NERINE. 



63 



that are found in the starches of both parents; and in 

 irregularity of outline they are nearer to N. bowdeni. 

 The hilum in character and eccentricity is the same as 

 that of N. samiensis var. corusca major. The lamellae 

 in character and arrangement, and the size are also nearer 

 those of this species. The number of lamellae is less than 

 in either parent. In the polariscopic figures and reac- 

 tions with selenite the relationship is closer to N. sar- 

 niensis var. cortisca major. In the qualitative iodine 

 reactions the raw grains behave more like those of N. 

 sarniensis var. corusca major, but the heated grains more 

 like those of the other species. In the qualitative reac- 

 tions with the chemical reagents the resemblances are 

 closer to the reactions of N. bowdeni in the reactions with 

 chloral hydrate and sodium salicylate, but closer to the 

 other parent in those with nitric acid, potassium iodide, 

 potassium sulphocyanate, and potassium sulphide. The 

 starch of the hybrid N. abundance, in comparison with 

 the starches of the parents, contains a smaller number 

 of compound grains and aggregates than either, and only 

 an occasional compound grain is seen of a type that was 

 noted exclusively in N. bowdeni; irregularity is more 

 than in N. sarniensis var. corusca major, but consider- 

 ably less than in the other parent. The form is in gen- 

 eral nearly mid-intermediate between the forms of the 

 parental starches, but somewhat nearer that of N. sar- 

 niensis var. corusca major. The hilum is in character 

 nearer N. bowdeni, but in eccentricity it exceeds that of 

 either parent and is nearer N. sarniensis var. corusca 

 major. The lamellae are in both character and arrange- 

 ment nearer N. sarniensis var. corusca major, but the 

 number is notably less than in either parent. The size is, 

 on the whole, intermediate, but somewhat nearer that of 

 N. bowdeni. In the polariscopic, selenite, and qualita- 

 tive iodine reactions it is nearer N. bowdeni. In the 

 qualitative chemical reactions with the six reagents re- 

 semblances lean to one or the other parent, but on the 

 whole the relationship is closer to N. bowdeni. For the 

 most part the hybrids bear closer relationships to each 

 other than does either to either parent. They vary much 

 in their parent-leanings, each independently of the other, 

 so that while one hybrid may show a leaning to the seed 

 parent in a given character, the other hybrid may 

 in this same character lean as markedly toward the 

 other parent. Thus, in form JV. giantess is more 

 closely related to N. bowdeni, but N. abundance is 

 nearly mid-intermediate between the parents with an 

 inclination to N. sarniensis var. corusca major. In 

 hilum N. giantess is closer to N. sarniensis var. 

 corusca major, while N. abundance is closer to N. 

 bowdeni in characters and to the other parent in eccen- 

 tricity. In lamellae both are closer to N. sarniensis var. 

 corusca major. In size N. giantess is closer to N. sar- 

 niensis var. corusca major, and N. abundance to N. bow- 

 deni. In the qualitative iodine reactions N. giantess is 

 in the reactions of the ungelatinized grains closer to 

 N. sarniensis var. corusca major, and in the gelatinized 

 grains closer to N. bowdeni; but N. abundance is in both 

 respects closer to N. bowdeni. In the qualitative reac- 

 tions with the chemical reagents N. giantess is with 

 certain reagents closer to one parent and with others 

 closer to the other parent, while N. abundance is closer 

 with all reagents to N. bowdeni. 



Reactiortrintenaities Expressed by Light, Color, and Tempera- 

 ture Reactions. 

 Polarization: 



N. bowdeni, moderate to high, value 85. 



N. sarn. var. cor. maj., moderate to very high, higher than in N. 

 bowdeni, value 90. 



N. giantess, moderately high to very high, lower than in either 

 parent, value 80. 



N. abundance, moderately high to very high, the same as N . giant- 

 ess, value 80. 

 Iodine : 



N. bowdeni, moderate, value 60. 



N. sarn. var. cor. maj., moderately deep, deeper than in N. bow- 

 deni, value 60. 



N. giantess, moderately deep, the same as N. sarn. var. cor. maj., 

 value 60. 



N. abundance, moderate, same as N. bowdeni, value 50. 

 Gentian violet : 



N. bowdeni, moderate, value 45. 



N. sarn. var. cor. maj., light to moderate, lighter than N. bowdeni, 

 value 40. 



N. giantess, moderate, same as in N. bowdeni, value 45. 



N. abundance, light to moderate, same as N. sarn. var. cor. maj., 

 value 40. 

 Safranin: 



N. bowdeni, moderate, value 60. 



N. sarn. var. cor. maj., moderate, much less than in N. bowdeni, 

 value 40. 



N. giantess, moderate, the same as N. bowdeni, value 50. 



N. abundance, moderate, less than N. bowdeni and much more 

 than N. sarn. var. cor. maj., value 45. 

 Temperature: 



N. bowdeni, in majority at 67.6 to 67.9°, in all at 74 to 75°, mean 

 74.5°. 



N. sarn. var. cor. maj., in majority at 70 to 71°, in all but rare grains 

 at 76 to 78.8°, mean 78.4°. 



N. giantess, in majority at 68.2 to 69.1°, in all at 70.9 to 71°, mean 

 70.96°. 



N. abundance, in majority at 69 to 69.9°, in all at 73.9 to 74.8°, 

 ' mean 74.3°. 



N. bowdeni shows in the polarization and iodine 

 reactions lower reactivities than N. sarniensis var. corusca 



