﻿Supplements to the Enumeratio Plantarum 

 Formosanarum.* 



by 

 B. HAYATA 



Assistant in the Botanical Institute, Science College, 

 Imperial University, Tokyo. 



In the Journal of the Science College, Imperial University of Tokyo, 

 in conjunction with Prof. J. Matsumura, I wrote a volume about the 

 Formosan flora, entitled " Enumeratio Plantarum Formosanarum^ '; basing 

 it upon the following materials : 1) Herbarium in the Science College ; 2). 

 Collections by the Rev. U. Faurie ; 3) Herbarium in the Sapporo Agricultural 

 College ; 4) Collections by the Formosan Government. In the work, we 

 endeavoured to include all the species which were accessible to us. Nor 

 did we omit to mention any plant recorded in the literature up to this 

 date. Localities, collectors, dates were recorded and new species, some 

 twenty or more, with their descriptions and figures, were given there. On 

 the whole, no less than two thousand species have been thus enumerated. 

 An Alphabetical index of the species alluded to, included as well as ex- 

 cluded, was added. Further, a map was annexed to the volume, and the 

 routes of the different collectors were shown in order to make it easy to 

 find the actual positions of the localities. Thus, generally speaking, the 

 work is, in itself, technically complete. 



I spoke above of two thousand species ; but can that number give even 

 a rough idea of the flora of the island ? No, I think not. When we 

 consider that abundant vegetation which it possesses ; the fertility of the soil 

 endowed by the tropical climate ; the extreme variety of the island, extend- 

 ing from tropical to subtropical, dryness in one place, wet in another, low- 

 lands round the exterior, but lofty mountains in the interior, each having 

 its own pecuriality ; and the beautiful flora thus caused, we are led to im- 

 agine how vastly numerous it must be. Two thousand species would be a 

 sufficient number to express a local flora, had it been in a temperate and 

 unvaried island. But in Formosa, assuredly not ; that figure is far less than 

 the actual number than must exist in that island. In this sense, our 



• * Journal of Science College, Imperial University of Tokyo, Vol. XXII. 



