20 
I. N AG AI : 
Name of plant 
Part 
examined 
Colour of seed 
when ripe 
Belative value of 
chromogens 
P F 
“Golden Wax” 
Seed 
Black 
If 
f 
“ Chosen ” 
99 
Beddish brown 
II 
+• 
“ Longfellow ” 
99 
Brown mottled on 
light yellow 
II 
+ 
“ Kumamoto-Ingen ” 
99 
White 
_ 1 _ 
— 
“ Black Valentine ” 
1i 
Black 
II 
— 
“ Canadian Wonder ” 
„ 
Beddish brown 
n 
— 
“ Birma-Ingen ” 
Phaseolus radiatus var. aureus 
99 
Black mottled on 
brown 
i+ 
Unnamed 
91 
White (pale buff) 
— 
“ Shiro-Adzuki ” 
9‘ 
11 
— 
— 
Unnamed 
if 
buff 
if 
(0) 1 
11 
Bed 
if 
IV 
\ 
“ Maru-Ba ” 
91 
11 
if 
IV 
“ Wase-Bainagon ” 
99 
91 
if 
IV 
“ Madara ” 
91 
Black flecks on red 
i 
rv 
“ Kensaki ” 
91 
Bed 
i 
IV 
“Yogore ” 
11 
Dark flecks on buff 
h 
+ 
“ Midori ” 
11 
Greenish grey 
i 
(0) 
“ Wase-Otsubu ” 
11 
Dark red 
i 
IV 
As we have just seen, the chromogenic substance P is plentifully found 
in the extracts of the immature coloured seed of Phaseolus vulgaris, but very 
scarce in or nearly devoid of the chromogenic substance F. In the leaf, the 
reverse is the case. 
Table 9. 
Chromogen content of the leaf of Phaseolus vulgaris. 
Name of variety 
Colour of flower 
Colour of leaf 
Chromogen 
P F 
“ Kotenashi ” 
White 
Yellowish green 
— 
— 
“ Ohtenashi ” 
11 
11 
— 
n , 
“ Kianeko ” 
Cream 
11 
— 
IV 
1. Orange colour. 
