TERTIARY FLORA OF CHILE 123 



It is of considerable interest to find that Araucaria was 

 abundantly represented in the Tertiary deposits of Chile in a 

 region adjoining that in which it still makes one of its great- 

 est existing displays. It is also of interest to see that in the 

 Tertiary flora of Chile it is associated with palms and cycads 

 and a variety of other plants of warmer latitudes and not 

 present in recent times in or near the Araucarian forests. 

 Nor has their modern compatriot, the evergreen beech 

 (Nothofagus) been found in the coal measures of Coronel, 

 Lota and Curanilahue, although still farther to the southward 

 Dusen has described both genera from what are probably 

 somewhat older deposits. Quite different species from this 

 general region are Araucaria nathorsti Dusen 31 from Punta 

 Arenas, Chile and Araucaria imponens Dusen 32 from Sey- 

 mour Island, Graham Land, and furthermore Gothan has 

 described 33 the wood of an Upper Cretaceous or Tertiary 

 species from Seymour Island as Araucaria pseudoparcnchy- 

 matosum. 



The present fossil species comes from Curanilhue and 

 Lota. The past and present geographical distribution is 

 summarized on the maps forming Figs, i to 4. 



Angiospermophyta 



Order ROSALES 



Family C/ESALPINIACE^ 



Genus CASSIA Linne 

 Cassia longifolia Engelhardt 



PLATE V Figs. 2, 3 



Cassia longifolia Engelhardt, Abh. Senck. Naturf. Gesell. Bd. 19, 

 pp. 19, 24, pi. 2, figs. 14-16, 1895. 



Description. Leaflets sessile, somewhat variable in size, 

 oblong elliptical and somewhat inequilateral in outline. Apex 



31 Dusen, P., Svenska Exped. till Magellanslanderna, Bd. i, p. 105, 

 pi. 12, figs. 1-13, 1899. 



33 Dusen, P., Wiss. ergeb. Schw. Siidpolar-Exped. 1901-1903, Bd. 3, 

 Lief 3, p. n, pi. i, figs. 16, 17, 1908. 



33 Gothan, W., Idem., Lief 8. p. 10, pi. i, figs. 1-3, 12-16, 1908. 



