922 NOTES ON MIMOSEÆ. 
branaceæ, in ramulis decidue v. obsolete. Pinne et foliola, 
plurijuga v. sepius multijuga. Glandula prope basin petioli, 
et jugales inter pinnas v. foliola suprema. Pedunculi axil- 
lares, solitarii v. gemini. Capitula subglobosa. Flores ses- 
siles, tubulosi, glaberrimi, v. vix ciliis paucis ad orem caly- 
cis. Ovarium sessile, glabrum. Legumen crasso-compres- 
sum, faleatum, valvulis coriaceo-carnosis, intus transverse 
septatum. Semina exarillata. Species Americana. 
Even without the spines, the small light-green folioles, 
and the smooth, almost shining slender flowers, give a pecu- 
liar habit to the species of this section, of which the essential 
character appears to reside in the thick fleshy pod. The 
spines, when present, appear to be formed of abortive pe- 
duncles. 
69. P. tortum (Mart. Herb. Fl. Bras. p. 114), glaberrimum, 
pinnis 3-4-jugis, foliolis 5-9-jugis oblique obovato-oblongis 
plurinerviis, calyce truncato ore nudo corolla ter breviore. 
— Frutex biorgyalis, ramulis flexuosis. Foliola 4-6 lin. longa. 
Corolle 3 lin. longe, graciles, in capitulo numerose.—Dry 
hot situations in the province of Bahia, Martius, Sello. 
70. P. Vincentis (sp. n.), ramulis glabriusculis, petiolis pu- 
berulis, pinnis 3-4-jugis, foliolis 5-9-jugis oblique oblongis 
plurinerviis supra glabris subtus piloso-pubescentibus, calyce 
4-5-dentato ore nudo corolla dimidio breviore.—P. torto 
valde affine, et forte varietas. Foliola paullo minora, subtus 
constanter villosula. Flores paullo minores, ealycibus propor- 
tione longioribus, Isle of St. Vincent's, Guilding. 
71. P. fenuiflorum (sp. n.), ramulis petiolisque velutino- 
pubescentibus, pinnis 3-4-jugis, foliolis 5-9-jugis oblique ob- 
longis plurinerviis utrinque piloso-pubescentibus, calyce mi- 
nute dentato apice pilosulo corolla glabra triplo breviore.— 
Hec etiam species vix nisi villositate a P. torto differt. Fo- 
liola parum angustiora. Flores tenuiores.— Brazil, Pohl; near 
Jaquara, Langsdorff. 
72. P. Mathewsi (sp. n., ramulis petiolisque pubescenti- 
bus, pinnis 5-8-jugis, foliolis 15-20-jugis oblique oblongis 
vix trinerviis supra glabris subtus pubescentibus, calyce trun- 
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