132 STUDIES IN GEOLOGY, No. 4 



existing species of Camphoromoea. It is also similar to the 

 fossil forms of the Northern Hemisphere which paleobot- 

 anists invariably refer to the allied genus Cinnamomum, 

 which in the existing flora is confined to the Old World. It 

 is also very similar to several existing species of Gceppertia. 

 particularly Goeppertia sericea Nees. 



I regard the present species, as well as the two additional 

 species recorded from Chile as undoubtedly representing the 

 genus Gceppertia. Whether or not some of the North Amer- 

 ican forms described as Cinnamomum should be referred to 

 Goeppertia and Camphoromoea I am not able to determine. 

 It would seem that these genera should have reached North 

 America along with the numerous Central and South Amer- 

 ican Lauraceous types during the Tertiary. On the other 

 hand the identity of Cinnamomum' seems to be firmly estab- 

 lished in some cases and it may be that the latter represents 

 the original cosmopolitan type from which these other genera 

 diverge in the South American region. Systematists do 

 not recognize any such relationships but the Lauracese are 

 notably difficult and it may be doubted if the last work has 

 been said upon this subject, certainly the treatment of the 

 family by Pax in Engler and Prantl is about as unsatis- 

 factory as can well be imagined. 



Genus LAUROPHYLLUM Gceppert 

 Laurophyllum actinodaphnoides Engelhardt 



Laurophyllum actinodaphnoides Engelhardt, Abh. Senck. Naturf. 

 Gesell. Bd. 16, heft 4, p. 654, pi. 4, figs. 3, 4, 1891. 



The present collections show that these leaves had a stout 

 petiole, 1.5 cm. in length. 



Order MYRTALES 



Genus MYRCIA De Candolle 



Myrcia reticulato-venosa Engelhardt 



Myrcia reticulato-venosa Engelhardt, Abh. Senck. Naturf. Gesell. 

 Bd. 1 6, heft. 4, p. 680, pi. 8, fig. i, 1891. 



The present collection shows that these leaves reached 

 dimensions of 12 cm. in length by 2 cm. in maximum width. 



