Vol. 33 



BULLETIN 



No 9 



OF THE 



TORREY BOTANICAL CLUB 



SEPTEMBER, 1906 



Pteridophytes observed during three excursions into southern Florida* 



Alvah Augustus Eaton 



In November and December, 1903, I discovered in southern 

 Florida several ferns new to the United States, of which a brief 

 notice was published in the Fern Bulletin for April, 1904. As 

 several species, at that time undetermined, were omitted from my 

 account, and furthermore two subsequent trips have added other 

 species new to the flora, it now seems best to bring all these little- 

 known plants together, with somewhat careful descriptions which 

 will make them the more readily distinguishable by fern students ; f 

 and, moreover, to enumerate all the fern worts discovered in the 

 course of my travels in Florida, with the hope that the notes so 

 presented will add materially to knowledge of geographical dis- 

 tribution, as well as aid future botanical explorers. It is hoped,, 

 also, that the great ecological interest of the region will be so 

 well suggested as to lead ecologists into southern Florida. Such 

 lists as the present one, if carefully prepared, should be of much 

 assistance when exact ecological surveys come to be made. Ac- 

 knowledgments are due to Mr. B. D. Gilbert, Mr. William R.. 

 Maxon and Dr. L. M. Underwood for assistance in the determina- 

 tion of specimens. 



Itinerary 



It becomes necessary to present a brief account of my itinerary. 

 I arrived at Miami on November 6, 1 903, where I met Dr. J. K. 

 Small and Mr. J. J. Carter. Making Miami our base, we imme- 



* Contributions from The Ames Botanical Laboratory, No. 4. 



f The species added to the flora of the United States are indicated by an asterisk 



[The Bulletin for August 1906 (33 : 403-454) was issued 30 Au 1906.] 



47)7) 



