II EM A\ mi S CRINUM. 



.-,1 



tions being high to very high. It is of interest to note 

 that in the sodium-salicylate reactions, with the i 

 tion of the reaction of //. n i i curves are not 



only very high bul also the same, while in this p 

 the curve is distinctly lower than in the former. In the 

 other reactions the curves of all of the starches bIiow 

 an unmistakable tendency toward coincidence in direc 

 tion, the rises and falls being quite in harmony, excepl 

 ing in //. puniceus with pyrogallic acid, in which there 

 is a marked aberration, this curve riBing while the 

 curves of the other four fall. This peculiarity has been 

 found in other genera, and is doubtless of both botanical 

 and general biological significance. Comparing the 

 curves of the three species, the curve of //. puniceus 

 tends to be the highest, thai of //. katherince the lowest, 

 and thai of //. magnificus intermediate, but near thai 

 of II. Icatherince, 



According to Baker, II. Icatherince belongs to the sub- 

 genus Nerissa, and II. puniceus and //. magnificus to 

 the subgenus Gyraxis, bul the results of this investiga 

 tion indicate that II. Icatherince and II. magnificus are 

 much more closely related than are //. puniceus and //. 

 magnificus. The curves of the former are such as to 

 indicate different species of a subgenus, while the curve 

 of //. puniceus is. as a whole, so well separated from 

 those of the other two specie s as to poini to t ! ii- species 

 a member of another subgeneric group. 



In comparing the influences of the parents on thi 

 properties of the offspring, it will he seen that in both 

 sets there is a manifest greater potency of //. katherina 

 than of the other parent, this being decidedly more 

 marked in the II. katherince-puniceus Mnig albert set 

 than in the //. katherince-magnificu 



7. Comparisons of the Starches of Ceinuji 

 mooeei, ('. zeylanicum, and ( '. hybeidom j. 



c. iiakvky. 



In histologic characteristics, in polariscopic Bgu 

 in the reactions with selenite, in the color reactions with 

 iodine, and in the qualitativ ns with the various 



chemical rea fents n will be noted thai the starches ol 

 the parents and hybrid exhibil properties in common in 

 varying degree elopment, and also individua 



which collects ristic in each case. The 



l rinum zeylanicum in comparisoi 

 of C. moorei exhibit differences in I 



irtain of the conspicuous forms; no! so much irregu- 

 larity of the grains; certain protuberances and curva- 

 tures that are not observed in 0. moorei; different 



and definition of component compound 



grains ; and more bi I flal ening of the grains. 



The hilum is less refractive and has less frequently a 

 the fissures are more numerous and 

 ■ d a dragon-fly form may be present; a longi- 

 tudinal fissure, rarely i in C. moorei, is usualh 



• nt. and it is longer, deeper, and branched ; and the 

 tricity is more variable. The lamellae are finer 

 distalward from the hilum than in C. moorei; there are 

 some differences in the conspi i . distrib 



and numb v coarse, and Beco 



Has ; and the number of lamella; is less. In size then 

 is loss variation, and the grains are. on the whole, dis 



with 

 selenite, and qua it 



i differences. There are also diffi . the 



qualitative is with tl 



of the bybrid are, in form, charai ten of the hilum 

 and lamellae, and in • f length to width 



r to those of l closer to 



I '. moorei. In polariscopic : 



nite, and qualitative reactions with iodine they are dis- 

 tinctly closer to those of 0. • m. In the qualita- 

 tive reactions with chloral hydrate, nitric acid, | 



ium iodide, potassium sulpho- 

 cyanate, potassium sulphide, sodium sulphide, odium 

 salicylate, copper nitrate, cupric chloride, and mercuric 

 chloride alliances to both parental Btarches ar>- i 

 hut the relationship eylanicum i- markedly 



than to the other parent. Ti 

 are most prominent in the sodiui 



Reaction-intensities I rpree$cd '•;/ Light, Color, an 



turc Reactions. 

 Polarization: 



C. moorei, high to very high, valui 

 C. zeylanicum, very high, much higher than ' 

 C. bybridum j o. harvoy, hinli to very high, higher than C. zeylani- 

 cum. value 95. 

 Iodine: 



C. moorei. moderate, valuo 60. 

 C. zeylanicum. lipid to modi rate, value 35. 



('. hybridum j. c. harvey, light, about the same as (". zeylanicum 

 value 35. 

 ( ;■ utian violl I . 



i '. in in i : p, value 65. 



C. zeylanicum, moderate deep to deep, deeper than C. n 



valui 

 C hybridum j. e. harvey, moderately deep to d< than 



either parent, value 70. 

 Snfranin: 



< '. moorei, moderately deep to deep, value I 



t !. zeylanicum, moderately deep to deep, deeper than in ( 



value 87. 

 C. hybridum j. c. harvey, rj lighter than 



in either pan nt. vale 

 Temperature: 



i rj rity a< 68 to 70 . all bul rare gi 



nn an 70.6°. 

 t '. zeylanicum, majority at 77 to 7s°. »ll but rare prams al 



60°, i 

 C. hybridum j. c. harvey, majority at 7- to BO . all but] 

 at 80 to 85 . mean 81°. 



The reactivities of C. moorei are lower than those of 

 ylanicum in the reactions with polarization, gentian 

 : anin, and higher in those with iodine and 

 rature. In all of these n 

 -afranin, the hybrid is i O. zeylanicum than to 



the other parent. In the iodine reaction it is the 

 as that of ' and lower than tha 



In the polarization and gentian violet the rea. tivit 

 higher than in either parent, and in th rature 



reaction lower than parent. The marked d 



ences in the temperature 



starches and the much closer relationship of the hybrid 

 to ( '. striking. In none 



the least I 

 hybrid, I 

 or deficit in relation to parental extn I 



Table A ! -hows the reaction-intensities in per 



I at definite intervals 

 I minutes) : 



