FLORIDA LICHENS.* 

 P. H. Rolfs. 



The lichens of the following list are in the herbarium of 

 the Florida State Agricultural College at Lake City. The 

 specimens were collected and determined during the writer's 

 connection with that institution. 



About eighty per cent, of the species were collected by Mr. 

 Lovik T. Pattillo, a student in the college, who deserves 

 unusual credit for his keen discrimination as an amateur col- 

 lector and his untiring patience. The remainder of the 

 specimens were collected by Mr. A. L. Quaintance, by the 

 Sophomore classes, and by the writer. 



The material, as collected, was shipped in what might be 

 termed a rough condition to Mr. W. W. Calkins, of Chicago, 

 well known among botanists for his work on lichens. The 

 material was collected, labelled as to date, habitat, and local- 

 ity and transferred to Mr. Calkins. The task of examining 

 critically about 500 packages, each containing from one to an 

 indefinite number of species, would seem enough to drown the 

 enthusiasm of the most ardent. 



The "Lichen-Flora of Florida," f published in 1887, 

 enumerates 330 species and varieties. This list gives 48 

 species and varieties not mentioned in that paper, making 378 

 species and varieties catalogued for Florida, and the field is 

 only partially explored. 



Lichenologists interested in the species here enumerated 

 will have no difficulty in securing access to the collection for 

 study, if they desire. 



The notes, common, abundant,. rare, etc., have been fur- 

 nished by Mr. Calkins and explain themselves. 



* Presented and read by title before The Academy of Science of St. Louis, 

 February 18, 1901. 



t Eckfeldt and Calkins, Jour. Mycol. 3 : 121-126, 133-137. 1887. 



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