BENTHAM ON MiMOSEyi:. 335 



binisve SLiperioribus paniculatis; in sectione tertia capitati. 

 Stamina exserta. 



This genus, with the flowers of an Entada, has the fruit 

 of an Acacia. It differs from Adenanthera in the thinner 

 pod, flat seeds, sessile smaller flowers, and lonsrer stamens. 



Sect. I. EupiPTADENiA. Lcgumen continuum, valvulis tenui- 

 ter memhranaceis la.vihus reticulatisve. Frutices, v. ar- 

 hores parvce, florihus spicatis. 



* Latifoli^e; foliis ovatis ohlongisve, ovario stipitato 

 villoso. 



1. P. latifolia, ramis petiolisque glabris aculeatis, pinnis 

 3 — 4-jugis, foliolis 2 — 3-jugis obovatis orbiculatisve glabris. 

 ■ — Acacia fruticosa, Mart. Herb. Fl. Bras., 107. — Frutex 

 scandens, aculeis uncinato-recurvis. Foliola majora polli- 

 cem longa, 9 lin. lata. Spicaj virescentes 2 — 4 poll, longse. 

 Petala demum libera, revoluta. — Woods of Corcovado, and 

 elsewhere near Rio Janeiro ; Martins, Pohl, Vauthier, (n. 

 185,) Guillemin, and others. 



2. P. laxa, ramis petiolisque glabris puberulisve, aculeis 

 sparsis parvis, pinnis 2 — 4-jugis, foliolis 4 — 7-jugis ovali-v. 

 obovato-ellipticis oblonglsve glabris v. subtus pubescentibus. 

 ■ — Affinis P. latifolice. Foliola numerosiora, minora, angusti- 

 ora, saepius pubescentia. Legumen 5 — 6-poll. longum, 

 10 — 11-lin. latum. — Mimosa fruUcosa^ Veil. Fl. Flum. 1 1, t. 

 6 — Rio Janeiro, Gomez; Bahia, Blanchet, 1551, and 1602, 

 and in the Brazilian collections of Pohl and Sello. 



3. P. Guianensis, — Mimosa Gtdanensis, Aubl. PI. Guian. 

 2, 938. t. 357. Acacia Guianensis, Willd., DC, etc.— I 

 have not seen this species which appears to differ from P. 

 laxa, chiefly in the want of prickles and the smooth leaves. 



** Angustifoli^, foliolis Unearihus v. ohlongo-Unearihus 

 parvis, ovario stipitato villoso. 



4. P. macradenia, (sp. n.), ramulis petiolisque tomentosis 

 iiinc inde aculeatis inermibusve, pinnis 6— 10-jugis foliolis 



