MISSTSSIIMM I-: XIM':R1 Ml-:\"l" STA'I'loX. '.I 



Tho CN'iilcncc ]in,'S(.'nlc(l in tin.' |ia]nTS nU'iil ii iiu'il aliriw, ,i;ih^ Id 

 show thai, in ,L;i,'ncral, tlu' slriK-Uiral chararUTS of liylimls arr inliT- 

 nu'iliaU' liolwcon ihosi,' of ihuir ]iai\'nts; yet, in s-inir casus as pninli''! 

 (Hit In- Macl'^n-lanc ('(t|-a ) tlicrc is a dcciiled luannig lnwaril i hk; m' 

 Xhv iitlu'i" I if tlu' l\\'i) iiarrnls. In dIIkt rases lluTr is a rijm|il('li_' (l(nr.- 

 inanco m-cr ciTtain cliararlri's as slinwn 1i\' Farnifi" (''.17) in I'l ilyjiudiinn 

 Schnciiieri, ur dnmnianLX' of mu' parenl ii\-cr llic liyl)riil in lln' iniiMialy 

 of its characters as shown 1)\- Ponhallow (lOliri) in Uij hx'liriil Catal])a 

 (C l)i,t;nonioidcs x C Kacnitcn ). 



In l)ut few of the |ia]i(_'rs were tile ]iarenl and hyljrid eliaraelers 

 tabulated or summarized, so that a ,i;eneral eom]iarison eouM lie made; 

 and but sli;,;ht attention was i;i\-(_'n to the relation (jf external and 

 histolot;ical characters. 



Hybrid Nicotianas. 



Xicot!a)ia Tahaciiiii. \'ar. l/a;'a)ia. a xarict}' common in iulti\'atioii . 

 was used as a iiislillatc iiarcnl m two crosses. (See liys. 1 and 4 ) 



Xicptm>ia svl'i'cstns and A'. ataUi. doweriiyi; tobaccos, wi.ti.' used 

 as staminate ])arents in the two crosses with X. Tal.iai.'uin. (For X. 

 s>'l\'estris, scL' fi,L;s. 2 and 4; and for X. alata, sei.' fi,L;s .") and 7.) 



Nicotiana Tabacum x N. sylvestris. 



Plants tall, slender, erect, \-i;4' irons, lo- bS dm. tall; cnli're ]ilant 

 viscid i)ubes?ent; u])].ier lca\'cs as.'"ndin,L,', aumil;ile-'i\"atc, ela-jiiiyi; 



Fig. 7. — Nicotiana a'at? 



