THE FLOWER. 45 



striking difference, both texture and color presenting a 

 decided contrast. Vegetable physiologists tell us that the 

 calyx is a continuation of the outer bark; the corolla, of 

 the inner cellular integument. Hence the corolla is dis- 

 tinguished by the exquisite delicacy of its texture, the soft 

 and flexible character of its petals, the brilliancy of its 

 color, the fleeting character of its existence. 



101. Each part of the corolla is called a petal Like the 

 calyx the corolla is frequently entire, and then it bears a 

 name analogous to that of the calyx under the same cir- 

 cumstances, monojyetalous ; and when divided, jyo/?/7:?e^aZo?^5. 

 The monopetalous corolla presents us with a great variety, 

 to which names have been applied indicative of their char- 

 acteristic differences. 



102. When the throat is short, and the limbs or petalous 

 divisions, short and spreading, it is called rotate. When 

 the border is like the rotate, but Avith a long tube, we call 

 it sflZver-shaped. When the throat is shorter, but wide in 

 proportion, and the margin separated into limbs, it is 

 campanulate, Canterbury bell. 



Fig. 63. Fra. 64. Fig. 65. 



103. When the corolla is separated into unequal divi- 

 sions, called the upper and lower lips, it is called lahiate, 

 posterior and anterior. These Avhen open, as in Fig. QQ, 

 are said to personate ; when closed, as in Fig. 67, are 



1 01 . What is each part of the corolla called ? Wlien entire, what is it called ? 

 WHicn divided ? 



102. What is a rotate corolla? Salver-form? Campanulate? Describe a 

 campauuiate corolla. 



103* Describe a labiate. Funnel-form. 



