2 ART. i — Y. Y ABE : 



MuxiiiKJwicz, Fninchet and others. Franchet and Savatier's elaborate 

 " Enumeratio Plantarum" appeared in the years 1875 — 1879, in which 

 24 o-enera and 52 species of the umbel] iferae were incorporated. 



At present, the total number of the species known amounts to 

 about 40 genera and 95 species. Amongst these genera, four are 

 restricted to northern America and Asia, viz. Cœlopleurum, Conio- 

 selinum, Osmorhiza and Phellopterus ; three, to northern Asia and 

 European Russia, viz. Pleurospermum, Nothosmyrnium and Cenolo 

 phi urn. 



The three genera, Cicuta, Heracleum and Ligusticum are widely 

 distributed only in the Northern Hemisphere ; whilst one genus, 

 Seseli, has relatively a wide distribution in the Eastern Hemisphere, 

 not being found in North America. The remaining genera are 

 almost cosmopolitan. Out of these 96 species, only twenty -eight are 

 endemics ; twelve are introduced ; four, nowhere to be found in our 

 country, must be excluded, having been erroneously recorded as 

 Japanese by the previous botanists. 



For the distribution of the species over this country and their 

 relation to the flora of other countries, two tabular lists are given at 

 the end of this paper. 



In this paper, I have attempted to classify all the umbelliferœ 

 which are accessible to me, from Japan, Liukiu and Formosa, describ- 

 ing them from the materials principally preserved in the herbarium of 

 the Botanical Institute, Science College, Imperial University, Tokyo. 

 The generic characters are üfiven only in such a limited sense as are 

 applicable to our flora, and are arranged according to Frof. Drude.* 



In conclusion I desire to express my hearty thanks to Prof. J. 

 Matsumura, at whose suggestion this investigation was undertaken, and 



* Enfler u. Praatl, Nat. Pflanzenfam. III. aht. VITT. 



