792 LXV. COMtOSlTi®. 



8. EUPATORIUM, Linn. 



(After Eupator, king of Pontus.) 



Involucre hemispherical, oampanulate or cylindrical, the bracts imbricate, in 2 

 or more series. Beceptacle fiat or slightly convex, M'ithout scales. Florets 

 numerous or few, all tubular, hermaphrodite, o-toothed. Anthers obtuse at the 

 base. Style-branches elongated, obtuse. Aehenes 5 -angled, without inter- 

 mediate strisB. Pappus of a single series of capillary bristles. — Perennial herbs 

 or shrubs or very rarely annuals. Leaves usually opposite. Flower-heads mostly 

 corymbose. Green parts of the plant often sprinkled with resinous dots. 



A vast genus, the great majority of species being American, a few ranging over eastern Asia, 

 and one extending to Europe and Australia. 



1. E. cannabinum (Hemp-like), Linn.; DC. Prod. v. 180 ; Benth. Fl. Austr. 

 iii. 462. Hemp Agrimony. A perennial willi erect stems of 3 to 4ft., slightly 

 pubescent. Leaves divided to the base into 3 broadly lanceolate coarsely-toothed 

 segments, often 4 or 5in. long, those of the upper leaves smaller and sometimes 

 very narrow, the uppermost leaves rarely undivided. Flo.wer-heads numerous in 

 compact terminal heads. Involucres cylindrical, of few unequal bracts, the inner 

 ones often coloured. Florets usually 5, purple or rarely white. — E. Lindleyanum, 

 F. V. M. Fragm. v. 62, not of DC. 



Hab.: Near border oi New South Wales, F. v. Mueller. 



Very common in the temperate regions of the northern hemisphere in the Old World. 



9. DICHROCEPHALA, DC. 



(Referring to the two-coloured head of florets.) 



Flower-heads heterogamous globose or disciform, many-flowered, outer female 

 florets in numerous series, those of the disk hermaphrodite. InvolucTe incon- 

 sj)icuous, scales sub-biseriate, subequal, membranous-margined. Keceptaole 

 convex columnar or turbinate, naked. Corolla of the female florets rotate- 

 campanulate, 3 to 4-fid or tubular-dentate ; of the hermaphrodite florets tubular, 

 dilated above, 4 to 5-toothed, or campanulate, constricted below. Anther 2-toothed 

 at the base. Style-branches flattened with lanceolate or ovate appendix. Aclienes 

 compressed, pappus wanting (or of the hermaphrodite florets very minute). — 

 Annual herbs. Leaves alternate, dentate or lyrate-pinnatifid. Flower-heads 

 small with inconspicuous involucres in terminal, often divaricate, panicles. 

 Female florets white ; hermaphrodite florets violet or purple. — H. and B. Gen. 

 Plant, i. 260. 



1. B. latifolia (broad-leaved), DC. Prod. v. 872 ; Oliv. Fl. Trap. Afr. iii. 

 303. An erect or ascending herb, i to 5ft. high, asperulous or minutely setulose ; 

 stem and branches angular. Leaves lyrate-pinnatifid, acute or obtuse, terminal 

 lobe ovate or ovate-rotundate, or lateral lobes wanting, dentate, sessile or attenuate 

 at the base into a late or slender petiole, membranous, 1-^^ to Sin. long ; upper 

 ones smaller. Flower-heads subglobose, many-flowered, If to 8 lines diameter, 

 on unequal pedicels ranging up to lin. long, in lax terminal divaricate panicles. 

 Scales of involucre sub-biseriate, obovate or broadly elliptical, membranous- 

 margined, fimbriate-ciliate, nearly glabrous. Receptacle depresso-convex, 

 glabrous, papillose-pitted, constricted below, about i line broad, corolla of female 

 floret tubular, 2 to 8-dentate, of the hermaphrodite florets campanulate constricted 

 below. Aehenes obovate, compressed, glabrous or very nearly so. — Oliver I.e. 



Hab.: The plant enjoys a wide range, being indigenous to tropical and South Africa, the East 

 Indies, Hongkong, and many other places, including North Queensland. — F. v. Mueller. 



