262 Lxxiii. cOMPOSiTiE (OLIVER AND hiern). [Sparganop/ioriis. 



Subacaulescent. Capitula solitary, sessile or 



shortly pedunculate 115. Dianthoseris. 



Caulescent. " Capitula pedicellate, cymose . 1 16. Sonchtjs. 

 Achenes 4-5-costate 117. Latjnjea. 



1. SPARGANOPHORUS, Vaill. ; Beuth. et Hook. f. Gen. PL 



ii. 223. 



Capitula homogamons many-flowered. Involucre hemispherical ; 

 bracts oc-seriate, imbricate, the outer smaller; receptacle plain or 

 slightly convex, naked. Corolla 3-4-fid, segments acute. Anther- 

 base sagittate acuminate ecaudate. Style-branches subulate. Achenes 

 3-4-angled crowned by a cartilaginous obscurely toothed appendix, 

 epappose. — Annual herb. Leaves alternate simple. 



Monotypic. 



Occurs also in Tropical America. 



1. S. "VsLillaJitii, Gaertn. ; DC. Frodr. Y. 12. Erect or decumbent, 

 1^2 ft., glabrous or extremities and unfolding leaves often thinly 

 hirsute or pubescent. Leaves membranous, from elongate-linear-lan- 

 ceolate to elliptical narrowed to each end, repand- or obscurely den- 

 tate to more coarsely serrate-dentate, with petiole usually from 

 3-7 in. long. Capitula closely congested in the axils, sometimes 

 solitary, sessile, ^-^ in. diam. — S. africanus, Steud. DC. 1. c. ; Stru- 

 chium africanunif Beauv. Fl. Owar. i. 81, t. 48. 



Vpper Guinea. Widely spread, variotts collectors. 

 UrUe Iiand. Niamniam-land, Dr. Schweinfurth ! 

 Ziower Guinea. Congo, C. Smith! 



2. ETHULIA, L. ; Benth. et Hook. f. Gen. PI. ii. 224. 



Capitula homogamous many-flowered. Involucre hemispherical or 

 campanulate ; bracts numerous imbricate. Receptacle convex naked. 

 Corolla narrowed below, limb campanulate, 5-fid. Anther linear, 

 base obtuse, apical appendix ovate or lanceolate. Style-branches 

 subulate hairy. Achene 5-4-costate, ribs prominent, truncate above, 

 epappose. — Branching herbs. Leaves alternate simple. Capitula 

 small in corymbose cymes, purplish. 



Includes two species of the Old World tropics. 



1. E. conyzoides, L. ; DC. Prodr. v. 12. Erect, more or less 

 branched, 2-3 ft. or higher. Stem thinly appressed hirsute or gla- 

 brescent, extremities sulcate. Leaves linear-lanceolate to narrowly 

 elliptical or Hnear narrowed to each end, subdistantly sometimes ob- 

 scurely serrate or entire, puberalous or thinly appressed hirsute- tomen- 

 tose especially beneath or nearly glabrous, more or less glandular- 

 dotted beneath, 1-6 in. long, with petiole 5— 1^ in. broad. Capitula 

 ^-^ in. broad in subdense or diffuse corymbose cymes or cymes of 

 fewer heads at the extremities of the upper branches and loosely 

 panicled ; pedicels x^2~2 i^- — ^- S'^^ciZis, Del. Voy. a Meroe, 44, t. 3, 

 fig. 5 (form with more paniculate cymes and suben^ire leaves) ; E, 



