of plant sources of the resin, however, because of the 
availability of correlative botanical information. 
Three types of moors have been recognized in recent 
attempts to reconstruct the vegetation types that pro- 
duced the German brown coals (Thomson, 1951; Teich- 
muller, 1958). One is the Reidmoor (marsh), similar to 
that existing inthe Everglades of Florida today. Another 
is the Nyssa-Taxvodium swamp woods compared with 
those presently found in the Mississippi Delta, Florida, 
Georgia and North Carolina. Several reports of taxodia- 
ceous resin from the Rhine brown coals have been re- 
ported, and the derivation has been substantiated by 
wood associated with it (Jurasky, 1981; Tschirch and 
Stock, 1936). A third type is described by Teichmuller 
as a Myrica-Cyrilla moor accompanied by Sequoia woods. 
The Myrica-Cyrilla moor has produced more peat in the 
lower Rhine brown coals than any other vegetation type. 
Here Liquidambar played a significant role. Seigburgite 
from these coals has been considered by Klinger and 
Pitschi (1884) to be derived from Liquidambar, because 
it produced cinnamic acid and styrolene upon distillation. 
Jurasky (1931) has also reported resin from sections of 
wood referred to Juniperowylon. Relatively few state- 
ments regarding botanical derivation have been made for 
the retinites, although some of the physical and chemi- 
cal characteristics have been described. It seems possible 
that a systematic attempt to relate all relevant chemical 
and botanical information about this material might, in 
some cases, indicate the plant sources. 
Allingite from upper Oligocene deposits in Savoy is 
called Swiss amber. It appears to differ from Baltic suc- 
cinite in the presence of both sulphur and nitrogen, and 
a resin acid differing from succinic acid (Tschirch and 
Stock, 1936). The botanical source has not been discussed. 
Amber from the Dominican Republic, presumed to be 
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