246 INDEX I. 



PAGE 



VI. SALVIAN. Soft and woolly, like miniature 

 blankets, easily folded, as the leaves of sage. 



VII. CATILINE. Softly succulent, with thick central 

 ribs, as of the cabbage. 



VIII. ALOEINE. Inflexibly succulent, as of the 

 aloe or houseleek. 



No rigid application of these terms must ever be at- 

 tempted ; but they direct the attention to important gene- 

 ral conditions, and will often be found to save time and 

 trouble in description. 



IV. THE FLOWER. 

 Its general nature and function 65 



Consists essentially of Corolla and Treasury 78 



Has in perfect form the following parts : 



I. THE TORUS. Not yet enough described in the 



text. It is the expansion of the extremity of 

 the flower-stalk, in preparation for the support 

 of the expanding flower 66-224 



II. THE INVOLTJCRUM. Any kind of wrapping or 

 propping condition of leafage at the base of a 

 flower may properly come under this head ; but 

 the manner of prop or protection differs in differ- 

 ent kinds, and I will not at present give generic 

 names to these peculiar forms. 



