254 LXXIII. COMPOSITH (OLIVER AND HIERN). 
seriate, imbricate. Anther-base obtuse sagittate or more rarely sub- 
caudate. Style-branches slender, more or less elongate and tapering, 
papillose or minutely hairy externally—Herbs, shrubs or trees with 
alternate leaves (except in Bothriocline) and purple violet or white 
flowers. 
Capitula separate or axillary, not collected in bracteate 
cymosely arranged heads. 
Achenes crowned by a cartilaginous cup. Capitula lateral 
or axillary, sessile. Pappus 0 Soe ee ee 
Achenes truncate with a submarginal little prominent 
ring or obtuse with an inconspicuous ring. Capitula 
usually terminal or cymose, rarely lateral. 
Pappus 0. 
1. SPARGANOPHORUS. 
. Ernvtia. 
Achenes broadly truncate at the apex . 2 
Achenes rounded at the apex . . . . . . © . 8 GUTENBERGIA. 
Pappus composed of a few caducous sete, not coroniform. 
Setze of the pappus plumose. Leaves alternate . 4, ERLANGEA. 
Setze of the pappus scabrous. Leaves usually oppo- 
. site or verticillate . oe ee ee hehe) 6. BoTHRIOCLINE. 
Pappus partly or wholly composed of numerous usually 
persistent sete . . . . . . . . . . « . 6, VERNONIA. 
Pappus coroniform, composed of short scales, often with 
a few longer sete . oe ee ew ew ee) 67. HERDERIA. 
Capitula collected in globose, terminal, bracteate, solitary 
or ¢ymoseheads . . . . .. .. . . « « « §&. EXEPHANTOPUS. 
Trise Il. Bupatoriaces. Capitula homogamous, florets all 
tubular, hermaphrodite. Involucral scales multi- or sub-2—1-seriate. 
Anther-base neither sagittate nor caudate. Style-branches elongate, 
obtuse, usually more or less clavate, glabrous or papillose.—Herbs or 
shrubs, occasionally scandent with all or the lower leaves opposite 
except Eupatoriwm africanum. Flowers never distinctly yellow, usually 
purplish, rose or white. 
Apex of anther truncate or minutely apiculate. . . . . 9. ADENOSTEMMA. 
Apex of anther with ovate or lanceolate produced connective. 
Sete of pappus 4-5, dilated at base . . . . . . . 10. AGERATUM. 
Sete of pappus o, 
Involucral scales . . . . . . , . «11. EvpatoriuM. 
Involucral scales4 2 2... . . 2... 12. Miwanta. 
Tre IT. A&Asteroides. Capitula heterogamous radiate oT dis- 
coid, outer florets pistillate, inner hermaphrodite or sterile. Involt- 
cral scales oo, 1-co-seriate. Corolla of 9 fl. ligulate or ligule Tu®™ 
mentary or ( and then tubular and often filiform; of 3 fl. regular, 
tubular or dilated above. Anther-base entire obtuse or bidentate 
(rarely sagittate), apex with a produced connective. Style-branches 
flattened more or less with stigmatic margins, apical appendix Janced- 
late to deltoid, papillose. Achenes with setaceous pappus, or pappas 
rudimentary or 0.—Herbs or shrubs. Leaves alternate. 
1§ Grangeinee. @¢ fi. 1-co -seriate, not exceeding those of the disk, tubal’ 
dentate or with rudimentary ligule or campanulate, Pappus 0 or rudimentary, 
few very caducous sete. 
