taceous ambers from both the Alaskan Arctic Coastal 
Plain and the Atlantic Coastal Plain appear to be from 
taxodiaceous trees. In Alaska evidence points to T'axo- 
dium or Parataxodium, and along the Atlantic Coast to 
Sequoia. In both of these cases, inferences are made from 
fossils associated in the amber-bearing beds with no sub- 
stantiation from either the nature of the resins or the in- 
clusions in them. The source of Canadian amber has not 
been discussed, apparently because of the absence of 
obvious inclusions and of other fossils from the amber- 
bearing beds. Due to lack of succinic acid and other 
physical differences, it often is assumed that these ambers 
might come from a different source than that of Baltic 
succinite. Copalite from southeastern England has been 
referred to copal, thus inferring probably a member of 
the Leguminosae. However, associated fruits and seeds 
in the London Clay flora are more indicative of members 
of the Burseraceae than of the Leguminosae. Legumo- 
copalite from West Africa is considered to have been 
produced by various species of Guibourtia (Copaifera) 
and Daniella and that from East Africa by Trachylobium 
verrucosum, all members of the Leguminosae. Amber 
from Israel appears to be derived from Pistacia, a mem- 
ber of the Anacardiaceae. 
A gathis alba, the Kauri pine, seems to be the most 
probable source of amber from Australia and at least 
some of the material from New Zealand and Java. Physi- 
cal properties of amber from Sumatra, other localities in 
Java and the Philippine Islands differ greatly from those 
of Baltic succinite. It seems probable that they are from 
members of various genera of the Dipterocarpaceae, as 
they are copious resin producers in the area today. 
It has been assumed that amber in the Dominican 
Republic is from pines, although this assumption has no 
botanical support. Amber from California has been found 
[ 278 | 
