METAMORPHOSIS 57 



tening out, takes the form and colour of a leaf, and 

 performs its functions. Such a leaf-like modification 

 of the petiole is termed a phyllode (fig. 57). 



Tendril is the name given to thread-like modifica- 

 tions of buds, leaves or parts of leaves, and other 

 morphological units by the help of which plants 



climb upon other plants 

 t:i^-y^ or supports. For ex- 

 ample, the tendrils of 

 harhjorha {Vtits qtiad- 

 rangularis), goale - lata 



Fig. 58. — Matar (^Pisum sativum) 



t. Tendril. /, Flower, st, Foli- 

 aceous stipule. 



Fig. 59.— Tendrils (t) 

 and Leaf-like Stipules (s) 

 of Lathyrus Aphaca 



{Vitis pedata) (see fig. 174), and other Vines, which 

 are leaf-opposed, are modified terminal leaf- buds; 

 those of jhumka-lata or the Passion flower (see fig. 

 193) are modified axillary leaf-buds; those of matar 

 or Pea (fig. 58), masur or Lentil, mash-kalai and 

 moog {Phaseolus), chhagal-bati {Naravelia zeylanica), 

 and of many Bignonias are modified leaflets of com- 

 pound leaves; those of ulat-chandal {Gloriosa superbd) 

 (see fig. 249) are modified leaf-apices; those of jangli- 



