TKITONIA. 



117 



Taiii.e A 35. 



i 



T. pottaii 



P. orocoamia aurea 



T, crocoamsaflora 

 i Ihromic acid: 



T. pottaii 



T. orocoamifl aurea 



T. oroo isnuBflora 



Pj rogallic acid: 



T. pottaii 



T. orocoamia aurea. 



T i ii sflora 



Nitric acid: 



T. pottsii 



T. orocoamia aui ■ 



T. crocosmsaflora 



Bulphuric acid: 



i ttaii 



T. orocoamia aure i 



T. crocoamasflora 

 Hydrochloric acid: 



T. pottsii 



T. crocosmia aurea 



T. crocoaniBflora 



Potassium hydroxide: 



T. pottaii 



T. croooamia aurea .... 



T. crocoamtsflora 



T. i ■• > 1 1 - i i 



T. orocoamia aun i 



I cr smseflora 



! nun Bulphocyanate: 



T. pottsii 



T. crocoamia aui 



T. orocoameeflora 



Pota aium sulphide : 



T. pottsii 



T. crocosmia aurea .... 



T. crocosmaifli >ra 



Sodium hydroxide: 



T. pottsii 



T. crocosmia aurea 



T. crocoamsaflora 



Sodium sulphide: 



T. pottsii 



T. crocosniia aun 



T. crocosmn-llora 



Sodium salicylate: 

 I pottsii 



T. orocoamia aun 



T. cr mueflora 



Calcium nil 



T. pottsii 



T. crocosmia aui. 



T. crocosnuaflora 



Uranium nitrati 



T. pottsii 



T. crocosmia aurea ... 



T. crocoamaaflora 

 Strontium nitrate: 



T. pottsii 



T. crocoamia aurea 



T. crorosina'II<,ra . . . . 



T. pottsii 



T. crocosmia :e;r. 



T. crocosma?flora 



Copper nitrati 



T. pottsii 



T. crocoamia aur. i 



T. crocosmsflora 

 C'upric chloride: 



T. pottsii 



T. crocosmia aur 



T. crocoamsaflora 



Barium chloride: 



T. pottsii 



T. crocosmia aurea... 



T. orocosmsaflora 



Mercuric chl, 



T. pottsii 



T. crocosmia aurea .... 



T. crocosmsflora 



£ E 





111 



12 



! s 22 



33 



71 



34 

 13 

 29 



92 

 60 

 90 



19 



5 



11 



9 

 3 

 G 



24 



8 



10 14 



60 



73 90 



1 2 1 2 

 68 70 



'J. 99 

 90 92 

 98 99 



39 

 20 

 33 



67 

 27 



r,l 



97 

 86 



97 



8 

 2 

 4 



-7 

 58 

 91 



G8 

 29 

 65 



95 



36 



14 

 31 



It', 

 5 

 8 



50 

 13 

 80 



11 15 15 



2 3 I 4 

 2 3 4 4 



16 



8 

 15 



13 16 



i i 



6 1 9 10 11 



has a somewhat lower i The differences are, 



cm the whole, Buch as to su 



(2) Thi 

 ship • j. art 



to intermediateness and toward the curves of thi 

 parent. 



(.'i i An early period 

 ed, lint i" the contrary tl 

 usually present, so thai the pen 



d during the first 5 minutes is propo 

 mmonly very much larger, thai) 

 quenl 5 minute interval. An early period of resistance is 

 uoticeable particularly in thi with chromii 



ami p\ rogallic ai id, « hile a I"'.'. 

 noted particularly in those with hydrochloric arid, potas- 

 sium Bulpl . sodium hydroxide, sodium Bulp 

 ami sodium salicylate (T. pottsii and the hybrid). 



(I) The earliest period during the 60 minutes at 

 which the three curves are best separated, and 

 the best time for the differentiation of the starch 

 variable in relation to the different reagents. Approxi- 

 mately this pi ' it the end of 5 minute 



ins with potassium Bulphocyanate, sodium sul- 

 phide, and sodium salii j L5 minutes with chloral 

 hydrate, chromic acid, pyrogallic arid, hydrochloric 

 arid, potassium iodide, hydroxide, calcium ni- 



, uranium nitrate, copper nitrate, cupric chloride, 

 and mercuric chloride; at 30 minutes with nitric acid, 

 potassium hydroxide, strontium nitrati-, and cobalt ni- 

 i rate ; and at 60 minutes with potassium sulphide. 



Kl LI TION-INTENSITIES OF THE II YllKII). 



Thi the reaction-intei the 



hybrid as regards sameness, intermediatem 5, and 



deficit in relation to the parent. (Table A JO and 

 Charts D484 to D504.) 



The reactivities of the hybrid are the same as those 

 of the seed parent in the gentian-violet and temperature 

 reactions; the same as those of the pollen parent in the 

 cobalt-nitrate reaction ; I as those of both parents 



in the sulphuric-acid and barium-chloride reactions; in- 

 termediate in those with iodine, chromic arid, pyrogallic 

 arid, hydrochloric arid, potassium hydroxide, potassium 

 iodide, potassium sulphocyanate, potassium sulphide, so- 

 dium hydroxide, sodium sulphide, sodium salicylate, 1 al- 

 cium nitrate, uranium nitrate, copper nitrate, cupric 

 chloride, and mercurii chloride (in 14 being 1 Loser I 

 seed parent and in 2 closeT to the pollen parent i : high- 

 est with sairanin, nitric acid, and strontium nitrate 

 8 being closer to the seed parent and in the othi 

 the pollen parent); and lowest with polarization and 

 chloral hydrate, in both being closer to the seed parent. 



The following is a summary of the reaction-intensi- 

 ties: Same as seed parent, '.' : same as pollen parent, 1; 

 same as both parents. 2; intermediate. 17; highest, 3; 



lien parent seems to have had very little in- 

 fluence in determining the characters of the starch of the 

 hybrid. The tendency to intermediateness of the hybrid 

 eptionally well marked, and there is very little 

 tendency tor the hybrid curve to be higher or lower than 

 arental curves. 



Com POSIT] t !0RVES OF Itr ICTION-IN I! \-l I II '-. 



This section treat- of the composite curves ot' the 

 showing the differentiation of the 



starches of Tritonia pottsii, T. ia aurea, and 



T. crocosmwflora. (Chart E35.) 



Among the conspicuous features of the chart are: 

 l 1 ) The usually well-marked separation of the 



curves of the parents, together with an almost invariably 



