560 



EUPATOKIUM 



the reddish veins, opposite, toothed: heads red or pur- 

 ple, aggregated into a very large red-rayed truss. Mex. 

 I.H. 9:310. 



iinthinum, Hemsl (Hehrdlnium idnthinum Hook.). 

 Sub shrub but soft wooded the terete branches rusty- 

 pubescent Ivs opposite long petioled cuneate ovate 

 and sei rate fls light purpli in a large compound ter- 

 minal coiymb Mc\ B M 4 i 



792. Eupatorium perfoUatum (X/^). 



BB. Bends irhite {plants valuable for cut-flowers). 



glechonophyllum, Ijess. {Ager&tum co»sp£ci(M»»,Hort.). 

 Half slirubliy : Ivs. opposite, oval-pointed or ovate- 

 lanceolate, nearly glabrous, 3-nerved, toothed, petiolate: 

 fls. pure white, about 30 in each head. Chile. -Tender 

 glasshouse perennial ; but it may be flowered in the 

 open the first year if seeds are sown early. 



rip&rium, Kegel. Fig. 791 a. Diffuse, becoming 

 woody at base, 2 ft., the stems thin and usually reddish 

 and puberulent : Ivs. opposite, lanceolate-acuminate, 

 narrowed into a long petiole, prominently 3-ribbed, den- 

 tate or crenate-dentate : heads in rather compact, long- 

 stalked clusters. S. Anier.— Good winter bloomer. Best 

 for the florist. 



triste, DC. (E.triiste, Hort.). Fig. 791 6. Strong 

 herb (sub-shrub in the wild), with hairy more or less 

 angled or striate stems: Ivs. long- petioled, ovate or ob- 

 long-ovate, hairy and rugose (reminding one of elm or 

 nettle Ivs.), very veiny, crenate-dentate : fls. many, 

 bright white, in a large, terminal corymb. Mts. of Ja- 

 maica. —Now becoming popular as a pot subject and for 

 cut-fiowers. 



glanduldsum, HBK. (E. adenSphorum, Spreng. E. 

 adendnthum, Hort., not DC. E. Amerlcitnum. Hort.). 



Fig. 791c. Diffuse, at 111. _H, - v<li:it .l.miiil.. nt at 



base, the branches glaTnln' . ^ . ' ' ' '■ -M- or 



cuneate-ovate, slender-jM i ; , -- -i.iiie- 



times unevenly crenate-il. n , -in-' .. i ■. nt be- 



iow: heads pure white, agciaium IiLl. in uIo-l ciuatiTS. 

 Mex. 



glabratum, HBK. {B. ilegans, Uort. E. latUblium, 

 Hort. I . Fig. 791 d. Shrubby, erect, with thin, hard, gla- 



EUPHORBIA 



brous brown stems : Ivs. thickish, small, lance-oblong 

 or ovate-oblong, tapering into a strong petiole, blunt- 

 acute, undulate or small-toothed: fls. (sometimes blush) 

 in ascending clusters, which combine to form a strong, 

 terminal panicle. Mex. 



AA. Hardy or harder plants. 

 B. Heads purple. 



purpireum, Linn. Joe-Pve Weed. Tall, rank plant of 

 low grounds { reaches 8-9 ft. ) : Ivs. whorled, oblong or lan- 

 ceolate, acuminate, coarsely serrate and veiny: heads in 

 large, compound clusters, purple to flesh-color (rarely 

 almost white). Var. maculAtum, Darl. {E. macul&tum, 

 Linn. ), is mostly lower and roughish pubescent, the 

 stem purple-marked. Var. amoenum, Gray. Still lower, 

 (2 ft. high), nearly glabrous, the Ivs. often opposite. —A 

 good species for bold effects in a border or against 

 shrubbery. Common, and widely distributed. 

 BB. Heads white. 

 c. Lrs. perfoliate (united around the stem). 



perfoliatum, Linn. Boneset. Thoboughwobt. Fig. 

 792. Stout, rank-smelling, pubescent, 3-5 ft. : Ivs. lan- 

 ceolate, rugose and pubescent, finely toothed : heads in 

 dense white cymes. — Common in low ground. Much 

 used in domestic medicine. Excellent for striking 

 effects, particularly in low grounds. 



cc. Lvs. not perfoliate. 



altissimum, Linn. Tall ( reaches 7-8 ft. ) , densely pubes- 

 cent, branchy: lvs. opposite, lanceolate-acuminate, the 

 petiole very short, remotely dentate or entire: heads 

 only 5-fld. 'Open places, Pa. southward. 



Album, Linn. One-3 ft., pubescent : lvs. opposite, 

 iicnrlv or quite sessile, oblong or lance-oblong, coarsely 

 serrate. Sandy soil, E. states. 



ageratoides, Linn. f. White Snakeroot. Fig. 793. 

 Neat, glabrous, branchy herb, 3-4 ft. : lvs. opposite, thin, 

 ovate with broad base, acuminate, coarsely and sharply 

 toothed : heads small, in a loose but ample inflorescence. 

 Hich woods. Can. to La. 



aromAticum, Linn. Resembles the last, but usually 

 piilii-sccnt : lvs. tliickish and blunt or merely acute, the 

 teeth blunt, latLT-tioweriiig. Dry soil, E. states. 



Var. melissoides, Grav {E. 

 FrAseri aii.l h:. crdifdiiun, . 

 Hort.). .Sleii.l.r and rourli 

 ish, strict: li.i.ds .';-12-fld.: 

 lvs. subcordate-ovate or ob- 

 long, obtuse, crenulate-den- 

 tate, sometimes with coarser 

 teeth, the petioles very 

 short. S. E states. 



Various species of the old 

 genus Hebecliiuum may be ex 

 peeted in amateur collections 

 especially E macrophyllum 

 Lmn (H macrophyllum Dl i 

 with \ery large sutcordite 

 toothed lvs . purple he i.is iinl 

 purple hairy stems RH I'-M 

 350 Other el i-.sli..u-. 1*1- 

 are E gr , 



toothed h >. 



(R H IK^- / ' 



all, white heads, h »n 

 '.in. Less , from Mex 

 1 m cult as E Weinman- 



f I ill I I 111.- 793. Eupatorium ageratoides. 



f' I (X ;^.) 



Is I white heads, and whole plant 



Kl, I I I III 1) L. H. B. 



EUPHOBBIA (classical name, said by Pliny to be in 

 honor of King Juba's physician; possibly from the 

 Greek word for fat). Ettp7iorbidce(f. Spdrge is a name 

 sometimes applied to the genus as a whole, but is, per- 

 haps, better restricted to one or more species. One of 

 the largest plant genera, of perhaps a thousand species, 

 not less than 700, of very diverse habit, and found in 



