560 



EUPATORIUM 



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

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



pie, 

 l.H. 



:310. 



idnthinum, Herasl. {RebecUnium idHlhimtm, Sook.). 

 Sub-shrub, but soft-wooded, the terete branches rusty- 

 pubescent ; Ivs. opposite, long-petioled, cuneate-uviiic 



mmal corj-mb Me\ B M 4)4 



792. Eupat( 



BB. Heads u'hit 



glechonoph^llui 

 Half shrubby: Ivs. ..pposit,., ..val-i...ii.t,-.l or ovate- 

 lanceolate, nearly glabrous, a-nerveil. 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. 



Tip&iium, Regel. Fig. 791 a. Diffuse, 'becoming 

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

 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. Amer.— Good winter bloomer. Best 

 for the florist. 



triste, DC. {B.MMe, Hort.). Fig. 7916. 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 :i \\nt subject and for 

 cut-fiowers. 



glanduldBum, HBK. (E. uilm.'iiihorum, Spreng. E. 

 adenchithum, Hort., not DC. A'. AmerioAnum, Hort.). 

 Fig. 791 c. Diffuse, at length somewhat decumbent at 

 base, the branches glandular-hairy : Ivs. deltoid- or 

 cuneate-ovate, slender-petioled, coarsely and some- 

 times unevenly crenate-dentate, sparsely pubescent be- 

 low: heads pure white, ageratum-like, in close clusters. 

 Mex. 



glabritum, HBK. (E. negnns. Hort. E. laliKlium, 

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



EUPHORBIA 



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

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

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

 in ascending clusters, which combine to form a strong, 

 terminal panicle. Mex. 



AA. Hardy or harder plants. 

 B. Heads purple. 



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

 low grounds { reaches b-U ft.) : Ivs. whorled, oblong or lan- 

 <■<■<, late, acuminate, coarsely serrate and veiny: heads in 

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

 almost white). Var. maculitum, Darl. {E. niacuUlum, 

 Liun.),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 fca* bold effects in a border or against 

 shrubbery. Common, and widely distributed. 

 BE. Reads uhite. 

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



perfoli&tum, Linn. Boneset. Thoroughwort. Pig. 

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

 ceolate, rugose and pubescent, finely toothed: heads in 

 dense white cvmes.— Common in low ground. Much 

 used in domestic medicine. Excellent for striking 

 effects, particularly in low grounds. 



cc. Lvs. not perfoliate. 



altlssimum, 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, 

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

 serrate. Sandy soil, E. states. 



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

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

 ovate with broad base, acuminate, coarsely and sharply 

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

 Kich woods. Can. to La. 



arom&ticum, Linn. Resembles the last, but usually 

 liubescent: lvs. tliickish and blunt or merely acute, the 

 teeth blunt, later-flowering. Dry soil, E. statr-s. 



Var. melissoldes, Gray (£'. 

 FrAseri and E. cordifblium , 

 Hort. ) . Slender and rough- 

 ish, strict : heads 5-12-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 Hebeclinium may be ex- 

 pected in amateur collections, 

 especially E. macropbvtlnin, 

 Linn. (H. macrophyllum, DC), 

 with very large subeordate- 

 toothed lvs., pui-ple heads and 

 purple-hairy stems. R.H. 1866; 

 y50. Other glasshouse species 

 are : E. orandiftbrum, Andre. 

 with rugose cordate coarse- 

 toothed lvs. aud reddish heads 

 (R.H. 1882:384); E. Haagea- 

 liioH.Rii;.! ,ic K.i rii.withoval- 



N.E. 



■•sticky (Ij.i 



lvs. 



r^'p 793. Eupatorium ageratoides. 



lvs'.. white heads, and whole plant 

 ■■■■>-H>- L. H. B. 



EUPH6RBIA (classical name, said by Pliny to be in 

 honor of King Juba's physician ; possibly from the 

 Greek word for fat). EuphorbiAcea'. Spurge 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 



