CALYCIFLOR^ 



2t3 



placentation). The CrassulacecB, with their succulent 

 stems and leaves covered with a thick cuticularized 

 epidermis, are xerophytes. They thrive best in dry 

 and sandy places. Rocks and walls are their favourite 

 seats. 



Nat. Order 4. Droseracece. — Herbs, sometimes 

 aquatic, mostly insectivorous. The representative 

 genera are Drosera, Aldrovaiida. 



Fig. iS,^ — Him^agar {Kalatichoe laciitiata) 



In Bengal are found Drosera Burmanni (see Plate 

 II, fig. a) and D. indica, both of which are small in- 

 sectivorous herbs with glandular (tentacular) leaves. 

 Drosera peltata, var. liinata (see Plate II, fig. b) 

 is an insectivorous herb of the Khasi Hills (Shil- 

 long). The flowers in these plants are either cleisto- 

 gamous or pseudo-cleistogamous. Aldrovanda vest- 

 ctilosa (see figs. 68, 69) or Malacca jhangi, a common 

 submerged herb of our tanks, also belongs to this 



