at the end of the branches. 

 variti'vium, radical leaves sub-rotund, plicate, spinose; heads of flowers pe- 



('wincled. Sea-holly. Root medicinal. Ex. 



EUVStMUM. 14 — 2. {Crucifcrcb.) [From cruo, to di-aw, from its power of producing blisters. 

 'j.7n,phib"mm, ''wate" radish, v. J. 71.) silique or rather silicle, oblong-ovate 



