COROLLIFLOR^ 



243 



ceoiis leaves and clusters of white or cream-yellow 

 flowers. Dischidia Rafflesiana (Plate VI) of Sylhet 

 and Cachar is a stout twiner with pitchers 2 to 5 

 inches long, the cavity of which is filled with water 

 and rootlets from the adjoining node. 



The Order is closely allied to Apocynacece in habit 

 and structure of the pistil, fruit, 

 and seeds, but differs from it 

 in valvate (not twisted) corolla, 

 pollen-grains in masses, and 

 anthers adnate to the stigma. 



Nat. Order 16. Loganiacece. 

 — Many genera of this family 

 may be regarded as Rttbiacece 

 with a superior ovarj'. Like 

 JRubiacece, Logan iacae are usu- 

 ally provided with interpetiolar 

 stipules. Two well-known 

 plants of this order are (i) 

 kuchila {Sttvc/uios lY/tx- 

 vomica), a tall tree from the 

 seeds of which the alkaloid 

 strychnia is extracted, and (2) 

 nirmalli or Clearing nut 

 {Strvchiios potatorum), a tree 

 the seeds of which are rubbed 

 into a paste, and the paste 

 added to dirty water causes the 

 impurities to settle to the bottom. Mitrasacme alsi- 

 noidcs (fig. 209) is a small herb common in waste 

 places. 



Nat. Order 17. Gentianacece. — A cool-climate family 

 abundant in mountainous regions, represented by 

 three or four species of aquatic plants of the plains 

 of Bengal belonging to the genus Limnanthemum 



Fig^. 209. — .tfi/rnsacrne 



