152 PROCEEDINGS OF THE NATIONAL MUSEUM. tol. 54. 



ing one from the Tertiary of Ecuador/ one from the late Tertiary 

 of New Jersey,^ and one from the Pleistocene of Cuba. 

 Plesiotype.—C&t. No. 35106, U.S.N.M. 



Genus PLATYPODIUM Vogel. 



PLATYPODIUM POTOSIANUM Engelhardt. 



Plate 17, figs. 15-17. 



Platypodium potosianinn Engelharpt, Sitz. Natiirw. Gesell. Isis in Dresden, 



1894, Abh. 1, p. 12, pi. 1, fig. 41. 

 Cassia cristoides Britton (not Engelhardt), Trans. Amer. Inst. Min. Eng., vol. 



21, 1903, fig. 44, (not figs. 40-43). 

 Cassia chrysocarpoides Britton (not Engelhardt), Trans. Amer. Inst. Min. Eng., 



vol. 21, 1893, fig. 87 (not figs. 29-36). 



Description. — Leaflets petiolulate, oblong elliptical to oblong- 

 obovate, with a nearly equilateral broadly rounded to very slightly 

 emargmate apex and a slightly narrowed rounded or bluntly pointed 

 considerably inequilateral base. Margms entire. Texture sub- 

 coriaceous. Length, ranging from 1.3 to 1.8 cm. Maximum width, 

 at or somewhat above the middle, ranging from 7 to 8 mm. Petio- 

 lule stout, curved, about 2 mm. in length. Midrib relatively stout 

 and prominent. Secondaries numerous, well marked, subparallel, 

 camptodrome; seven to nine pairs diverge from the -midrib at angles 

 of about 45°. Tertiaries mostly obsolete except for ascending sub- 

 ordinates between and subparallel with the secondaries. 



The present species is very close to the existing Platypodium elegans 

 Vogel, which ranges from Panama to Brazil and eastern Bolivia. 

 It resembles somewhat the smaller leaflets of Cassia cristoides Engel- 

 hardt Cassia chrysocarpoides Engelhardt and is about the same 

 size as Cassia wendtii Britton. The latter, is, however, nearly ses- 

 sile and pointed at both ends. 



The genus Platypodium is not otherwise known m the fossil state. 

 The existing species are few in number and comprise trees with even 

 or odd pinnate small leaves confined to the Southern American Tropics 

 and chiefly developed in the Amazon and Ormoco basins. 



Plesiotype.^Csit. No. 35107, U.S.N.M. 



LEGUMINOSAE INCERTAE SEDIS. 

 Genus LEGUMINOSITES Bowerbank. 



LEGUMENOSITES (?) GLOBULARIS Engelhardt. 



Leguminosites (?) globularis Engelhardt, Sitz. Naturw. Gesell. Isis in Dresden, 

 1894, Abh. 1, p. 13, pi. 1, fig. 59. 



Description. — ^A globular seed about 4 mm. in diameter, referred 

 tentatively to the Leguminosae by Engelhardt and not contamed 

 in the other collections from Potosi. 



1 Engelhardt, Abh. Senck. Naturf. Gesell., vol. 19, p. 17, 1895. 



« Ho Hick, A., Bull. Torrey Bot. Club, vol. 33, 1896, p. 49, pi. 259, figs. 6-8. 



