MONOCOTYLEDONS AND DICOTYLEDONS 



251 



modified in a great variety of 

 ways, and a prominent, often 

 very long, spur, in the bottom of 

 which nectar is secreted, which 

 must be reached by the proboscis 

 of an insect (Fig. 235). The 

 stamens are reduced to one or 

 two, and welded with the style 



FIG. 232. Flower of flag (Iris), 

 showing some of the sepals 

 and petals, one of the three 

 stamens, and the distinctly in- 

 ferior ovary, being an epigy- 

 nons flower. After GRAT. 



FIG. 234. Flower cluster of Gla- 

 diolus, showing somewhat zygo- 

 morphic flowers. CALDWELL. 



FIG. 233. Gladiolus, showing tuberous subter- 

 ranean stem from which roots descend, grass- 

 like leaves, and somewhat zygomorphic flow- 

 ers. After REICHENBACH. 



