MYCOLOGIA 



Vol. XIII NOVEMBER, 1921 No. 6 



A CONTRIBUTION TO OUR KNOWLEDGE 

 OF THE PYRENOMYCETES OF 

 PORTO RICO 1 



Carlos E. Chardon 



(With Plates 13-15, and Text Figures 1-4) 



The study of the fungous flora of Porto Rico has received in 

 recent years considerable attention from American mycologists. 

 -Their enthusiasm has been stimulated by the extensive collections 

 made by Stevens, Fink, Whetzel and Olive, and has led to the 

 publication of a series of papers which give us some conception of 

 the richness of the mycological flora of the island. These studies 

 are of importance, since they represent the first attempt on the 

 part of American mycologists to gain a clearer knowledge of the 

 fungi of the West Indies. A fairly complete account of the 

 Uredinales has been presented in the publications of Arthur (2, 3) 

 and Whetzel and Olive (22). but our knowledge of the pyreno- 

 mycetes is still far from perfect in spite of the numerous papers 

 which have appeared dealing with the members of this group. 



Klotzch and Sintenis seem, to have been the first botanists to 

 collect these fungi on the island and a list of their collections has 

 appeared in literature (18, 26). Heller, in 1900, collected in 

 quantity members of the group and distributed them in his Plants 

 of Porto Rico. His specimens were studied by Earle, who pub- 

 lished on them two papers (7, 8), which were the first contribu- 

 tions of importance. A number of years followed in which no 



1 Also presented to the Faculty of the Graduate School of Cornell Uni- 

 versity as a major thesis in partial fulfillment of the requirements for the 

 degree of Master of Science. 



[Mycologia for July-September (13: 201-277) was issued October 8, 1921] 



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