THE INFLORESCENCE AND FLOWER. 



39 



FIG. 126. 



FIG. 127. 



corolla. When a corolla has five petals, having each a 

 long, slender claw, as shown in Fig. 126,0, and a spreading 

 limb (/), it is caryophylld ceous (Fig. 127). 



A rosaceous corolla is shown, Fig. 128. Here there 

 are five petals with spreading limb, but the claw is short. 

 A liliaceous perianth has six leaves, bending away, as seen 

 in Fig. 115. 



Among irregular polypetalous corollas the most impor- 

 tant is the papilionaceous (Fig. 129), where c is calyx ; a, 

 wings ; car, keel. The large petal, called the banner (b), is 

 the upper one next the stem ; the two side ones (a) are 

 called wings, and the lower one (car) the keel, from its boat- 

 shape. Other forms of irregular polypetalous corollas are 

 said to be anomalous. When you have decided to which 

 of these kinds your polypetalous corollas belong, turn to 

 the gamopetalous specimens and separate them, the regu- 

 lar from the irregular. 



There are certain parts of a gamopetalous corolla that 

 vary in size and form in different flowers, and that are 

 shown in Figs. 130, 131. 



The union of the petals forms the tube of a gamopeta- 

 lous corolla. Any portion beyond this, where the petals 

 are not united, is the limb or border. The opening into 

 the tube is the throat. 



