— 55 

 XX Herbs. 



Stout and tall, branched and flexuose by 

 zigzags upwards. Basal leaves mostly oblong. 

 B. falcatum scorsonerifolium ensifolium, 



I — 1 I — 1 Weak and lower, branched and flexuose 

 by zigzags from the base. Basal leaves 



lanceolate or lineary 



B. falcatum scorzonerifolium normale. 



OOO Oil tubes numerous, about 25, and continuous about the seed. 

 — Basal and cauline leaves narrow lanceolate, upper ones 

 narrowed at the base. Umbels 5 — 10 rayed. Bractlets 5 small 

 ovate green, each with 5 nerves, very shorter than the um- 

 belluls, about as long as pedicels of fruits. Pedicels short tliik 

 Ribs, broadly winged . . Б. americanum. 



I have included in that key also in the nomenclature -list not 

 the species certainly known from Japan only, but also ones, which 

 ■can exist in this region and, probably, there will be discovered. 



§ 3, system and nomenclature^ 

 I, Plurivittata, K.-Pol. A. H. P. XXX 2 1914 164. 



Oil tubes numerouse, about 25, continuous about the seed. Ribs 

 broadly winged. 



1, B. americanum, Coult. & Rose Revis, of North Americ. Umbellif. 

 1882 115, Contrib. from the U. St. Nat. Herb. VII I 1900 85.— 

 Wolff Pflanzenreich IV 228 [H. 43] 1910 122. — Kos o- 

 Poliansky! Journ. russe de botan. 1 9 1 3 n" I 3. 



S y п.: В. ranunculoides, auct. fl, sepienamer. e. pte. — non L. 

 1753. 



Illustrât.: Koso-Poliansky 1. с t. II. 



Type locality: Montana Valley of Musselshell River, Canby 

 VIII 18 8 2, etc. 



Geogr. limits: From Alaska to Montana! and Wyoming 

 ;[probably in Kurile]. 



