286 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.55. 



the genus Juania of the Island of Juan Fernandez, are more par- 

 ticularly confined to the Colombian and Ecuadorian Andean valleys 

 and the region of the headwaters of the Amazon. 



Engelhardt ^ has described some fragments of a feather palm from 

 beds in the Cauca Valley in Colombia that I regard as of approxi- 

 mately the same age as the Tumbez deposits as Palmacites, but these 

 are so fragmentary that adequate comparisons with them are im- 

 possible. 



Eolotype.— Cat. No. 35329, U.S.N.M. 



Order ARALES. 



Family ARACEAE. 



Subfamily Monsteroideae. 



Genus STENOSPERMATION Schott. 



STENOSPERMATION COLUMBiENSE, Engeihardt(?) 



Stenospermatioii coluiiibiense Engelhardt, Abh. Seuck. Natiu'f. Ge.sell., vol. 

 19, p. 26, pi. 5, fig. 2, 1S95. 



This species was based upon rather characteristic fragments of 

 large, elliptical-lanceolate, leathery leaves with a very stout midrib 

 and petiole and with a typical araceous venation. These were com- 

 pared by Engelhardt with the leaves of the existing Peruvian species 

 Stenospermaiion matfh&wsii Schott and S. povipayejise Schott, as 

 well as with the leaves in the genus Aspidistra. 



The material from the locality south of Tumbez is less complete 

 than the type material which came from Santa Ana, on the western 

 margin of the Kio Magdalena Valley in Colombia, hence the Peruvian 

 occurrence is queried, althoug^i in so far as the material goes it is 

 identical wath the type. 



The genus Stenospermation, not otherwise known in the fossil 

 state, comprises four or five existing species of the humid regions in 

 the sub- Andean Tropics. It is closely related to the genus Monster a., 

 whose pinnately divided leaves are familiar in our greenhouses. 



Order POALES. 

 Family POACEAE. 



Genus BAMBUSIUM Uisger. 



BAMBUSIUM STUBELI, Er.gelhardt(?) 



Banibimum stiiheli Enghltiardt, Abh. Senok. Nraurf. Gesell., vol. 19. p. 

 24, pi. 5, figs. 4, 5, 1895. 

 This species was based upon stems of a large grass of uncertain 

 generic identity, described by Engelhardt from the Santa Ana lo- 



1 Engelhardt, H., Abh. Senck. Naturf. Gesell., vol. 19, p. 40, pi. 4, flg. 8, 1895. 



