96 



FIELD COLUMBIAN MUSEUM BOTANY, VOL. III. 



Willughbaea cordifolia (L.) Kuntze Rev. Gen. PL, 1:372. 

 Cacalia cordifolia L. 



A climbing perennial, frutescent at base, with striate-angled 

 branches, and opposite, petioled, cordate, acute, angular-dentate, 



softly pubescent leaves. Inflor- 

 escence an elongated panicle of 

 opposite, long-peduncled, flat- 

 topped corymbs; branches and 

 pedicels angled, glandular-pu- 

 berulent. Heads 9-10 mm. high, 

 5-7 mm. broad, subtended by a 

 lanceolate bractlet half the 

 length of the involucre. Invo- 

 lucral bracts loosely imbricated 

 in 2 series of 2 each, lanceolate, 

 acute, the outerglandular puberu- 

 lent, inner glabrate or puberulent 

 at the summit exceeding the 

 outer. Corolla white (?). Achene 

 olive brown, .6-.8x 3-3.3 mm., oblong, attenuate at the base; in sec- 

 tion depressed 5 angled, the facets concave; 5 nerved, minutely hispi- 

 dulous on the nerves, sparsely glandular-pubescent between them, or 

 nearly glabrate ; pappus bristles pale rusty, barbellate, 4-5 mm. long. 

 Hab. About Nohcacab, Nov. 1865, Schott 716 ( Mikania cordifolia 

 Willd. Field Col. Mus. Bot. 1 1395). 



Willughbaea scandens (L.) Kuntze Rev. Gen. PL, 1:371. 



Eupatorium scandens L. 



A twining, perennial herb with striate stem and branches and 

 opposite, petioled, hastately-cordate, acuminate, repando-dentate 

 leaves, nearly glabrous or puberulent beneath. Inflorescence of com- 

 pound cymose clusters terminating leafy branchlets; branchlets and 

 pedicels compressed, sparsely glandular-pubescent or nearly glabrate. 

 Heads 5-7 mm. high, 3 mm. or 

 more broad, subtended by anobo- 

 vate, acuminate bractlet nearly as 

 long as the involucre. Involucral 

 bracts imbricated in 2 series of 

 2 each, lanceolate, acuminate, 

 minutely glandular or glabrate, 

 ciliolate at the summit, the inner 

 little longer than the outer. Cor- 

 olla white or pinkish. Achene 

 olive brown, .5x2.4-2.7 mm., 



oblong, narrowed at the base ; in s $> 



section 5 angled, the facets 

 slightly concave; 5 nerved, 

 nerves glabrate, internerves resin dotted; pappus bristles pinkish- 

 tawny or flesh color, hispidulous, 4-5 mm. long. 



