art. 19. MIOCENE PLANTS FROM SOUTHERN MEXICO—BERRY. 19 
NECTANDRA AREOLATA Engelhardt. 
Plate 4, fig. 3. 
Nectandra areolata ENGELHARDT, Abh. Senck. Naturf. Gesell., vol. 19, p. 29, 
pl. 6, figs. 1, 2, 1895.—Brrry, Proc. U. 8. Nat. Mus., vol. 59, p. 177, pl. 27, 
1921. 
Leaves of large size, elliptical acute in general outline, widest 
in the middle and equally pointed at both ends. Margins entire 
slightly undulate. Texture coriaceous. Length about 18 cm. 
Maximum width about 7.5 cm. Petiole short and stout, about 1 
cm. in length. Midrib stout, prominent on the under side of the 
leaf. Secondaries stout proximad, becoming thin distad, prominent 
on the lower surface of the leaf; 8 to 10 somewhat irregularly spaced 
pairs diverge from the midrib at angles of 45° or more, and curve 
regularly upward, ending in camptodrome arches along the margins. 
Tertiaries well marked, percurrent. Areolation open, polygonal. 
This species was described by Engelhardt from the Miocene of 
Santa Ana, Colombia, and compared with the existing Nectandra 
gardnert Meissner. It was based upon rather imperfect material, 
but more complete specimens were subsequently described by the 
present writer from the Miocene of Costa Rica. It is common in 
the Tehuantepec Miocene and tends to strengthen the conviction 
that the Colombia, Costa Rica, and south Mexican beds are very 
similar in age. 
Occurrence.—Isthmian railroad 2? km. north of Palomares on the 
Saravia estate, State of Oaxaca. 
Plesiotype.— Cat. No. 36831, U. S. N. M. 
Genus MESPILODAPHNE Nees. 
MESPILODAPHNE PALOMARESENSIS, new species. 
Plate 1, fig. 1. 
Symmetrical ovate-lanceolate leaves of small to medium size, 
widest medianly and about equally acuminate at the apex and base; 
with evenly curved, entire margins; and subcoriaceous texture. 
Length about 7 cm. Maximum width about 2.75cm. Petiole stout, 
presumably long, but preserved for only a short distance. Midrib 
stout, prominent, straight. Secondaries mediumly stout, regularly 
spaced, subparallel and camptodrome; about seven subopposite pairs 
diverge from the midrib at angles of about 55° or 60°, curving 
regularly upward. The areolation is indistinctly preserved. 
Among previously described fossil forms this species falls naturally 
in the group which includes Mespilodaphne pseudoglauca Berry and 
Mespilodaphne coushatta Berry of the lower Eocene of southeastern 
North America”. It is quite possible that this Miocene species 
2 Berry, E. W., U.S. Geol. Survey Prof. Paper 91, pp. 306, 307, pl. 80, figs. 4, 6; pl. 87, fig. 3, 1916. 
