BENTHAM ON MIMOSE^E. 365 



22. M. insldhsa (Miirt. llerh. F\. Bras. 131..), herbacea 

 V. suffruticosa, aculeis patentibus rectis raris, caiile erecto 

 subsimplici petiolisque stri<roso-hispidis eglandulosis, pinnis 

 petiolo muko longioribus, Ibliolis 20 — 25-jiigis oblique ob- 

 iongis aciitis mucronatis coriaceis marginatis setuloso-ciliatis 

 glabris v.subtu.s inferioribus slrigosis, capitulis globosis hirtis, 

 bracteolis corollas aequantibus calycibus, Jongiuscule ciliatis, 

 legumine undique dense setoso sells marginalilius validiori- 

 bus. — JMinas Geraes ; .Martlus, Claussen. — I luive little 

 doubt that this is Martins' plant ihougb I have not seen his 

 own specimens. It diiFers from the last in the number of 

 leaflets and the nature of the hairs. 



23. M. ohlonga (sp. n.), fruticosa? ramosa, aculeis tenu- 

 ibus recurvis raris, caule peduncuiisque patentim setoso-his- 

 pidis et pube brevi canescentibus, petiolo brevissimo, foliolis 

 25 — 35-iugis linearibus mucronulatis leviter marginatis cili- 

 atis utrinque glabris v. subtus pube minute pallidis, capitulis 

 cylindraceis, bracteis corolla brevioribus, calycibus minutis 

 ciliatis. — Stipulae setacese, ciiiato-hispida?. Foliola H — 3 lin. 

 longa. Pedunculi tenues. Capitula (v, spicae) semipolli- 

 caria. Corolla strigis reversis canescens. — Brazil; Sella. — 

 A very distinct species, unless it be a prickly form of J/. hir~ 

 siitissima, Mart., with which 1 am unacquainted. The 

 prickles are however small and only on the younger branches. 



§ 4. Pect'matcc. Arbores, frutices v. herbiB, aculeis omnibus 

 V. nonnullis infrastipularibus armalas. Pinnas unijuga?. 

 Foliola pluri-v. sa?pius multijugae. Inflorescentia et legu- 

 men Castaruin v. S ens iti varum. — Inter has et Meticulo- 

 ms, media. A S ensitivis foWoVis multijugis, a Castis acu- 

 leis infrastipularibus, a Meticulosis aculeis diversa. 



24. M. orthacantha (sp; n.), fruticosa, ramosa, glaberrima 

 V. superne minute puberula, aculeis infrastipularibus solitariis 

 ternisve rectis erecto-patentibus, pinnis petiolo longioribus, 



foliolis 8 10-jugis oblique cuneato-oblongis linearibusve ob- 



tusis uninerviis immarginatis nudis, capitulis globosis glaber- 

 limis, bracteolis corolla niulto brevioribus, calyce minuto.— 



