BENTHAM ON MIMOSE^. 34') 



is nearer in character to Adenanthera^ but the habit and the 

 pod appear to me sufficient to warrant its being considered 

 as a distinct genus. I have only seen it in flower. 



X. Tetrapleura. Gen. Nov. 



Flos pedicellatus Adenantherce. Legumen " obtusum 

 compressum, margine aculeum, lighosum ; locuh's transversis 

 remotis monospermis; medio per totam longitudinem utrin-^ 

 que latere auctum crista subcarnoso-dura pericarpio conformi 

 eoque fere crassiore, margine obtusa, quo pericarpium quad- 

 rialatumprimoadspectu mentitur. Semina ovata, compressa, 

 alteri suturae affixa, magnitudine seminis Tamarindi." 

 (Thonning,) — Arbor alta. Folia opposita, bipinnata, pinnis 

 foliolisque multijugis, floribus spicatis. — Species unica. _P. 

 Tlionrdngii. — Adenanthera fetraptera, Schum. Beskr. PI. 

 Gain. 213. — Near Aquapim in tropical Africa. 



The above chai'acter is taken entirely from Thonning's 

 description in Schumacher's work above quoted. I have not 

 seen the plant, but Sir W. J. Hooker has received a pod from 

 tropical Africa, answering to the above description. It is 

 transversely, multilocular, like those of Striiphnodendron, 

 Gagnebina, and Prosopis ; but the four woody thick wings, 

 or rather ribs, give it so peculiar a form as not to admit of 

 its being united with either of those genera, unless the whole 

 be considered as forming but one. 



XI. Gagnebina. Neclc. 



Flos Entadtr, sessilis. Legumen oblongo-lineare, com- 

 pressum, indehiscens, margine ex utraque sutura membra- 

 naceo-alatum, intus transverse multiloculare, epulposum. 

 Semina transversa, funiculo filiformi appensa. — x\rbor iner- 

 niis. Folia bipinnata, pinnis foliolisque (parvis) multijugis. 

 Flores parvi spicati. — Species unica, G. tamarisciiu/, DC. 

 Prodr. v. ii. p. 438. (^Mimosa tamariscinay Lam.) ; a qua non 

 differt, G. axillaHs, DC. 1. c. {M. pterocarpa, Lam.) — 

 Mauritius. Boutan, Bojer, Sieher, Telfair, Neraud, d'c. 



Lamarck appears to have described his M, tamarischut^ 



Vol. IV No. 31. 2x 



