SUMMARY. 83 



Palmately compound leaves ara those which have their leaflets arranged 

 on the top of a common petiole. 



Nutritive modified leaves are those which are related either directly, or 

 indirectly to the nutrition of the plant to which they belong. 



Reproductive modified leaves are those which are related either directly 

 or indirectly to reproduction. 



Spines are those nutritive modified leaves or branches which are hard 

 and needle-shaped. • 



Tendrils are those nutritive modified leaves or branches which are thread- 

 like and capable of coiling spirally. 



Gataphyllary leaves are those nutritive modified ones which are small and 



Insectivorous leaves are those nutritive modified ones which are capable of 

 catching insects. 



The flower is an assemblage of numerous reproductive modified leaves. 



Floral leaves are those reproductive modified ones which constitute the 

 flower. 



Hypsophyllary leaves are those reproductive modified ones which are 

 situated below a flower or flowers. 



Spore-bearing leaves are those reproductive modified ones which bear 

 minute fructifications. 



Protective organs of a flower are the floral envelopes consisting of the 

 calyx and the corolla. 



Essential organs of a flower are the androecium and gynoscium. 



The calyx is the outermost envelope of the flower and it is composed of 

 flattened usually green organs. 



Sepals are those floral leaves which constitute the calyx. 



The calyx is said to be caducous, when it falls off as the flower expands. 



The calyx is said to be deciduous, when it falls off with or after the 

 corolla. 



The calyx is said to be persistent, when it remains after the flowering is 

 over. 



The dialysepalous calyx is one which consists of distinct sepals. 



The gamosepalous calyx is one which consists of more or less united 



The regular dialysepalous calyx is one which consists of distinct sepals of 

 equal size and like form. 



The irregular dialysepalous calyx is one which consists of distinct sepals 

 of unequal size and unlike form. 



The regular gamosepalous calyx is one which consists of more or less 

 united sepals of equal size and like form. 



