Some Ferns from the Mountainous Regions 



of Formosa. 



By 

 B. Hayata 



Lecturer in Botany in the College 

 ot Science, Imperial University of Tokyo. 



In March of the present year, I wrote a paper entitled 

 "Flora Montana Formosa^ 1 - 1 " where I have given some few ferns 

 which were determined previously. Since that time, I have had 

 many collections of ferns from the mountainous districts of the 

 island. The following accounts are given as the result of the 

 study of the materials which were not written in the paper 

 above mentioned. 



The species, which were previously recorded in the Enume- 

 ratio Plantarum Formosanarum 2) , or in the Flora Montana 

 Formosa, are given here -without reference. Some species 

 which are new to the Formosan flora are mentioned with full 

 references. The ferns here given are all seventy five species ; 

 some are recorded previously from the island, others are 

 new to the Formosan flora, and a few are found to be new 

 to science. Among the species which are new to the island, the 

 following five species are worthy mentioning particularlj- on 

 account of their beautiful and well defined forms. They are 

 Acrophorus stipellatus Moore, Monachosorum subgiditatum 

 Kuhn, Polypodium cucullatum Nees, and Davallia Clarkei 

 Baker. The former two genera are especially interesting, for 

 the genera themselves are not only new to the Formosan 

 flora, but also to the Japanese flora. Monachosorum is 

 worthy of special attention, for it bears some resemblance to 



J) IIayata, B. — Flora Montana Formosa;, in the Journal of the college of Science 

 Imperial University of Tokyo, Vol. XXV. Art, XIX, 270 pages, with 41 plates. 



2 > Matkumura, J. et Hayata, B. — Enumeratio Plantarum Formosanarum, in the 

 Journal of the college of Science, Imperial University of Tokyo, Vol. XX II, 700 

 pages, with 18 plates. 



