2 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75 



information. Large collections remain to be made, and eventu- 

 ally we may expect that the present lack of information will be 

 remedied. 



The present communication enumerates 16 species, of which 11 

 are new. Six are of carpological material and 10 are based upon 

 leaves. Fifteen genera, 14 families, and 12 orders are represented. 

 Especially interesting is a fragment of a Zamia pinnule, a fruit of a 

 Lepidocaryum-\ike palm, a representative of the South American 

 bamboos, and the fruit of Theobroma (cacao). Some of the material 

 is precisely located both geographically and geologically and some is 

 not, so that no ecological or chronological comments are warranted. 



Order CYCADALES 



Family CYCADACEAE 



Genus ZAMIA Linnaeus 



ZAMIA species 



Plate 1, Figure 6 



The single fragment upon which this identification is based is 

 worthless from a specific standpoint, but of considerable interest as 

 it appears to represent a pinnule of a Zamia. It indicates a fairly 

 large, linear-lanceolate coriaceous pinnule, contracted toward the base^ 

 and with l2 or 13 stout parallel veins. The specimen comes from 

 sandstone associated with the coal at Montserrate near Bogota. 



Zamia with about 35 existing species is the dominant cycad genus 

 of the Western Hemisphere, ranging from peninsular Florida and 

 Mexico through the Antilles and Central America to eastern Bolivia 

 and northern Argentina. Tertiary species have been found from 

 latitude 36° 30' north to 41° 30' south and include 3 from the 

 lower Eocene of southeastern North America, 2 from the Tertiary of 

 Porto Rico, 1 from the Miocene of Chile, and 1 from the Oligocene 

 (?) of Patagonia. 



Order POALES 



Family POACEAE 



Tribe BAMBUSEAE 

 Genus CHUSQUEA 



CHUSQUEA ROLLOTI, new species 



Plate 2 



Large grass with relatively slender stems, large linear-lanceolate 

 leaves, and expanded rhizomal internodes. The material is abundant 

 but fragmentary and can be but incompletely described. 



The leaves are of a considerable degree of consistency, narrowed to 

 the sessile and slightly inequilateral base, with stout midveins and 

 slender parallel lateral veins; they vary in maximum width from 



