COROCORO COPPER DISTRICT OF BOLIVIA 91 



species, but found also in Africa, Asia, Australia, and New 

 Zealand. All of these are much alike and the fossil might 

 be successfully compared with almost any one of them. 

 Podocarpits is not found at the present time west of the 

 divide of the Eastern Andes, but is represented by two or 

 more species in the forests of the eastern slopes, the so- 

 called Ceja region of Herzog. In northern Peru it is also 

 found in the lateral valleys inside the front range, the most 

 widespread form being Podocarpus oleifolius, a shrubby 

 or arborescent form, which in latitude 6 reaches altitudes 

 up to 3,300 meters on the eastern slopes of the central 

 Cordillera and occurs in the broken ranges of Bolivia be- 

 tween Sucre and Cochabamba. 



Order POLYGON ALES 



Family POLYGONACE^E 

 Genus Ruprechtia C. A. MEYER 

 Ruprechtia braunii ENGELHARDT 



Ruprechtia braunii Engelhardt, Sitz. Naturw. Gesell. Isis in 

 Dresden, 1894, Abh. i, p. 6, pi. i, fig. 19. 



Berry, Pro. U. S. Natl. Mus., vol. 54, p. 125, pi. 15, fig. 8, 1917. 



Description. Leaves linear lanceolate in outline. Apex 

 gradually narrowed, acuminate. Base acuminate, inequi- 

 lateral. Margins entire, more or less undulate. Texture 

 coriaceous. Length, about 6.25 cm. Maximum width, at 

 or below the middle, about 9 mm. Petiole not preserved. 

 Midrib thin but prominent on the lower surface of the 

 leaf, inclined to be flexuous. Secondaries numerous, thin 

 but prominent, ascending, somewhat irregularly spaced ; 

 they diverge from the midrib at angles of about 40 and 

 are camprodrome. 



The present species may be compared with the leaves of 

 the existing Triplaris salicifolia of southern Brazil which 

 C. A. Meyer refers to Ruprechtia, and with Ruprechtia 

 lauri folia Martins of eastern Brazil. Ruprechtia is a genus, 



