iro INTRODUCTION TO PLANT GEOGRAPHY [CHAP. 



apparently still more warmth-loving floras appeared during the 

 Cretaceotis even in the continental United States, the existence at 

 that time in Greenland and other arctic regions of floras o temperate 

 or warmer type suggests that the climate was widely gemal, and again 

 probably of" comparable nature over most of the world. 



Fig. ao. 



Reconstructed Triassic la.idscape (after Heer). 



In the early part of the Cainozoic, individual species of pants 

 tended to be more widely distributed than they are today. Of the 

 first five parts of the era, making up the Tertiary, the second^ or 

 Eocene (by many considered the first that is really distinguishable), 

 affords widely distributed floras indicating still favourable conditions. 



■The Paleocene is nowadays frequently distinguished as the first, especially 



America. 



