132 



THE VEGETABLE KINGDOM. 



and when there are a number of flower-stalks arising from 

 one point the bracts there collected are called an "involucre." 

 A flower consists of several parts, the outermost green 

 scales, composing a set, are called the calyx, and each part 

 of it, is called a " sepal," within this is the " corolla " or that 

 coloured part which forms the most characteristic feature 

 of the flower, each part of the corolla is called a " petal ; " 

 when the corolla consists of but one piece, it is called 

 " monopetalous," and when of many, "polypetalous." 



The forms of corolla vary according to the form and the 

 mode in which the petals are placed, whether united or 

 separated, and to what extent, whether regular or irregular ; 

 the most usual forms are the following : 



Campanulate (Bell- Rotate (Wheel- shaped), Hypocrateriform (Sz 

 shaped), Canterbury Woody Nightshade. ver-shaped), Phlox. 



Infundibuliform (Fun- 

 nel-shaped), Tobacco. 



Labiate (Having Lips), Ringent 

 Bugle. 



(Grinning), 



