CHAPTER VII 

 The Planting of Our Flora 



CiTER Florida, including the Everglades, has 

 a mixed flora, consisting, for the most 

 part, of the warm temperate and the 

 tropical forms ; the latter somewhat pre- 

 dominate. There are also quite a number of 

 species which are immigrants from north of 

 latitude 40°. Then, too, as almost everywhere, 

 there is an element, always increasing, of species 

 naturalized from the Old World. These are 

 the floral tramps which follow the migration of 

 man and make themselves at home wherever the 

 climate is suitable. A few forms were developed 

 right here from species which originally migrated 

 from the American tropics, and these may prop- 

 erly be called semi-tropical. 



During the glacial period of early pleistocene 

 time a great ice cap covered the northern part of 

 America even to the Ohio and Lower Missouri 



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