46 



HISTOLOGIC PROPERTIES AND REACTIONS. 



phide, sodium hydroxide, sodium sulphide, calcium ni- 

 trate, uranium nitrate, strontium nitrate, cobalt nitrate, 

 copper nitrate, cupric i-hloride, barium chloride, and mer- 

 curic chloride. 



(5) In the hybrid, //. (keones-zephyr, the very high 

 miis with polarization and sulphuric acid; the high 

 with chromic acid, pyrogallic acid, and sodium salicylate ; 

 the moderate with iodine, gentian violet, and safranin; 

 the low with temperature, nitric acid, hydrochloric acid, 

 potassium hydroxide, and potassium sulphocyanate ; and 

 ery low with chloral hydrate, potassium iodide, po- 

 tassium sulphide, sodium hydroxide, sodium sulphide, 

 calcium nitrate, uranium nitrate, strontium nitrate, 

 i nitrate, copper nitrate, cupric chloride, barium 

 I meri uric chloride. 

 The following is a summary of the reaction intensi- 

 ties : 



Notes on the Hippeastrums. 



The hippeastrums exhibit properties in general so 

 closely alike as to suggest very closely related plants, 

 such as in fact they are. In histological properties while 

 all possess in common certain fundamental generic char- 

 acters, each has certain individualities that are mani- 

 fested in variable ways. Each hybrid is more closely 

 ed in certain histological features to one parent and 

 in certain others -to the other parent, but the directions of 

 these variations may be the same or different in the dif- 

 ferent hybrids. Thus, in form //. titan-cleonw, is closer 

 to the Beed parent than to the pollen parent, while in 

 IF. ossiillrni-piirrha the relationship is closer to the pollen 

 parent. ; in hilum two of the hybrids are closer to the 

 seed parent and one closer to the pollen parent; in 

 Use in one hybrid in characters they are nearer the 

 pollen parent, but in number the same as both parents, 

 in another hybrid the number is the same as in the seed 

 parent but in the characters closer to those of the pollen 

 parent, and in the third hybrid characters and number 

 are closer to seed parent ; and in size one hybrid is more 

 closely related to the seed parent, another to the pollen 

 at, and another in the larger grains to the pollen 

 parent. The hybrid modifications are associated with 

 inherent peculiarities of the parents, and inasmuch as 

 the parents of the three sets differ the hybrids differ, 

 and in fact they differ as much from each other as do 

 the parents. 



The uniformity or close correspondence in the courses 

 of the velocity-reaction curves in the case of each reagent 

 associated with a corresponding uniformity of the com- 

 rcaction curves affords striking evidence of the 

 accuracy of the method employed in the recognition of 

 t relationships. In a word, there is a hippeastrum 

 curve, which curve is modified in relation to each plant 

 repre - nted. 



The parental relationships of the hybrids in the 

 various reactions arc as variable as those indicated in 

 the histological peculiarities. Each of the hybrids mav 

 be in some of the reactions the same as the seed parent, 

 in others the same as the pollen parent or as both parents, 

 in others intermediate, and in others higher or lower than 

 either parent. Intcrmediateness is far from being the 

 rule, since in only 13 out of 78 reactions was intcrmedi- 

 ateness recorded, and in only 6 was there mid-inter- 

 mediatcness. In fact, reactivity of the hybrid in excess 



Table A 5. 



Chloral hydrate: 



11. katheruue 



H . magnificua 



II. andromeda 



Chromic acid: 



H. katherinffi 



11. magnificua 



II. andromeda 



Pyrogallic acid: 



H. katherinffi 



H. magnificus 



H . audrumeda 



Nitric acid: 



H. katheruue 



H. magnificua 



H. andromeda 



Sulphuric acid: 



li. katht-rinaj 



H. niagnificus 



H. andromeda 



Hydrochloric acid: 



H. katherina; 



H. magnificus 



H. andromeda 



Potassium hydroxide: 



H. katherinffi 



H. magnificus 



H. andromeda 



Potassium iodide : 



H. katherinffi 



H. magnificus 



H. andromeda 



Potassium sulphocyanate: 



H. katherinffi 



H. magnificus 



H. andromeda 



Potassium sulphide: 



II. katherinffi 



H. magnificus 



H. andromeda 



Sodium hydroxide: 



H. katherinffi 



H. magnificus 



H. andromeda 



Sodium sulphide: 



H. katherinffi 



H. magnificus 



H. andromeda 



Sodium salicylate: 



H. katherinffi 



H. magnificus. 



H. andromeda 



Calcium nitrate: 



H. katherinffi 



H. magnificus 



II. andromeda 



Uranium nitrate: 



H. katheriniu 



II. magnificus 



11. andromeda 



Strontium nitrate: 



II. katherinffi 



H. magnificua 



II. andromeda 



( lobalt nitrate: 



H. katherinffi 



II. magnificua 



II. andromeda 



* lopper nitrate: 



II. katherinffi 



II. magnificua 



II. andromeda 



Cupric chloride: 



H. katherinffi 



II. magnificus 



II. andromeda 



Barium chloride: 



H. katherinffi 



II. magnificus 



II andromeda 



Mercuric chloride: 



H. katherinffi 



H. magnificus 



H. andromeda 



7 

 4 

 5 



1 



3 



0.5 



3 

 7 

 1 



1.5 

 4 

 3 



10 



10 



9 



1 

 7 

 3 



1 

 3 

 3 



I 5 

 1 

 1 



2.5 



7 

 1 



20 

 14 

 20 



0.5 



19 



8 



7 



20 



3 



■in 

 12 



35 

 75 

 50 



3 

 35 



60 

 15 

 29 



23 

 27 

 25 



10 



1,0 



8 



3 

 45 

 13 



79 



87 

 81 



10 

 66 



11 



2 

 11 



7 



2 

 4.5 

 2.5 



II 

 3 



0.5 



0.5 



2 



0.5 



80 



56 



1 



2.5 

 0.5 



1 



2 



0.:, 



2 

 1.5 



li;, 



0.5 



0.5 

 0.5 



0.5 

 0.5 

 0.5 



0.5 

 0.5 

 0.5 



1.25 



0.5 

 0.5 



1.25 

 0.5 

 0.5 



22 

 3.5 



15 



7.5 



1 



'.".I 

 36 

 98 



3.5 



67 



17 

 35 



92 



M, 

 I.O 



12 



re 



12 



4 



-is 

 15 



'JO 



'.17 



93 



12 



75 



:;u 



;; 



34 



-1 



2 



24 

 2.5 



27 



2 

 9.5 



2 



70 



'.ill 



95 



5.5 



3.5 



3 

 3 



0.75 



6.5 

 1.75 



8 



2.5 



