203 



tlie Dipterocarpaceao iu the sclii^sogenous resiu-ducts. Tliey resamble tlie Ebe- 

 nacesB in their frmt. 



191 Dipterocarpaceae ^^ : Related to tlie Guttiferae in the resin-ducts, the 

 family is also comparable to some extent with the Theaceae, Ochnacese and 

 TiHacese. In the presence of a ring of secretory canals in the meduUa-crown, 

 it resembles the Cornacese, Simarubacese and Hamamehdaceae. 



192 Elatinaceae^^ : De Candolle assigns this family to liis Caryophyl- 

 lea3 ; Baktling joins it to the Lythracese ; while Brongniart and A. Brown 

 place it near the Crassulacese. Eecently, it has been brought near the Tamari- 

 caceae and Frankeniaceae with which the Elatinaceae show similar receptacks 

 and ovaries, and bilamellate placentas. 



193 Frankeniacese ^^ .* This familj' is aUied to the Guttiferae in the habit, 

 in the androeceum and in the gyngeceum (mostly trimerous). But, it is closaly 

 related to the Tamaricacese, and is also comparable with the Caryophyllacese. 



194 TamaricaceaB *-^ • Tliis family is cei-tainly comparable with the 

 Frankeniaceae and Elatinaceae. But, when we consider the gyn^eceum, 

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

 anatomical characters, we are forced to conclude tliat the Tamaricaceae are 

 without doubt related to the Sahcacese. 



195 Fouquieriaceae "■' '• These are unquestionablly related to the Pole- 

 nioniacese, in the 3-celled ovary, in the more or less connate styles, and in 

 the tube-hke corolla with stamens at its base. In other respects, they are 

 quite close to the Tamaricaceae. 



196 Cistaceae*'^ : Near the Bixacese and Violaceae. 



197 Bixaceae"^: Van Tieghem refers this family to the Malvales. Engler 

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

 of the Bixaceae and riacourtiaceae, while the former is substantiated by the 

 agreement of the Bixacese and TiKaceae in the mucilage canals in the medulla, 

 cortex, and leaves ; in the locuhcidal 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.-fam. Iir.— 6, p. 291. 



5) 1. c. Nacht. 1. pp. 251 nnd 368; Nacht. III. p. 228. 



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



