

n 



that are found in the starches of both parent*; and in 

 outline they are nearer to N. bowdtni. 

 !iiluin in character and ec> i the aame as 



that of A*. sarnitnsit var. eonuca major. The lamella? 

 in character and arrangement, and the size are aim nearer 

 tiuwe of this species. The numU-r of lamella* ia leas than 

 in cither pan-tit. In the polariacopic figures and reac- 

 tions with telenite the relationship is closer to N. tar- 

 mVn<iji var. eonuca major. In the qualitative iodine 

 reactions the raw grains behave more like those of N. 

 tarnitnsu var. eonuca 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 : : .V. buu-Jeni in the reactions with 



chloral h\. Irate and sodium salicylate, but closer t-> the 

 other parent in those with nitric acid, potassium iodide, 

 potassium sulphocyanate, and potassium sulphide. The 

 starch of the hybrid X. abundance, in comparison with 

 the starches of the parents, contains a smaller in. 



rnjMiiii"! grains and aggregates than either, and only 

 an occasional compound grain is seen of a type that was 

 1 exclusively in .V. bowdeni; irregularity is more 

 than in A*, tarn\ensi rar. conuca major, but consider- 

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

 eral nearlj mid-intermediate between the forms of the 

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

 nifnxis Tar. eonuca major. The hilum is in character 

 nearer A T . boirdrni, but in eccentricity it exceeds that of 

 r parent and is nearer A 7 , tanientit Tar. eonuca 

 major. The lamella- are in both character and arrange- 

 ment nearer A*. sarnitnis var. eonuca major, but the 

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

 on the whole, intermediate, but somewhat nearer that of 

 A", bowdeni. In the polariscopic, selenite, and qualita- 

 )odine reactions it is nearer N. bowdeni. In the 

 qualitative chemical reactions with the six reagent* re- 

 lances 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 giTen character, the other hybrid may 

 in this same character lean as markedly toward the 

 other parent. Thus, in form N. giantest is more 

 closely related to A 7 , bowdeni, but N. abundance is 

 nearly mid-intermediate between the parents with an 

 inclination to A 7 , fornienng Tar. eonuca major. In 

 hilum A 7 , giantes* is closer to N. tarniensit Tar. 

 conuca major, while A 7 , abundance is closer to N. 

 bowdeni in characters and to the other parent in eccen- 

 tricity. In lamellae both are closer to A 7 , sarniensis Tar. 

 eonuca major. In size A 7 , giant w is closer to A 7 , sar- 

 nifmit Tar. roruxca major, and A 7 , abundance to A', bow- 

 dfni. In the qualitative iodine reactions A 7 , giantea is 

 in the reactions of the ungelatinized grains closer to 

 A 7 , tarnientit Tar. eonuca major, and in the gelatinized 

 grains closer to A T . bowdeni; but AT. abundance is in both 

 respects closer to A 7 , bowdeni. In the qualitative reac- 

 with the chemical reagents N. giant tn* is with 

 certain reagents closer to one parent and with others 

 closer to the other parent, while A 7 , abundance is closer 

 with all reagents to A 7 , bowdtni. 



MMh4M9MMfsj Kffrntti y Ufkt, Color, mvt Trmftr*- 



Pblaitaalion: 



N. bowdeni. moderate to bifth. value as, 



N. mm. var. tor. maj.. moderate to very Uch. higher than la N. 

 bowdeni, value 90. 



N. ciuteee, moderately hich to very hick, lower than it, either 

 p*rol, value 80. 



N. abundance, moderately bleb to very Uch. Ik* eame a. N . ciant- 

 eee, value 80. 



I !::. 



N. bowdni. moderate, value 60. 



N. sara. ra. cor. maj.. moderately deep. deeper than in N. bow- 



doni. value 00. 

 N. ciaateea. modontely dcp. ib* MOM u N. mm. var. cor. maj.. 



value 00. 



N. abunduM*. moderate. MUD* u N. bowdvoi, valo* 60. 

 Gcntima riolct: 



N. buwdenl. modenkte, value 46. 



N. tun. var. cor. mj . lilit to moderate, lightrr Ibmo N. Iwwdroi. 



value 40. 



N. (iaalM*. moderate, earne a* in N. bowdeni. value 46. 

 N. abundance. liht to moderate, *ame u N. mm. var. cor. ma]., 



value 40. 

 Safranin: 



N. bowdeni, moderate, value 60. 



N. earn. var. cor. maj., moderate, murb lex than in N. Uowdrni. 



value 40. 



N. cianteee, moderate, the aame a* N. bowdrnl. value 60. 

 N. abundant*, moderate, lea* than N. bowdeni and murb more 



than N. earn. var. eor. maj.. value 46. 

 Temperature: 



N. bowdeni. in majority at 67.0 to 07.0*. in all at 74 to 76*. mean 



74-8". 

 N. earn. var. eor. maj.. in majority at 70 to 71*. in all but rare graini 



at 70 to 78.8*. mean 78.4*. 

 N. iantoe. in majority at 08.2 to 89. 1*. in all at 70.9 to 71*. mean 



70.96'. 



N. abundance, in majority at 09 to 09.9*. in all at 73.9 to 744*. 

 74-3*. 



A 7 , bntrdeni shows in the polarization and iodine 

 reactions lower reactivities than N. tarniennt var. conura 



TABLE A 11. 



