M MM.' 



OF TIIK IIIVTOLOGIC CHARACTERS, ETC. 



828 



t ) fall unil.T Hune u or inclined to 

 seed parent, .i:t' (.'I'M JHT cent) under same M r in 

 clme.j t<> |MilliMi p.innt. 1 in i 1 ; .; ) under same 



u both pan-tit*, and 111 (11.1 percent) under M dona 

 an t.> the other parent. Nearly all of the reaction* 

 recorded aa being the aame aa thoae of both parenta have 

 been found ao because of too rapid or too alow gelatiniza- 

 ti<>n. ami therefore doubtless misleading and def 

 in classification. It U of especial iutereat to note that 



TABiaG I. -Summary t/8mt*n<ndIcU*otio* of U* Rviciim- 

 int.n,,i,t* of tkt Slarektt j to Hybrid* in relation to |A 



> / 



1 . . 



Bmiudonna aandarca alba. 

 Hninwinnna 

 Rippaaatrum tit 

 Hippamatmm oawllan-pyrrha. 



kAoia albert . 



.m hybridum j. e. h . 



( r mum kirrape 



( 'riiiuin puwt41ii 



:,, dainty maid 



lMj.rilL> ntMaMt ftf H^m 



Nnineaianteai ... 

 Nrrine abundance . 



Neriaa afery of avnia 



NafcMMsa poaucoa Derrick . 



Nutaawa poetieua daate . . 



Naraam poetaa triumph. . 



Naraaauafia 



Na 



Na 



Nardana will aoarirt 



Narcuaua bieolor apricot 



Narciaaue madama de graaff . 



Naraaau* pyramua 



Naraiaaua lord robarta 



Naroiaaui J. t bennatt poa!! ! 



I.iliurn marfaaa 



l.iluim ilalhm in 



I .ilium aolden (lorn 



I .ilium teetaeaom 



I .ilium burbanki 



Iriaiamali 



Iria dorak 



Iria mr. alan rry 



Iria puniod 



Oladioluaeolrillei 



Tritooia erocoanuaflorm . . 



i-w - 



Rfahardia mra. rooaevalt . 



Muaa hybrida 



Phaius hybridui 



Miltonial 



l -alanthe eithH. 

 Calantbe hryan . . 



Total number of react ioaM. . 

 Par cent of 1018 i 



a or 

 indined to- 



H 



ll 

 13 



a 



ii 



7 

 19 





 1 



22 

 



7 



! 



12 



17 



13 



10 



13 



7 



10 



. : 



H 



23 



8 







7 



1 







8 



- 



4 

 11 

 3 



10 

 



7 







6 







9 



25 



4 



- l 







8 



10 



12 



10 



5 



5 



17 



4 



3 



3 



4 



3 



3 



3 



4 



S 



2 



12 



10 



8 



6 



5 



a 



9 



13 



8 







4 

 

 2 

 4 

 3 

 6 

 25 

 7 

 2 

 1 

 1 

 5 



434 330 

 42.7 32.4 



75.1 



I 



I 

 I 



I 



- 

 1 

 I 

 - 

 I 

 I 



; 



2 

 I 



a 

 i 



g 



i 

 

 l 



i 



140 

 13.8 



. 

 Jl 



. 

 I 

 I 

 I 

 I 



I 

 I 

 I 

 I 



I 

 I 



1 

 2 

 4 

 3 

 I 

 

 

 

 







1 







1 

 1 

 1 



2 



7 

 8 

 2 



3 

 2 



1 

 

 

 

 3 

 1 

 

 I 



12 

 1 

 5 



114 

 11.1 



. l | 



764 (75.1 per cent) of the reactions fall under the first 

 two column*, 455.7 per cent of the 75.1 |T < -nt. or dm- 



tin. tlv :. than one-half, being in favor of the aeed 



parent and tin- n-inninin^ .>;'. 1 JUT <vnt U-ing in favor of 

 the pollen parent, showing a distinctly greater influence 

 of the seed parent. The last column includes many of 

 the intermediate, excess, and deficit reactions of the hy- 

 brids, some of which will likely be traced by further 

 investigation to closeness to one or the other parent 

 Thus when a reaction of the hybrid exceeds parental 

 limits and is as close to one as to the other parent it is aa 

 likely that the peculiarity of the hybrid is due to one of 

 the parents as to both. At present we hate not the data 

 to permit of this differentiation. 



REACTION-INTENSITIES OF Al.l. TIIK HviilUI. SrAKCHE* 

 will! Hull AOENT AND ItRAOBNT AND AH KEOARDti 



SAMEVK88 AND INCLINATION OF TlIKIR 1'llOPEKTIEN 

 IN RELATION TO ONE OR THE OTHER OR BOTH 

 PARENTS. 



(Table H. Part* 1 to 20 and Summaries 1 and 2.) 



In Table F, 1 to 50, in a preceding subsection it ia 

 shown that combinations of the reactions of starches with 

 different agents and reagents give in the case of each 

 starch a mosaic picture that is specific to the starch, no 

 two tablet) being the same, or even very much alike, even 

 when the hybrids are of the same cross ; and that, as a 

 corollary, each hybrid starch can positively l>e diagnosed 

 from every other by the peculiarities of the parental rela- 

 tionships. It was also rendered evident that this demon 

 ^(ration of individuality ix dependent upon both specifi- 

 city of the starch and specificity of the acrent or reagent, 

 as is manifest by the fnct that if one starch he substituted 

 for another or one reagent oubstitutcd for another the 

 react ions may be like or unlike. Thus, taking the three 

 C'rinums. it will be wen that the iodine reactions of the 

 seed parenta are in all three the came or practically the 

 '.nine as those of the corresponding pollen parents. In 

 the temperature reactions one ((\ hybridum j. r. h.) 

 has a higher reactivity than that of either parent and 

 closer to the pollen parent; another (C. Irirenpf) has an 

 intermediate reactivity and is closer to the seed parent; 

 and another (C. potrtllii) has a higher reactivity than 

 that of either parent ami closer to the pollen parent 

 In the chloral-hydrate reactions ore hybrid M inter- 

 mediate and closer to the pollen parent ; another the aame 

 as the seed parent ; and another the highest, and as close 

 to one as to the other parent. In the pyrogallic acid 

 reactions one hybrid is the lowest and closer to the pollen 

 parent ; another intermediate and closer to the pollen 

 parent; another highest and closer to the pollen parent, 

 ; In other words, the nature of the reaction is deter- 

 mined by the character of the starch plus the character 

 of the agent or reagent ; each starch has inherently poten- 

 tialities of both parents that are expressed by reaction- 

 intensities, either or both of which may be elicited in 

 accordance with conditions; different agents and reagents 

 may behave the same or differently in relation to theae 

 potentialities; and either parental potentiality can be 

 developed at will by proper selection of the agent or 

 reagent. 



Theae facts are of such fundamental importance and 

 broadness in their bearings that it seems to be highly 



