PEEFACE vii 



and eighty kinds are flowering plants. Of these more 

 than one hundred and sixty-five are native species, 

 while the others have been recently introduced. 



The eighteen ferns of the hammock fall into five 

 natural families. One species, the royal-fern, is almost 

 cosmopolitan. Another species, the chain-fern, is 

 typical of the lower Atlantic coastal plain and other- 

 wise occurs only in Bermuda. The remainder of the 

 species are typically, if not strictly, tropical kinds. 

 All, except two species, are generally distributed in 

 the forest, and a few occur in luxuriance not dupli- 

 cated elsewhere in southern Florida. 



J. K. SMALL. 



THE NEW YORK BOTAXICAL GARDEN, 

 November 1, 1918. 



NOTE 



The descriptions and figures on the following pages 

 are from my "Terns of Tropical Florida," published 

 May 28, 1918. 



The habitat or habitats in southern Florida is given 

 after the description of each species. 



