SUMMARIES OF THE HISTOLOGIC CHARACTERS, EH 



JS7 



hybrid to .-1 maryllit btllaJonna, in the copper-nitrat*- and 

 OBprifrUorida nations it is not to close u the oilier 

 hybrid. 



Hn-MEAJtrmrM. (TABLBC2.) 



In ..nii'.iri!: these record* and keeping in view UM 



boUnical closeness of th* parents in each case, and also 



a corresponding . |.>seness of the offspring to the parent*, 



together with the great importance that i commonly 



attached t<> intermetliateneei a* a criterion of hybrid*, 



one in Mrurk l>y ( 1 ) the fn-|uenrv of the development 



f propertie-i <'f the hybrid in excess or deficit of parental 



i the appearance of reaction* in the hybrid 



WML -.!! in the |iur.-nt- ; and ( :l) the twinging 



<>f hybrid development to one or the other parent in an 



utterly inexplicable manner. Among the 36 designations 



of the three seta, in no less than 23 tome property or 



rties were developed in exceea of parental extreme*, 



and in 4 there waa deficient development. In two in- 



stance* properties were noted in the hybrid that were 



not apparent in either parent The hybrid of the first 



m form clo*er to the seed parent, bat in the second 



and third sets it if closer to the pollen parent; in hilum, 



m the first and third seta, closer to the seed parent, but 



in the second set closer to the pollen parent ; in lamella;, 



in the first set closer to the pollen parent, in the third 



er to the seed parent, and in the second set closer 



seed parent in number and to the pollen parent in 



il characters; in size, in the first set rlooer to the 



n the second set closer to the seed parent, 



and in the third set equally like both parent* in common 



'lit like the pollen parent in the larger grains. 



In polariscopic figures and reactions with selenite, in the 



first and second seta the hybrid* are more like the aeed 

 parent, but in the third set the likeness is to the pollen 

 parent. The Qualitative reactions with the chemical 

 reagents are full of interest. In the first set, with all 

 five reagents the reactions are, on the whole, closer to 

 those of the seed parent ; in the second set those of three 

 of the reagent* (chloral hydrate, potassium iodide, and 

 potassium lulphocyanate) are closer to those of the 

 seed parent, and two (nitric acid and sodium salicylate) 

 closer to those of the pollen parent ; and in the third set 

 those of four of the reagents are closer to the seed parent 

 and that of one (sodium salicylate) as close to that 

 of one a* to that of the other parent The relationships, 

 on the whole, are somewhat closer to the seed parent 

 The quantitative and qualitative reactions show com- 

 paratively the most variable relationships. 



HMAxnirg. (TABU C 3.) 



The hybrid in the first set, in form and hilum, in 

 closer to the seed parent ; in lamella? it resembles both 

 parent* in equal degree; and in size it U nearer the 

 pollen parent In the second set, in all four histologic 

 designations, it is nearer the pollen parent. In the 

 polariscopic figures and selenite reactions and in the 

 qualitative reactions with the chemical reagents the 

 resemblance (except the iodine reaction in the second 

 set) is closer to the seed parent In three instances 

 development in excess of parental extremes, and in one 

 instance individuality, were recorded. The quantitative 

 reactions are most vagarious in their relations to the 

 qualitative reactions. It is of interest to note that the 

 aeed parent is the same in both seta and that in both 



TABLB CS.HrnmanUnu, 



Clow. M a whole, to the 



Bead parent. Polka parent. 



EXOMI, deficit, < 

 individual. 



Quantitative reactions. 



1 II 



Excee*. individual 



(InteMity) intermediate 9 -< 



Intermediate 9 -o" 

 Intermediate 9 - o* 

 Intermediate 9 



a. 9 



s9 



serf 



Eitw 



(InteMfty) hihr than cither parent <f 



Intermediate 9 <? 

 Lower than either parent 9 



9 

 M 9 



M 9 



as 9 



Intermediate if 



