TERTIARY FLORA OF CHILE 131 



It may perhaps be questioned whether it is possible to dif- 

 ferentiate these genera in the Tertiary, and the widest rang- 

 ing genus Cryptocarya may be considered as representing the 

 cosmopolitan ancestral stock from which the localized genera 

 of the tribes Cryptoearyese and Acrodiclidieae were derived. 

 The present fossil species was collected at Lota. 



Gceppertia ovalifolia Engelhardt 

 PLATE V Fig. 7 



Gceppertia ovalifolia Engelhardt, Abh. Senck. Naturf. Gesell, Bd. 

 1 6, Hft. 4, p. 652, pi. 3, figs. 8, Qb; pi. 4, fig. 9; pi. 5, fig. 4, 1891: 

 Idem., pi. 14, fig. 10. 



Leaves ovate in general outline, somewhat variable in both 

 form and size. Widest below the middle, tapering upward 

 to a narrow extended acuminate tip or rather abruptly and 

 bluntly pointed. Base narrowly or broadly cuneate, the nar- 

 rower forms slightly decurrent. Margins entire, somewhat 

 irregularly undulate in nearly all of the specimens collected. 

 Texture coriaceous. Length 10 cm. to 13 cm, Maximum 

 width 3.5 cm. to 5.25 cm. Petiole short and stout. Midrib 

 stout, prominent on the lower surface of the leaf. Basal 

 secondaries opposite or subopposite, stouter than the upper 

 secondaries, parallel with the lower lateral margins, invar- 

 iably suprabasilar, generally sufficiently developed to merit 

 the term lateral primaries, camptodrome at or above the 

 middle of the leaf, separated by a considerable interval from 

 the secondaries next above. Remaining secondaries 3 or 4 

 subopposite to alternate, remotely spaced, camptodrome 

 pairs. The tertiaries are mostly obsolete on the upper sur- 

 face of the leaf but fairly well defined on the lower surface ; 

 they form marginal abruptly camptodrome arches within the 

 margins and are mostly percurrent within the secondaries. 



This well marked species was described by Engelhardt 

 from abundant material from Coronel, and a single fragment 

 from Lota (op. cit. pi. 14, fig. 10) which he failed to recog- 

 nize. I found it common at Lota. It greatly resembles 

 Camphoromoca spcciosa Engelhardt from Coronel, as well as 



