— 73 — 



„in cultivated fields, New Hampshire to North Carolina, west tO' 

 South Dakota, Tennesee, Kansas and Arizona" Ч — To Japan it will 

 be introduced most possibly from North America. 



It is the only species, whose appearence in Japan can be foretold 

 without any doubt. 



§ 11, some questions that require answers. 



Some questions to wich I cannot give answers in the meantime 

 are the following ones: 



Is B. falcatum" from Formosa B. falcatum Komarowi 

 or we here have to deal with an allied, but distinct race? 



Is B. falcatum scorzoneri folium of monophiletic or of 

 polyphiletic origin? The typic form has a evident allience to B. 

 falcatum bicaule; there are numerous intermediary forms bet- 

 ween them. The broadleavig, high, stout and toll form, aboundant 

 in East of area, can represent myself a derivative of B. falca- 

 tum flexuosum, which is conformed with B. falcatum scor- 

 z oner ifolium, s. st. 



1 В r i 1 1 n & E г w n Fl. of U. St. & Canada II 1913 639. 



