338 BENTHAM ON MIMOSE/E. 



— A. P. trisperma differt aculeis sparsis nee oppositis infrasti- 

 pularibus, foliolis minoribus numerosioribus. Affinis etiam 

 P. macradenia'. et pariter variat caule aculeato v. inermi, 

 suberoso-alato v. vix angulato, facile distinguitur ovarlo 

 glabro. Legumen 4 — 8-poIl. longum, 8 — 10-lin. latum. — 

 Brazil, Pohl, Sella; Rio Janeiro, (xmllemin; near Barro do 

 Jardin, Gardner, (n. 1943.^ The latter specimen is a 

 slight variety with smaller leaves, more crowded leaflets, and 

 longer stipules. 



15. P. rigida (sp. n.), inermis, glabra v. ramulis petiolis- 

 que vix minute puberulis, pinnis 4 — 6-jugis, foliolis multi- 

 jugis lineari-falcatis acutis plurinerviis rigidis supra nitidis, 

 spicis axillaribus subsolitariis, floribus glabriusculis, semini- 

 bus anguste alatis. — Foliola 4 lin. longa. Spicae pollicares. 

 Corolla 1 lin. longa, glabriuscula. Legumen stipitatum 5 

 poll, longum, 7 — 8-lin. latum, marginibus leviter incrassatis, 

 valvulis rigide membranaceis. Semina ovate, plano-com- 

 pressa, oblique transversa, ala membranacea. — Brazil, Sello. 



16. P. pterospertna (sp. n.), inermis, ramis petiolisque 

 pubescentibus, pinnis 4 — 5-jugis, foliolis 8 — 12-jugis oblon- 

 go-linearibus obtusis obliquis, nervo subcentrali, subtus pu- 

 berulis, spicis axillaribus subsolitariis, seminibus lato-alatis. 

 Legumen 5-pollicare, pollicem latum, valvulis ut in praece- 

 dente rigidulis. Semina plano-compressissima, ovato-sub- 

 reniformia, nitida, cum ala 1^ — 2-lineari 9 — 10-lin. lata, 

 5 — 6-lin. longa. 



**** Panic ULATJE,/o?io?/5 latis, ovario suhsessili glabro. 



17. P. paniculata (sp. n.), inermis, ramis petiolisque to- 

 mentellis demum glabratis, pinnis 2 — 3-jugis, foliolis 4 — 8- 

 jugis ovali-oblongis v. lanceolato-ovatis obliquis subtus tomen- 

 tellis, spicis gracilibus nunierosis canescentibus. — Foliola 

 1 — H-pollicaria. Spicae 2 — 3-pollicares, in paniculam am- 

 plam dispositas. Petala apice dorso pubesceutia. Legumen 

 6 — 7-poll. longum, fere 1| poll, latum. — Rio Janeiro, Langs- 

 dorff, Sella, Pohl. 



