122 STUDIES IN GEOLOGY, No. 4 



and much to the southward in this Chilean occurrence. 

 These facts are shown on the accompanying sketch map 

 (Fig. 5). Another fossil species from South America was 

 recorded by Krasser 30 from the Pliocene of Bahia, Brazil. 



Coniferophyta 



Order ARAUCARIALES 



Family ARAUCARIACE^E 



Genus ARAUCARIA Jussieu 

 Araucaria arauccensis Berry, sp. nov. 



PLATE III Figs 1-4 



Sequoia spp., Engelhardt, Abh. Naturw. Gesell. Isis in Dresden, 

 Heft 2, p. 69, pi. i, figs. 2-8, 1905 (not fig. 3). 



Description. Terminal leafy twigs. Leaves flat, unkeeled, 

 ovate lanceolate and inequilateral in outline, ranging in length 

 from 6 mm. to 15 mm., and in maximum width, from 2.5 

 mm. to 5 mm., sharply but not cuspidately pointed, narrow- 

 ing to the sharply reflexed and somewhat expanded decur- 

 rently sheathing base. The leaves are not crowded on the 

 twigs and the decurrent bases are long. While the arrange- 

 ment is clearly seen to be spiral the habit is distichous and 

 the twigs are distinctly bifacial. The leaf substance is thick 

 and coriaceous and the veins are numerous simple and par- 

 allel and immersed in the leaf substance, which is transformed 

 in the fossils to a lignitic sheet. 



This, in all of its characters, is obviously a species of 

 Araucaria of the Columbea section of that genus, differing 

 from the modern forms in the somewhat smaller size and less 

 crowded arrangement of the leaves. It appears that Engel- 

 hardt had received specimens from Curanilahue of this 

 species which he failed to recognize, referring them to 

 Sequoia and figuring them with a midrib or midrib-like keel. 

 I am sure that these specimens are the same as mine, the 

 parallel veins being obscure in the thick lignified leaves. 



30 Krasser, F., Sitz. k. Akad. Wiss. Wien, Bd. 112, ab. i, p. 853, 

 1903. 



