IN THE TROPICS: III. 



IDT 



mealiness produced in such a case ( the physical as opposed to 

 the chemical nature of the endosperm) is something which 

 belongs to the sugary seed parent. It depends, that is to 

 say, on a maternal character hitherto " latent." Subsequent 

 generations will illustrate this point more clearly. 



(&) Starch Corn x Sugar Corn. — 



Experiment 7. — White Dent x Black Mexican. 

 ,, 8. — Yellow Dent x Black Mexican. 



,, 9. — Yellow flint x Black Mexican. 



,, 10. — White Dent x Giant white sugar corn. 



,, 11.— Yellow pop x G. W. S. 



12.— White pop x G. W. S. 

 There was no change in the shape or consistency of the 

 resulting grains in any of the above cases ; in both respects these 

 grains resembled uncrossed grains of their proper varieties. 



1. — The result of 

 Expt. 13.— Wh 



F 2. 

 mutual Pollination between Plants grown from 

 the Grains produced in F 1. 



He Dent x Black Mexican. 



IManl 



1 



2 



3 

 4 

 5 



6 

 7 

 8 

 

 10 



I] 



12 

 13 

 14 

 15 

 16 

 17 

 18 



Starchy. Sugary. 



Table 1. 



Total. 



Per ''.-Hi - 

 Si archj 



Per ecu! . 

 Sugarj . 



290 

 309 



:;T'.i 

 :::!:; 

 272 

 337 



3(K) 



320 

 :_'.->:; 

 288 

 308 

 292 

 277 

 243 

 290 

 286 

 232 

 299 



Total 5,310 



92 

 100 



I :;:. 



131 

 '.is 

 9.~> 

 97 



1 25 

 78 

 87 



117 

 !»7 

 !)] 

 72 

 98 

 97 

 60 

 93 



1,765 



382 

 409 



5 I 1 



mi 



370 

 132 



:i'.i7 

 117 

 :;::i 

 :i7."» 

 .425 

 :!s!i 

 368 

 315 

 388 

 383 

 292 

 392 



7,075 



76 



75 



73 



71 



73 



78 



7.") 



7 I • A 



70- 1 



77-0 



72-4 



7-V I 



75 • 2 



77-0 



7 17 



74-6 



79-4 



762 



75- 06 



23 

 24 

 26 

 28 

 26 

 21 

 2 1 

 28 

 23 

 23 

 27 

 24 

 24 

 23 

 25 

 25 

 20 

 23 



24 • !»4 



