944 



LIFE : OUTLINES OF GENERAL BIOLOGY 



among which florists are annually surpassing each other. Yet note, 

 as of Gladiolus type, the closely aUied Montbretia, still beautiful, 

 but smaller flowered, which in our northern gardens spreads in 

 exuberance till it has to be weeded back from overpowering all 

 around. Hence, then, our illustration of these two contrasted types: 



Fig. i6o. 



Contrasted Liliaceous Types. From specimens, i, "Red-hot Poker," Tritoma, 

 least floral of the three; 2, a related intermediate Galtonia; 3, a Tiger- 

 Lily, most gorgeously floral. 



Montbretia to left and a fine garden Gladiolus ("Marshal Foch") 

 on right; and with an intermediate branching and less floral form 

 of Gladiolus between. Here, then, even in very floral types, are 

 examples of the contrast of more vegetative and more floral; and 

 with such clearness as to suggest that this type of variation arises 

 from the perpetually recurrent rhythm in life, between its two essen- 



