Fink : Distribution of Fungi in Porto Rico 



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specimen was seen. However, rocks, bark, and wood were plas- 

 tered over with crustose, usually inconspicuous forms. Indeed, 

 the largest collection of fungi secured in a single day was 105 

 specimens obtained the first day in the desert south of Yauco. 

 This collection will prove of special value for the large number 

 of Graphidaceae and Arthoniaceae taken. No fleshy discomycetes 

 were seen in the desert. No fungi were seen on the leaves, except 

 possibly an occasional rust or an imperfect fungus, though fungi 

 of various kinds abound on leaves in other parts of the island. 

 No myxomycetes were seen south of Yauco, while these plants 

 are common north of the city. The change in fungous flora in 

 passing one mile or at most two miles northward from Yauco 

 is most astonishing. The remarkable accompanying change in 

 seed-plant flora is quite as interesting, but this lies outside the 

 limits of this paper. 



The collection has not been studied sufficiently to permit a 

 more detailed statement regarding distribution ; but the general 

 account given above will, it is hoped, prove interesting and valu- 

 able. The great interest and value that would result from floristic 

 and ecologic studies of the fungous flora of the island as a whole, 

 and extending over many years, were distinctly realized during 

 my short sojourn there. Much of great interest and value to the 

 botanist and to the agriculturist and the horticulturist as well 

 would result from such a detailed study of the fungous flora of 

 Porto Rico. 



Miami University, Oxford, 



Chio. 



