1915] BERRY—MYRTACEAE 489 
eocene forms that have been referred to Eucalyptus. The oligocene 
records are all European and the miocene records include both 
Europe and Asia. 
The genus Myrtus L. has about 24 fossil species, all European, 
the majority being almost equally divided between the Oligocene 
and the Miocene. The oldest forms are early eocene, but the 
form-genus Myrtophyllum Heer has several upper cretaceous 
species in Europe, America, and Australia, as well as tertiary 
species in Europe, Asia, and South America. 
The genus M yrcia DC., so well represented in the Lower Eocene 
(Wi1cox) of our southern states, has species in the Middle Eocene 
(Claiborne) of the Mississippi embayment area, in the Oligocene 
(Vicksburg) of Louisiana, and in the European Oligocene. There 
are four species in the early Tertiary (Eocene or Oligocene) of 
Chile, one in the Tertiary of Ecuador, and one in the Pliocene of 
Brazil. 
The genus Eugenia Linn., also prominent in our lower eocene 
flora, has its oldest known species in the Dakota sandstone (Upper 
Cretaceous) of the Rocky Mountain area. It is represented in 
Europe throughout the Tertiary from the Lower Eocene to the 
Pliocene, and is recorded by ENGELHARDT from the Tertiary of 
Ecuador. 
The genus Myrciaria Berg, often included in Eugenia, has 
about 60 existing species, all American, and found in the area 
extending from the West Indies to Brazil and Peru. It is repre- 
sented, according to ENGELHARDT, in the Tertiary of Ecuador. 
The genus Callistemon R. Brown has been identified in both 
the Upper Cretaceous and the Tertiary of Europe, and no less than 
25 fossil species have been referred to the genus Callistemophyllum 
Ettingshausen. These include upper cretaceous forms in both 
America and Europe; eocene or oligocene forms in Greenland; 
and numerous oligocene and miocene species in Europe and 
Australia. 
The genus Metrosideros Banks, with an existing species in South 
Africa, another in the Sunda Islands, and 18 or 20 species in 
Australia or Polynesia, has 8 or 10 fossil species. The oldest, 
probably an erroneous identification, is recorded from the Atane 
