12 
S. KIKKAWA: 
In 1900, Sersusaguro Tanaxa, the adopted son of Y. Tanaxa pub- 
lished his classification of rice, in which he took the following points into 
consideration :— 
1 
2. 
3) 
4. 
2. 
The character of the flowering parts of the plant. 
Perennial character of the root stock. 
Size of the stem and leaf and their colour. 
Quantity of water required during growth. 
Number of days for the growth. 
His classification of cultivated rice is as follows! :— 
I. Long-glumed cultivated rice (Oryza sativa, L. var. glandigluims, 
Del.). 
II. Common cultivated rice (Oryza sativa, L. var. typica). 
1. 
Sub-var. 1. Non-glutinous rice (utilissima, Keke.). 
(A) Ordinary rice (communissima). 
(a) Awned. 
Ves Awnless. 
(a) Long-grained (longior, Al.) 
(b) Round-grained (cyclina, Al.) 
( I ) Large-grained (commums, Keke.) 
(II) Medium-grained (media.) 
(III) Small-grained (minuta, Presl.) 
These are sub-grouped into 7 accord- 
ing to the colour of the grain. 
(1) Glumes and awn or the tip of 
the glumes coloured alike. 
(2) Glumes and awn or the tip of 
the glumes differently coloured. 
These are again subdivided into 
15, according to the colour of the 
glume or awn. 
(B) Seented rice (moschata). 
(C) Violet coloured rice (violacea, Mag.). 
Journal of the Scientific Agricultural Society No. 42, p. 84-130. 
