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AUGUST 190?.] NAKAI.~AN OBSERV. ON JAPANESE ACONITUM. 129 



*"" Height of stem 4 feet or more 



...A. Kamtschaticum Willd var laxurians Reichd. 

 OO Leaves 3-parted or nearly so, lateral-segments 2-lobed or 

 parted. 

 A Leaf-dentation very slender, carpels mostly 3. 



* Leaf-dentation very acute, nerves very conspicuous... 



A. sachalinense Fr. Schmidt. 



■"* Leaf-dentation acute, nerves not so conspicuous 



A. Cammarum forma. Judcnbergense. 



A A Leaf-dentation lanceolate. 



Hood more or less laterally compressed, carpels 



mostly 3 A. Fischeri forma triscctum Nakai. 



Hood round, carpels mostly 5 A. chinensc Sieb. 



/?) Stem or twigs more or less flexuous or decumbens. 



O Peduncle elongate at least twice or more longer than the 

 flowers. 

 A Leaves 3-7 lobed, sometimes middle-segments more 

 incised. 



Leaf-dentation ovate, carpels 5...., 



A. zigzag forma grossedentatam Nakai. 



Leaf-dentation lanceolate or more slender, peduncles 



and twigs very flexuous, carpels 5. 

 1" Leaves very incised. ..A. zigzag forma incisum Nakai. 

 ft Leaves not so incised, palmately 5-lobed, dentation 



slender A. zigzag Level, et Vnt. 



AA Leaf-segments petiolulatcd..../!. Fauriei Level, et Vnt. 

 O Peduncle shorter, equal-length or a little longer, than the 

 flowers. 

 ^A Raceme long, leaf-segments petiolulated, very incised. 



* Raceme terminal, erect, carpels mostly 5 



, A. Kusnczoffi Reichd. 



** Raceme terminal or axillar, hanging ; carpels 3 



A. yczocnse Nakai. 



AA Raceme shorter, terminal or axillar, not hanging. 



* Leaves 3-7 lobed or 3-parted, segments rhomboidal 

 carpels mostlj' 3 sometimes 4-5. 



t Leaf-dentation numberless, round or roundish. 



§ Leaves 3-parted, lateral segments 2-lobed 



A. japonicuni Thunb. a. genuinitm. 1. 



typicum Nakai. 



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