A OENETICO-PHYSIOLOOICAIi KTITJY 0\ THE FoItMATHiS VTC. 



45 



I'i(i>\ii piileas were exti-acted \\itli alculml fur n luug time, ami the extract was 

 tested for i-lin)iui)p_Mi. Pi-actü-ally iki rod coluur was fimud 1>y reducing uor 

 Ii_v healing' witli liydnicliluric ncid. 



Aiuoug the Fi plants certain auo- 

 CL a! lualies which nre worthy of mention, 



were found. 



Two spikelets born ou a panicle of 

 a plant which bore the red awn and 

 _^ello\\- paleas, jwssesseil the browu in- 

 ferior palea. 



Two spikelets born ou a panicle 

 of a pLiut lia\iug the spikelets which 

 liore a purple a^^■n, paleas and glumes 

 were sectori:üly pigmented with purple 

 and yellow (see text fig. 2.) 



T^\o gi'ains were found in Ji single 

 spikelet in one of the spikelets of a 

 normal plant. The spikelet of Oryza 

 scdiva normally beai-s only one gi"ain. 



In one plant, both paleas, inferior 



aud sujxjrior were foiuid to bear awn. 



The anomalous awns were shoi-t and 



red coloured. Normally, the inferior 



palea only possess a long awn. 



In one of the spikelets born on a panicle of a plant, the lodicules were 



found to be modifietl to small ivilea-like appeudtiges which were nan'ow and 



shai^jly pointed. 



Text fig. i. Showing the nnomaloiLs sec- 

 torially pigmented paleas. Bom on the 

 panicle of which spikelets were self 

 purple, (t, a', same spikelet ; h, V, same 

 spikelet seen from the different sides. 

 p, piirjilc area. 



(d) The llelation Between the Colour of the 

 Grain and the Paleas. 



It is of interest to obsene the diflerence in the kind of clu-omogeuic sul>- 

 stiuico of the brown pigments in the awn and the gi-ain. The coloiu- of the 

 gi-ain of most of the Jajmnese varieties is pale buft" but in hw, reddish brown. 



