344 PROCEEDINGS OF THE NATIONAL MUSEUM vol.83 



the limits of a single generic concept. Witness Diel's impossible 

 treatment of them under Nephrodium in Die Pflanzenfamilien. 



Occurrence. — Betijoque, District of Betijoqiie, State of Trujillo. 

 U.S.N.M. no. 39283. 



Phylum CYCADOPHYTA 



Order Cycadales 



Family CYCADACEAE 



Genus ZAMIA Linnaeus 



ZAMIA ( ?) species 



What appears to be a fragment of a pinnule of Zamia is found in 

 the collection from Betijoque in the State of Trujillo. The genus 

 has been detected at a number of localities in the American Tertiary 

 in recent years, and although the present specimen is "wholly inade- 

 quate for purposes of characterization or comparison it probably 

 indicates the presence of this type of plant. 



Phylum ANGIOSPERMOPHYTA 



Class MONOCOTYLEDONAE 



Order Arecales 



Family ARECACEAE 



Genus PALMOPHYLLUM Conwentz 



PALMOPHYLLUM species 



Fragments of palm rays are not uncommon in the Tertiary floras 

 of equatorial America, but they are usually too incomplete for gen- 

 eric determination, as is the case with those found in the Venezuelan 

 Miocene. 



Occurrence. — Palmarejo, District of Mara, State of Zulia; El 

 Mene, District of Acosta, State of Falcon; Betijoque, District of 

 Betijoque, State of Trujillo. 



Order Poales 



Family POACEAE 



Genus POACITES Brongniart 



POACITES species 



Fragments of a large grass too incomplete for identification and 

 therefore referred to the form genus Poacites.^ but probably a species 



