214 
XXIV.—NOTES ON SOME NEW AND CRITICAL PLANTS 
FROM EASTERN ASIA. 
H. TaxeEpa. 
During the time that I have been engaged in a study of some 
Japanese plants in the Kew Herbarium, [ have noticed several 
which have either required critical revision or have been left 
undescribed. In this short paper only certain plants belonging to 
six genera are dealt with, which for the sake of convenience are 
arranged alphabetically. 
ARISAEMA, 
Several names have been proposed for the various forms of 
Arisaema japonicum and A. serratum, Different views in classifi- 
cation have also been put forward by not 4 few botanists. These 
two plants have been known to us from the time, previous to 
acmpfer’s visit in the year 1690; he saw the former plant and 
referred to it in his book under the name of ‘ Nansoo, fc. . . .* 
Thunbergt considered the same plant to be Arum Dracunculus, 
comes across a specimen with a green flower (in the broadest sense), 
the leaf of which has conspicuous serration on the margin, or vice 
versa. After a comparison of a great many specimens obtained 
from different parts of Japan, Makino came to the conclusion that 
these two plants are merely forms of one and the same species.{t 
He adopted the oldest name serratum, for the specific name of the 
plant in question, and called the serrated-leaved form forma 
Thunbergit, and the other forma Blumei. 
The question seemed to have been settled then, and we followed 
this view, 
In the year 1906, I had an opportunity of collecting a good many 
oo of these Poe in several places of Central as well as 
orthern Japan. Examining those specimens, it struck me, that 
* Kaempfer, Amoenit. Exotic., p- 786. (1712). 
t+ Thunb. FI. Japon., p. 233 (1784). 
{ Blume, in Rumphis, i, p. 106 
t 7. , i, p. 106 (1835). 
Thunb. in Trans. Linn. Soc., ii, p: 338 (1793). 
Thunb, Ic. Pl. Japon., iv, tab. 7 
«y IV 
f Schott, Meletem. Bot., i, p. 17 (1832). 
*° Engl. in DC. Monogr. Phan. phere p. 549. 
Tf Makino, in Téky6 Bot. Mag., xv, pp. 128, 129 (1901). 
