50 



liguliform.* Sometimes there is an outgrowth from the 

 inner face of the petals, usually at the junction of the blade 

 and claw, or at the throat of a gamopetalous corolla, which 

 is often scale-like and reminds one of the ligule of Grasses. 

 Such outgrowths in a flower, collectively, constitute the so- 

 called corona. 



The calyx or corolla is said to be : 



Bi-labiate, if divided into two more or less distinct lips. 



Rotate, or wheel-shaped, when with a spreading limb 

 and very short tube. 



Crateriform, or cup-shaped, when like rotate but with 

 the limb curving upwards. 



Hypocrateriform, or salver -shaped, when with a long 

 narrow tube, abruptly expanding into a broad 

 limb. 



Trumpet-shaped, if salver-shaped with the tube 

 expanding near the top. 



Infundibuliform, or funnel-shaped, when the tube 

 expands gradually from the base. 



Campanulate, or bell-shaped, when the tube is expand- 

 ed from the base, with its length not more 

 than i/wice its breadth and with the sides 

 spreading outwards at the top. 



Urceolate, or urn-shaped, when the tube is swollen 

 in the middle and contracted at the top and base. 



Tubular, when there is a conspicuous nearly cylin- 

 drical tube and a relatively inconspicuous limb. 



Gibbous, when with a small pouch-like swelling near 

 the base. 



Ventricose, when swollen on one side, like the corolla 

 of several species of Strobilanthes. 



Saccate, when swollen at the base like a bag. 

 Spurred, when with a slender, hollow prolongation. 



The limb or lobes of the calyx are sometimes reduced to 

 hairs or bristles which are often branched and feathery and 

 which constitute the so-called pappus. The calyx in such a 

 case is said to be pappose. The pappus is often more or less 

 invisible in the flower and only becomes fully developed when 

 the fruit ripens, as is the case in Valeriana Wallichu. 

 . 48. The way in which the 



parts of the flower are arranged in the bud is called 



* The term ligulate is sometimes used in th ; s sense but. it also means 

 furnished with a ligule. 



