(62) 



White and HoUick have found them at Martha's Vineyard 

 and they are known from the Atane and Patoot beds where 

 Heer differentiates Dammara borealis* D. macrosferma, and 

 D. microlcfis as well as very similar remains which he de- 

 scribes as Eucalyptus Geinitzi. These latter remains New- 

 berry considers are generically the same as those referred to 

 Davimara and not related to Eucalyptus. However this 

 may be, undoubted leaf-remains of Eucalyptus 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 Eucalyptus 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 Damnia?'a borealis and others being 

 larger than those figured by Hollick from this formation. 



PL 4-8^ f. 10 is strikingly like the forms which Heer con- 

 siders Eucalyptus, 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 mf. lo. 



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 (1. c). Neither is there any evidence of the short 

 mucronate point on the crown ; on the contrary y. lo 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 Da7n7nara-\\kQ. remains. 



Newberry (/. c.) doubts their relation to Dammara, point- 



*This species has been recorded from the Ceuomanian of Bohemia. 



