[Vol. 10 

 78 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



This species is related to S. latijlorus Wedd., but differs in 

 being floccose-tomentulose throughout, in having much smaller 



& **w^.„, ~.+ iit 4..>». & 



and shorter leaves, and in having smaller heads with fewer 

 flowers. 



Senecio auritusWawra Itin. Princ. S. Coburg. 2:47. 1888. 



Brazil: vicinity of Itatiaya, July 26-30, 1915, Rose & Russell 

 20559 (U. S. Nat. Herb., fragment and photograph in Mo. Bot. 

 Gard. Herb.). 



Senecio brachycodon Baker in Mart. Fl. Bras. 6:319. 1884. 



Brazil: vicinity of Itatiaya, July 12(1-30, 1915, Rose & Russell 

 20506 (U. S. Nat. Herb., fragment and photograph in Mo. Bot. 

 Gard. Herb.). 



Senecio Buchtienii Greenm., sp. nov. 



Frutex 2-3 m. altus; ramis ramulisque striato-angulatis per- 

 sistenter papilloso-hispidis; foliis alternis petiolatis lanceolatis 

 vol lanceolato-oblongis 5-8 cm. longis 7-20 mm. latis sinuato- 

 dentatis acutis basi cuneatis juventate parce pubescen tubus de- 

 nique supra glabratis et atro-viridibus subtus pallidioribus nisi 

 in nervo medio glabratis; petiolis usque ad 1.5cm. longis; in- 

 florescentiis terminalibus vel lateralibus laxe corymboso-cymosis 

 bracteatis fusco-pubescentibus, bracteis lanceolatis vel lineari- 

 bus; capitulis heterogamis 1-1.5 cm. altis; involucris anguste 

 campanu latis calyculatis, squamellis calyculatis linearibus 3 mm. 

 vel minus longis ; involucri bracteis 8 lineari-lanceolatis 8-9 mm. 

 longis glabris; floribus liguliferis 5, ligulis parvis linearibus 5-6 

 mm. longis plerumque bidentatis flavibus; floribus disci 10- 

 12; pappi setis albidis ad corollam subaequantibus ; achaeniis 



glabris. 



Shrub 2-3 m. high ; branches and branchlets striate-angled, 

 persistently papillose-hispid; leaves alternate, petiolate, lance- 

 olate or lanceolate-oblong, 5-8 cm. long, 7-20 mm. broad, sin- 

 uate-dentate, acute, cuneate at the base, in the young stages 

 sparingly pubescent, later becoming glabrous and dark green 

 above, paler beneath and glabrous or hirsute pubescent on the 

 midrib; petioles 1 .5 cm. or less in length; inflorescence termin- 

 ating the stem and lateral branches in bracteate tawny pubescent 

 loose corymbose cymes; bracts of the inflorescence lanceolate to 

 linear; heads heterogamous, 1-1.5 cm. high; involucre narrowly 

 campanulate, calyculate, bracteoles linear, 3 mm. or less in 

 length ; bracts of the involucre 8, linear-lanceolate, 8-9 mm. long, 

 glabrous; ligulate flowers 5, ligules small, linear, 5-6 mm. long, 



