E PIPHE aUS— ER YNGIUM. 



101 



BPIPn"EGTJS. 13—2. (Pediculares.) [From 



<:pi, upon, phegan. the beecli.] 



vir'^nnia'nnx, (hcech-drops, canoei'-root, 

 y. p. Jn. li-) stem very branching ; flowers 

 alternate, distant ; calyx short, cup-form, 

 Bhort( r than the capsule. The whole plant 

 is yellowish-white, and of a naked appear- 

 ance. 8-12 i. Astrinp-ent. 

 EQL'ISE'TUM. 21— 1. (Fihcfis.) [From egtius, 



a horse, seta, bristly.] 



hj/ema'le, (.scouring ru.sh, Ju. ll-) stems 

 erect, very scabrou.s, bearing spikes at the 

 apex ; sheaths 2-colored, withering at the 

 base and apex ; teeth with caducous awn.s. 

 2-3 f. 



arve)i"sc, (horse-tail, Ap. 2^.) sterile .stems 

 somewhat decumbent, with simple, square, 

 and scabrous branches ; fertile ones erect, 

 simple; sheaths inci.sely toothed, cylindri- 

 cal ; teeth acute. 



scirpoi'dex, (Ju. I/.) stem simple, a.scend- 

 ing, glabrous, filiform, bearin.-.^ a spike at the 

 top ; sheaths 3-toothed ; teeth withering, 

 with caducous awns at the apex. 3-6 i. 



ulisrino'sum, (Z(.) stem erect, round, fur- 

 rowed, nearly smooth, somewhat branched ; 

 branches from the middle joints unequal ; 

 sheaths seiTate above ; teeth even, acute, 

 black. 

 ERJAN"THUS. 2—2. (Graminecs.) 



alopecuroi'Jes, (p. S. 2/.) hair-like invo- 

 lucre much longer than the glumes ; awns 

 straight. 6-10 I S. 



contor"tns, (Oc. 2-f.) hairy involucre as 

 long as the glume ; inner valve of the pa- 

 leas eared ; awns .spirally twisted. S. 

 ERI'CA. 8—1. (EriccE.) [From ereiko, easy 



to break.] 



pubcs"cens, (downy heath, r. M.) corolla 

 linear, pubescent, with the limb erect ; cap- 

 sule glabrous; leaves fringed. Ex. 



cme'rca, (common heath, p. Au. ^ .) leaves 

 narro\v-linear, in threes ; stem branched ; 

 flowers in den.se clusters, drooping. Abun- 

 dant on the heaths of England and Scot- 

 land. 



cilia'ru, leaves in fours, ciliate ; corolla 

 egg-shaped, inflated. In boggy grounds. 

 The heaths, though very common in Eu- 

 rope, are all exotics in America. 

 ERIGO'NUM. 9—1. {Pohjgoncce.) [From 



erion, wool, gone, joint.] 



tome nto' sum, (Ju. 2^.) leaves oval, wedge- 

 form at the base, glabrous above, w^liite- 

 downy beneath ; cauline leaves in threes 

 and fours ; fascicles of flowers axillary, 

 solitary, sessile. 2 f. S. 

 ERI'GERON. 17—2. {Corymhifcra:.) [From 



er, the spring, geron, an old man, because in 



the spring it has a white, hoary blossom, re- 

 sembling gray hair.] 



bell idifo' Hum, (w-p. M. 2^.) hairy, gray; 

 radical 'leaves obovate, sub-serrate ; stem 

 leaves remote, oblong-ovate, amplexicaul, 

 entire ; stem .T-.l flowered ; rays nearly 

 twice as long as the hemisphei-ical calyx. 

 2-18i. 



philadeVphicum, (w-p. J. li) pubescent; 

 leaves wedge-oblong, sub-serrate, cauline 

 ones half-clasping; ray florets capillary, as 

 long as the disk ; stem branched above, 

 manv-flow^ered. 2-3 f 



1 



jnirpufreum, (O. p. Ju. 11.) pubescent; 

 leaves oblong, toothed, clasping, upper ones 

 entire ; peduncles thickened, corymoed, 

 lower ones elongated; scales of the calyx 

 hairy on the keel ; rays twice as long as tho 

 calyx. 2 f. 



strigo'sum, (O. w. Ju. $ .) strigose-pilo.se; 

 leaves lanceolate, tapering to both ends ; in 

 the middle are a few coarse tt^eih, or they 

 are entire ; flowers corymb-panicled. 2-3 f. 



hcteroj)hi/l''lam, (W. w. J. $ .) radical 

 leaves round-ovate, deeply toothed, peti- 

 oled, cauline ones lanceolate, acute, serrate 

 in the middle ; corymb terminal. 2-3 f. 



cannden"se, (flea-bane, pride-weed, O. 

 w. Ju. 0.) stem hispid, panicled; leaves 

 lance-linear, ciliate ; calyx cylindric ; rays 

 crowded, short. Var. 



nndicfiu'Ie, (E. w. y. J. 11) glabrous, 

 radical leaves lancc-spatulate, acute, slightly 

 toothed ; stem simple, nearly leafless, long ; 

 terminal corymb few-flowered ; rays as long 

 , as the involucre. 2 f. 

 j a^"pefmn, (W. w. Au.) hirsute-scabrous; 

 i stem slender, about 2-flowered ; leaves lan- 

 ceolate, acute, entire ; calyx hemispherical. 

 12 i. * 



ERIOCAU'LON. 19—4. {Junci.) [From erion, 



wool, kaulos, a stem, because some of the 



species have a velvety stem.] 



pellu'cidum, (pipe-"wort, g. Au. l^.) scape 

 very slender, about 7-striped ; leaves linear- 

 subulate, channeled, glabrous, pellucid, 5- 

 nerved, reticulate ; head small, globose ; 

 scales of the involucre oval-obtuse. Grows 

 in water. 6-12 i. 



villo'surn, (Z^.) scapes numerous, com- 

 pressed, about 4-furrowed, villous ; leaves 

 short, subulate, linear, hairy ; head small, 

 spherical; corolla nearly black. 12 i. Charles- 

 ton, S. C. 



ERO'DIUM. 15—5. {G crania.) [From erodias, 



a stork.] 



cico'nium, (stork-bill geranium, 0.) pe- 

 duncled, many-flowered ; leaves pinnate ; 

 leafets pinnatifid, toothed; petals oblong, 

 obtuse; stem ascending. Ex. 



cicnta'rium, (hemlock-geranium, p. Ap. 

 ^.) peduncles many-flowered ; leaves pin- 

 nate ; leafets sessile, pinnatifid, gashed ; co- 

 rolla larger than the calyx ; stem prostrate, 

 hirsute. Ex. 



moschn'tum, (niu.sk geranium, 0.) pedun- 

 cles many-flo\vered ; leaves pinnate ; leafets 

 sub-petioled, oblong, gash-toothed ; petals 

 equalling the calyx ; stem procumbent. Ex. 



ER"VUM. IG— 10. (Leguminosa.) [From 

 crvum, a field. Growing wild.] 

 hirsu'tnm, (hairy tare, b-w. J. %■) leafets 

 linear, obtuse, mucronatc ; peduncles 3-6 

 flowered, .shorter than the leaves ; legume 

 oblong, hairy. 2-3 f Stem diflu-se ; leaves 

 t cirrose. 

 ERYN"GIUM. 5—2. (Umbellifera.) 



aqnaficum, (button snake-root, w-b. Au. 

 j 2^.) leaves ensilbrm, ciliate-spinose ; 12-18 

 inches long ; flowers in ovate licailg at tho 

 end of the branches. 



mantimum, radical leaves sub-rotund, 

 plicate, spinose ; heads of flowers pcduu 

 : cled. Sea-VoM". Root medicuial Ex 

 7* 



