1923] 



GREEN MAN— SOUTH AMERICAN SENECIOS 79 



usually bidentate, yellow; flowers of the disk 10-12; pappus 

 white, about as long as the corolla; achenes glabrous. 



Bolivia: Unduavi, Noryungas, alt. 3300 m., November, 1910, 

 0. Buchtien 3087 (U. S. Nat. Herb., N. Y. Bot. Gard. Herb., 

 fragment and photograph in Mo. Bot. Gard. Herb.), type. 



This species appears to be most nearly related to S. Sepium 

 Schz. Bip. ex Rusby in Bull. N. Y. Bot. Gard. 4:391. 1907, but 

 differs in having lanceolate leaves, which are cuneate at the 

 base, instead of ovate-cordate leaves, and in having persistently 

 papillose-hispid stems. 



Senecio chaquiroensis Greenm., sp. nov. 



Frutex scandens; ramis ramulisque teretibus dense fulvo-his- 

 pidis; foliis alternis petiolatis elliptico-oblongis 2.5-5 cm. longis 

 1.2-2 cm. latis mucronatis vel obtusis calloso-denticulatis vel 

 subintegris supra glabris subtus pallidioribus et valde reticulato- 

 venosis plus minusve puberulentis, marginibus revolutis; peti- 

 olis 5-7 mm. longis canaliculars puberulentis vel glabris; inflor- 

 escentiis paniculatis f ulvo-hispidis ; capitulis homogamis ; involu- 

 cris brevi-calycu latis anguste campanulatis, bracteolis calyculatis 

 triangulari-lanceolatis 1-2 mm. longis acutis ciliatis ; bracteis in- 

 volucri 8 anguste oblongis vel lineari-lanceolatis circiter 5 mm. 

 longis extrinsecus glabris acutis penicillatisque; floribus 12; corol- 

 lis 3-4 mm. longis glabris luteo-albidis pappi setis albidis subae- 



quantibus; achaeniis glabris. 



Stem scandent, ligneous; branches and branchlets terete, 

 densely tawny hispid ; leaves alternate, petiolate, elliptic-oblong, 

 2.5-5 cm. long, 1.2-2 cm. broad, mucronate or obtuse, callous- 

 denticulate or subentire, glabrous above, paler and strongly retic- 

 ulately veined and more or less puberulent beneath, margins 

 revolute ; petioles 5-7 mm. long, canaliculate, puberulent or gla- 

 brous; inflorescence paniculate, tawny hispid; heads homogam- 

 ous; involucres short-calyculate, narrowly campanulate, the 

 calyculate bracteoles triangular-lanceolate, 1-2 mm. long, acute, 

 ciliate; bracts of the involucre 8, narrowly oblong or linear-lan- 

 ceolate, about 5 mm. long, glabrous on the outer surface, acute 

 and penicillate; flowers 12; corollas 3-4 mm. long, glabrous, 

 about as long as the white setae of the pappus; achenes glabrous. 



Colombia: shrub zone, below Paramo de Chaquiro, Cordillera 

 Occidental, Department of Bolivar, alt. 2800-3100 m., February 

 24, 1918, Pennell 4290 (N. Y. Bot. Gard. Herb, and Mo. Bot. 

 Gard. Herb.). 



