203 



the DipterocarpacesB iii the seliizogeuoiis resin-ducts. They resemble the Ebe- 

 nacea3 in their iriut. 



191 Dipterocarpacese : Related to the Guttiferse in the resin-ducts, the 

 family is also comparable to some extent "with the Theaceas, Oclmaceae and 

 Tiliacea?. In the presence of a ring of secretory canals in the medulla-crown, 

 it resembles the Cornaceae, Siinarubaceae and Hamamelidacea 11 . 



192 Elatinaceae ^ ' DE CANDOLLE assigns tliis family to his Caryophyl- 

 lerc ; BARTLING joins it to the Lythracea? ; while BRONGNIART and A. BIIOWN 

 place it near the Crassulacea?. Recently, it has been brought near the Tamari- 

 cacea? and Frankeniacea3 with which the Elatiuaceae show similar receptacles 

 and ovaries, and bilamellate placentas. 



193 Frankeniaceae : : This family is aUied to the Guttiferse in the habit, 

 in the andrceceum and in the gynfficeum (mostly trimerous). But, it is closaly 

 related to the Tamaricaceae, and is also comparable with the Caryophyllacere. 



194 Tamaricaceae : This family is certainly comparable with the 

 Fraukeniacepe and Elatiuacea?. But, when we consider the gyuaeceum, 

 placenta, ovules, seeds, and fruit and even the perforation of vessels and other 

 anatomical characters, we are forced to conclude that the Tamaricace* are 

 without doubt related to the Salicaceae. 



195 Fouquieriaceae : These are unquestionably related to the Pole- 

 inoniace?e, in the 3-celled ovary, in the more or less connate styles, and in 

 the tube-like corolla with stamens at its base. In other respects, the}- are 

 quite close to the Tamaricaceae. 



196 Cistaceae (5) ' Near the Bixaceaa and Yiolaceae. 



197 Bixaceae 7) : VAN TIEGHEM refers this family to the Mai vales. ENGLEB 

 places it in the Parietales. The latter opinion is explained by the resemblance 

 of the Bixaceas and Flacourtiaceae, while the former is substantiated by the 

 agreement of the Bixaceae and Tiliaceas in the mucilage canals in the medulla, 

 cortex, and leaves ; in the loculicidal dehiscence of the fruit ; in the hairy 



1) 1. c. III. 6, p. 252. 2) 1. c. III. 6, p. 279. 



3) 1. c. III. 6, p. 286. 4) Nat. Pfl.-fani. III. 6, p. 2'J1. 



5) 1. c. Nacht. L pp. 251 and 368; Naclit. III. p. 228. 



6) Nat. Pfl.-fam. III. 6, p. 302. 7) 1. c. III. -6, p. 309; Naclitr. III. p. 231. 



