CISTIFLORS:. 



415 



Other genera show more distinctly than these the same structure as in the 

 preceding orders, namely : S5, P5, A5 + 5, of which the calyx-stamens are often 

 suppressed, and the petal-stamens divided into numerous stamens. Kielmeyera 

 (S. Am.) 



260 species ; especially in the Tropics (E. Asia, Am.) The leaves of Thea 

 chinensis (or Camellia thea), the Tea-tree (E. Asia), are cultivated for the 

 well-known "tea," and contain thein : the best are the young, still hairy 

 leaves, of greyish colour; there are many varieties. Ornamental plants, 

 Camellia japonica and Actinidia. 



FIG. 428. Thea chinensis (reduced). 



Closely allied to this order are : Order 15. Rhizoboleae (with enormously 

 large hypocotyl hence the name), and Order 16. Marcgraviaceae (partly 

 epiphytes, with dimorphic leaves and cup- or helmet-like, coloured, honey- 

 secreting floral-leaves, which serve to attract insects). 



Order 17. Dipterocarpaceae. This order has taken its name from the large 

 wings attached to the fruits in Dipterocarpus (the wings being largely developed 

 sepals) ; trees and shrubs from Trop. Asia. 180 species. Camphor ready 

 prepared is found in the stem of Dryobalanops camphor a. Hopea ; Valeria. 



W. B. 



EE 



