§ 1, some critical remarks. 



In Y a b e's splendid Monograph ^, also in M a t s u m u r a's ^ new 

 list of the Japanese flora, four species are enumerated as occuring 

 in Japan as follows: 



„B- f al с a tum, L. 

 B. multinervis, DC. var. minor, Ledb. 

 B. sachalinense, F. Schmidt. 

 B. triradiatum, A dans. var. alpin um, Rupr." 

 Let us see in particular the conception of these species by Japa- 

 nese authors. 



„B- falcatum, L," 



B. falcatum, L. of the modern bupleurography is a species 

 collectiva, containing a great number of geographical races, 

 each of wich is connected with one or many others by the inter- 

 mediary forms. Therefore to say, as many people do, that in Ja- 

 pan can be found „B. falcatum" is equal to say nothing. In 

 spite of these same authors B, sc or zon erifolium, Willd. is 

 not at all the simple synonim of B. falcatum, L. i2)se. 



B. falcatum, L. s. st.=B. falcatum var. genuin um, 

 Briquet = B. falcatum subsp. eufalcatum, Wolff {em. 

 K.-PoL] according to Linn e's Species plantarum editio princeps 

 17 5 3 437 n" 6 „habitat in Misniae et Vallesiae saepibus". B. s с or- 

 z on erifolium, AVilld. =:B. falcatum var. scorzoneri- 

 folium, Ledb. = B. falcatum subspec. scorzoneri folium, 

 K. -Pol. to wich the Japanese plant really belongs, represents an 



1 Y a b e Revis. Umbell. Japon. The Journ. of the Coll. of Science Imper. 

 University ToJcyo XVI 4 19 2 30—34. 



2 Matsumura Index pi. Japon. II 2 19 12 42S— 429. 



