46 MORPHOLOGY 



types (fig. 46), namely: (i) convolute, as in Plan- 

 tain, where the leaf-blade is rolled from one margin 

 to the other like a rolled-up map ; (2) conduplicate, 

 as in kanchan, where the two halves of the blade are 

 folded with their upper surfaces facing each other like 

 the leaves of a folded book ; (3) involute, as in padma 



f] Q^ 6^ r^ P 



12 3 4 56 



Fig. 46. — Vernation of Leaves 

 1, Convolute. ^, Conduplicate. 3, Involute. 4, Revolute. 5, Plicate. 6, Circinate. 



or Lotus and badam or Country Almond, where the 

 two margins roll inwards towards the mid-rib; (4) 

 REVOLUTE, as in karabi {Nerium odorum), where the 

 margins roll outwards towards the mid-rib; (5) pli- 

 cate, as in Tal-palm, where the blade is folded upon 

 itself several times; (6) circinate, as in Ferns and 

 shushuni-shag {Marsilea), where the leaf is curled 



up from the apex 



r''*^^ /'^*'"\ /N A towards the base, 

 ) ( ) f[()n flW like the tail of a dog; 

 \^^ "^-sx \j \J and (7) crumpled,^ 

 , 2 3 ^ as in Cabbage, 



Fig. 47.-1, Valvate. z, Imbricate. 3, Equitant. whcre thc bladc is 



4, Haif-equitant. irregularly folded. 



The way in which 

 the young leaves are arranged with respect to one 

 another in a bud also deserves special notice. The 

 arrangements are of the following principal types 

 (fig. 47), namely: (i) valvate, when the leaves are 

 in a whorl with their margins approaching or barely 

 touching one another; (2) imbricate, when the mar- 

 gins overlap one another; (3) equitant, where two 



