124 PROCEEDINGS OF THE AMERICAN ACADEMY 



name which I do not propose to revive, since the stems when well 

 developed are a foot high. It is distinguished from B. paucidentata by 

 its solitary heads, and its campanulate involucre with broader and very 

 obtuse scales. B. coridifolia has clustered and mncli smaller heads, 

 and scabrous-ciliate leaves. — B. juncea, Desf , to which belongs B. 

 sicbtdata, Don, often has the stems leafy, and so lignescent at the base 

 that the root would seem to be perennial. 



SenecionideeB. 



TiTHONiA PUSILLA (sp. nov.) : annua, hispidula ; foliis oppositis 

 subalternisve lanceolatis fere integerrimis breviter petiolatis ; capitulis 

 nudis pedunculatis ; involucri squamis lanceolatis hirsutis subpaucis ; 

 acheniis villosis ; pappi paleis 4-6 aristisque binis plumoso-ciliatis. — 

 Obrajillo, Peru. 



ViGUiERA Peruviana (sp. nov.) : foliis alternis elhpticis seu ovato- 

 oblongis acutatis vel mucronatis acute serratis trinervatis utrinque cine- 

 reis supra hispidulo-scabris subtus appresso-hirsutulis basi acutis sub- 

 sessilibus ; involucri squamis oblongo-lanceolatis apice patentibus extus 

 praesertim ad margines albo-hirsutis ; receptaculo obtuse conico ; ligulis 

 elongatis ; pappo 4-squamellato biaristato. — Andes of Peru, between 

 Obrajillo and Culluay. 



Coreopsis (Agarista) Pickeringii (sp. nov.) : suffruticosa, fere 

 glaberrima ; ramis apice longe nudis monocephalis ; foliis oppositis pe- 

 tiolatis triternatisectis, segmentis lineari-subulatis rhachi tenui vix lati- 

 oribus ; involucri squamis exterioribus linearibus interioribus oblongis 

 dimidio brevioribus ; paleis receptaculi oblongis obtusissimis, exteriori- 

 bus dorso villosis ; acheniis lineari-oblongis dorso sub palea glabris 

 adventrem et prajsertim margines villosissimis biaristatis ; aristis villoso- 

 bai'bellatis corolla paullo achenio dimidio brevioribus. — Higl) Andes of 

 Peru above Obrajillo. — This is one of a group of species of the Andes 

 which unite De Candolle's Californian genus Agarista to Coreopsis. 

 Of these C. fascicuIatajWedd. is in the present collection, and is no. 

 571 of Matthews's collection in the same district, wherefore I had named 

 it C. Matthewsii in the Ilookerian herbarium. It has both faces of the 

 achenia glabrous, but the margins ciliate with long villi. G. venusta, 

 H. B. K., or an apparent variety of it with nearly filiform leaves and 

 smaller heads on short peduncles, was gathered by Matthews in the 

 province of Chachapoyas. O. capillacea, H. B. K., was collected by 

 Seemann at Loxa. And the two succeeding species (of which the latter 



