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White and Hollick have found them at Martha’s Vineyard 
and they are known from the Atane and Patoot beds where 
Heer differentiates Dammara borealis,* D. macrosperma, and 
D. microlepis as well as very similar remains which he de- 
scribes as Hucalyptus Getnitzi?. These latter remains New- 
berry considers are generically the same as those referred to 
Dammara and not related to HLucalyptus. However this 
may be, undoubted leaf-remains of Aucalyptus have been 
found in these various American Cretaceous strata and it 
does not seem unreasonable that the fruit should also be 
present. It is quite true that various leaves have been re- 
ferred to Hucalyptus upon rather doubtful evidence, but 
others from both their form and venation, are unquestionably 
related to that genus. 
The Cliffwood remains are exceedingly common; often 
fragmentary, however, sometimes only a portion of the resin 
ducts being preserved; they are very fragile and crumble 
readily upon handling. They vary considerably in size, 
some being as small as Dammara borealis and others being 
larger than those figured by Hollick from this formation. 
Fl. 48, f. ro is strikingly like the forms which Heer con- 
siders Hucalyptus, but the balance of our collections are 
evidently coniferous scales, consisting internally of a rather 
central resin-duct enlarged above, with four or five angular 
resin-ducts on each side, which seem to descend to the base 
of the scale; externally the scales seem to be more rounded 
and finely lined as in f. ro. 
Our remains are almost exactly kite-shaped and many of 
them seem to have straight ascending sides and are not 
abruptly narrowed from above the middle as in Hollick’s 
specimens (I.c.). Neither is there any evidence of the short 
mucronate point on the crown; on the contrary f. zo is evenly 
rounded. At the same time it seems best to refer our remains 
to Hollick’s species, at least until we can be more certain as 
to the exact affinity of all these Dammara-like remains. 
Newberry (/. c.) doubts their relation to Dammara, point- 
* This species has been recorded from the Cenomanian of Bohemia. 
