52 TEANSACTIOXS AND PKOCEEDIXGS OF THE [Sess. lviii. 



cano-pubescentibus; foliis pinnatis, foliolis 3-8, Scopius 5, 

 alternis, lineari-oblongis, subobtusis, mucronulatis, utrinque 

 sparse appresse cano-pubescentibus ; stipulis lanceolato- 

 subulatis, liberis : racemis longe pedunculatis, elongatis, 

 multifloris, toto appresse cano-pubescentibus ; bracteis 

 parvis caducis, lanceolato-acuminatis ; calyce quam corolla 

 duple breviore, lobis subulatis ; vexillo apice pubescente, 

 ovario cano-pubescente, tereto ; leguminibus ? non vidi. 



Hab. — South Brazil, near Porto Alegre, Tweedie, 370 I 

 Sandy coast of Eio Grande, near St. Pedras, Tweedie, 311! 

 liio Pilcomayo, Kerr ! 



Caules 4-10 poll, longi. Folia h--l poll, longa. 

 Foliolis i-li poll, longis, 1-li lin. latis. Pedunculi 

 1— 2i poll, longi. Pacemi usque ad 4 poll, longi. Flores 

 4-0 lin. longi. 



This plant was confused by Bentham with /. asijcrifolia. , 

 Bong., but it is more slender, with more numerous, smaller, 

 and narrower leaflets ; the flowers are similar, but the 

 calyx-lobes are rather shorter, and the vexillum more 

 densely canous pubescent. I have not seen the fruit 

 (X. E. Brown). 



Sesbania maegixata, Benth. 

 Hab. — Gran Chaco. 



Aeschyxomene hispid a, Willd. 

 Hab. — Eio Pilcomayo. 



Desmodium incanum, do. 

 Hab. — Eio Pilcomayo. 



Erytheina ceus galli, L. 

 Hab. — Eio Paraguay. 



VlGNA LUTEOLA, Benth. 

 Hab. — Eio Pilcomayo. 



Caesalpinia -MELAXOCaepa, Griseb. 



Hab. — Frequent in the "monte duro" on the Pilcomayo. 

 Fl. 11th Xov. Fruit 11th Dec. 



Prov. Arg., Guayacan. 



A large stout tree, bark green and smooth, delicate 

 feathery foliage. 



