26 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. 62. 
similar in appearance, but not exactly identical with the Tehuantepec 
fossil. 
Occurrence.—Isthmian railroad ? km. north of Palomares on the 
Saravia estate, State of Oaxaca. 
Holotype.—Cat. No. 36841, U.S.N.M. 
Order RUBIALES. 
Family RUBIACEAE. 
Genus RONDELETIA Plumier. 
RONDELETIA, (7?) species. 
Plate 7, fig. 3. 
This fragment scarcely warrants an attempt at a diagnosis or a 
specific name. It is distinct, however, from the other elements in 
the Tehuantepec Miocene flora, and its numerous, straight, parallel, 
ascending secondaries, and peculiar tertiary venation make it easy 
to recognize and suggest that it represent a fossil species of the 
genus Rondeletia. 
This genus comprises about 60 existing species of shrubs and trees, 
confined to the American Tropics, and largely represented in the 
Antilles with about 35 species, and in Central America with about 
25 species. It is sparingly represented in northern South America. 
The only known fossil species known to me is one found in the Gatun 
formation of Panama.*® 
Occurrence.—Isthmian railroad 3 km. north of Palomares on the 
Saravia estate, State of Oaxaca. 
Cat. No. 36842, U.S. N. M. 
Genus GUETTARDA Endlicher. 
GUETTARDA COOKEI Berry (?). 
Guettarda cookei BERRY, Proc. U.S. Nat. Mus., vol. 59, p. 125, pl. 21, figs. 5, 6, 1921. 
Fragmentary specimens representing the genus Guettarda are 
tentatively referred to this species which was described recently from 
the Miocene of the Dominican Republic. The genus contains about 
50 existing species found chiefly in tropical America, and the present 
fossil species appears to be most like the existing Guettarda elliptica 
Swartz of the Antilles. 
Occurrence.—Isthmian railroad three-fourths kilometer north of 
Palomares on the Saravia estate, State of Oaxaca. 
Cat. No. 36843, U.S. N. M. 
% Berry, E. W., U.S. Nat. Mus. Bull. 103, p. 42, pl. 18, fig. 3, 1918. 
