197 



142 Burseraceae^ : In general characters, this family is quite close to 

 the Rutaceae and Simarabacese. But, if we take the presence of the resin-ducts 

 into consideration, we are forced to recognize that the same limited connection 

 exists between the Burseraceae and the very remotely placed Pinaceae, as be- 

 tween the latter family and the Anacardiaceae. 



143 Meliaceae J) : In the presence of secretory cells, these bear some re- 

 semblance to the Sapindaceae. 



144 Malpighiacese : Related to the Eryfehroxylacese, also to the Zygo- 

 phyllaceae through the intermediate form of Nitraria (Zygoph.). Somewhat 

 comparable with the Sapindacese in fruit and habit. 



145 Trigoniaceae 43 : Allied to the Polygalacese, Euphorbiaceae, Hippo- 

 crateacese, Malpigiacese, Sapindacese and Yochysiaceas. 



148 Vochysiacese 5) : Tliis family is placed close to the Polygalaceea by 

 BENTH.-HoOKEB, but it is brought near the Oanotheraceae by DE CAXDOLLE. 

 Also related to the Trigoniaceae. 



147 TremandraceaB G) : Near Porygalaceee, Sterculiaceae and Pitto- 

 sporacese. 



148 Polygalaceae 7) : Near the Leguminosae. 



149 DichapetalaceaB } ' So far as the sympetalous and zygoniorphous 

 flowers of some genera of the family are concerned, it should be assigned to 

 the Metachlamydeae. In other characters, the family shows the closest affinity 

 with the Euphorbiacese. 



150 Euphorbiaceae' : As regards the structure of the gyuseceuin and 

 the seeds, this family is, generally speaking, closely related to the families of 

 the Geraniales. An undeniable resemblance is to be seen between the Euphor- 

 biaceaa and the Menispermace89 10) . 



151 Callitrichaceae 10 : In the structure of fruit and in the presence of 



1) 1. c. III. 4, p. 233. 2) Nat. Pfl.-fam. III. 1, p. 266. 



3) 1. c. III. 4, p. 52. 4) 1. c. III. 4, p. 311. 



5) 1. c. III. 4, p. 315. 6) BENTH.-HOOK. Gen. PLintaniru I. p. 134. 



7) Nat. Pfl.-fam. III. 4, p. 329. 8) 1. c. III. 4, p. 347. 



9) 1. c. III. -5, p. 13. 



10) DIELS, L. Menispermaceas, in das Pflanzenreich, IV. 94, p. 41. 



11) 1. c. III. 5, p. 122. 



