art.19. MIOCENE PLANTS FROM SOUTHERN MEXICO—BERRY. - 138 
evenly rounded. Texture subcoriaceous. Length about 7.5 to 8 
cm. Maximum width about 3 cm. or slightly more. Petiolule not 
preserved. Midrib stout. Secondaries very thin, numerous, as- 
cending, camptodrome. ‘Tertiaries obsolete. 
Insome of its features this form suggests such alauraceous genus 
as Mespilodaphne but the secondaries are more numerous and much 
less prominent and the character of their endings is leguminous and 
~not lauraceous. Among the great variety of the former alliance the 
present species appears to resemble the genus Dzoclea more closely 
than any of the others. This genus consists of about 20 existing spe- 
cies of high climbing shrubs, mostly South American, but represented 
in Central America. The only previously described fossil species 
known to me isa broader ovate one from the Aquitanian of Carniola.'® 
The genus is still sparingly represented in the oriental tropics. 
Occurrence.—Isthmian railroad 2 km. north of Palomares on the 
Saravia estate, State of Oaxaca. 
Holotype.—Cat. No. 36822, U.S. N. M. 
LEGUMINOSAE INCERTAE. 
Genus LEGUMINOSITES Bowerbank. 
LEGUMINOSITES MEXICANUS, new species. 
Plate 4, fig. 1. 
Leaflets short petiolulate; ovate and inequilateral in outline; 
widest below the middle, narrowing upward to a short angular tip; 
wide and rounded at the ease. Margins entire. Texture coriaceous. 
Length about 3.25 cm. Maximum width about 2.5 cm. Petiolule 
short, stout and curved, expanded proximad, 2 mm. or less in length. 
Midrib stout, prominent on the under side of the leaflet, becoming 
thin distad. Secondaries thin but well marked; eight or nine pairs 
diverge from the midrib at wide angles, pursue rather straight outward 
courses, and are camptodrome. Tertiaries obsolete because of the 
alteration of the leaf substance since burial to a carbonaceous film 
which slacked in drying. 
This appears to me to represent a leguminous leaflet, and the fol- 
lowing genera in which certain of the species have very similar 
leaflets may be enumerated: Cassia, Dalbergia, Erythrina, Leptolobum, 
Machaerium, Pithecolobium, and Pterocarpus. I have no doubt that 
the fossil represents one of these genera and with better preserved and 
more abundant material it might be possible to reach a decision. If 
a guess were permitted I would say it represented either a Dalbergia 
or an Erythrina, meanwhile it is referred to the form-genus Legumi- 
nosites. 
18 Ettingshausen, C. von, Foss. Fl. von Sagor, pt. 2, p. 46, pl. 19, figs. 6-8, 1877. 
