44 Colour and other Characters in the Potato 



PLATE VI. 



rhe G family, consisting of six individuals with their root crops are shown. G', G^ 

 and G^ are more or less typically "round." 



PLATE VII. 



The D family— Top row— Three tubers of parent plant. D' and D-, 1908, are the seedlings 

 raised in 1908 from D (l',)07) selfed. D' and D-, 1909, are seedlings raised in 1909 

 from D (1907) selfed. 



PLATE VIII. 



Seedlings of the family raised from cross D x A. The family consists of half "rounds" 

 and half "non-rounds." The "rounds" are Nos. 3, 4, 5, 8, 13, 11, 1-5, 16, 18, 19, and 

 3, 6, 7, 10, 12, 14, 18, 19, 20, 21, 22, 28. 



PLATE IX. 



Seedlings of the family raised from the cross "Record" x "FlourbaU." "Record" is 

 a kidney, "FlourbaU " a pebble-shaped potato (neither parents shown). One quarter 

 of the seedlings are "rounds," viz., Nos. 12, 13, 18, 21, 24, 2.5, 26, 30. 



PLATE X. 



Seedlings of the family raised from the cross i/' (f of family H, Plate IX) x A. Half the 

 seedUngs are "round," viz. : Nos. 4, 6, 7, 16, 17, 19, 22, 25, 26, 27, 29, 30, 34, 35, 36, 

 38, 39, 40, 42, 45, 49. 



PLATE XI. 



Seedlings of the family raised from the cross H'° (F' of family H, Plate IX) x A. Half 

 the family are "rounds," viz. : Nos. 1, 2, 3, 4, 10, 11, 13, 13a, 15, 17, 18, 19, 26a, 29, 

 31, 32, 33, 34, 40, 46, 48, 49. 



PLATE XII. 



Family J raised from the cross "Congo" x "Reading Russet." The fifth seedling, a 

 long white-tubered one, died out and is not shown here. 



PLATES XIII— XVIII. 



The family raised from the individual K^ {F' of "Congo" x "FlourbaU" seedling, 

 s?e Plate XXIX). This family for convenience has been divided into sub-families 

 7i6^, A'6^, etc., according to the particular seedball from which the seedlings were 

 grown. " Rounds" are to "longs" as 1 : 3 in this series, and the eyes are all deep 

 with the exceptions noted in the text. 



PLATES XIX, XX. 



The family raised from selfing K" (F' of "Congo" y. "FlourbaU" seedling, see Plate 

 XXI.X) the "rounds" are rather deficient, viz. : 13 to 60; the eyes are deep to 

 shallow, 3 : 1. 



