22 
I. NAGAI 
Name of plant 
Chromogen P 
Chromogen F 
“ Navvies Janet ” (“ Kokko ”) 
III 
I 
“ Smith Cider ” (“ Ryugyoku ”) 
III 
II 
« King of Tempkins Country (“ Hinokoromo ”) 
III 
II 
If was noted that the reduction colour of the extract of the leaf of the 
pear and that of the apple was somewhat different ; the former was orange 
red, the latter more scarlet red, suggesting that different flavones might be 
present in them. 
In the leaf of Morus cfba, which is very important in sericulture, the 
chromogenic substance F was found but not the other, while in the leaf of 
Iris Kœmpferi, the reverse was the case, and in the latter, the chromogen 
content in the leaf was not correlated with the colour of the perigone, some 
of which are deeply coloured. 
Table 11. 
Tlie chromogen content of the leaf of Morus ctlba and Iris Kannnferi. 
Name of phmt 
Chromogen P 
Chromogen F 
Remarks 
Morus alba 
“ Mishima ” 
— 
n 
“ Akagi ” 
— 
ii 
“ Ro-so ” 
— 
hi 
“ No-so ” Seedling 
— 
IV 
“ Furisode ” 
— 
IV 
Iris Kœmpferi 
No. 1 
I 
— 
The colour of perigone 
solid hyacinth purple. 1 
No. 2 
II 
— 
Flecked violet purple 
No. 3 
III 
~ 
Solid Rood’s violet 
No. 4 
III 
— 
Flecked violet purple 
No. 5 
I 
(Y) 
Self pansy violet 
No. G 
I 
(Y) 
White 
1. Nomenclature according to Lido way, R Color Standards and Color Nomenclature, 1912. 
