184 



ClaSS DlCOTYLEDONE^ 



Subclass Archichlamydese 

 Series XH. Verticillafce 



46 Casuarinaceae^^: So far as the anatiomical characters of the family 

 are concerned, it is closely related to the Gnetacese ; but if we lay much stress 

 upon the character of chalazogamy, it should be connected with the Juglanda- 

 ceae, the Betulacese, certain Urticacese^^ and the Ericacese''. 



Series XIII. Piperales 



47 Saururaceae*^ : Related to the Piperaceae. 



48 Piperaceae : AUied to the Saxiruracese. 



49 Ghloranthaceae : Kelated to the Piperaceae. 



50 Lacistemaceae^' : Near the Piperacese. 



Series XIV. Salicales 



51 Salicaceae''^: When the resemblance of perianth and inflorescence 

 is taken into account, this family is to some extent comparable with the 

 Betulaceae, and the Myricaceae. On the other hand, when we attach importance 

 to the structure of seeds and fruit, we should regard the Salicacese as a family 

 closely related to the Tamaricacese. Moreover, their relation to the Batida- 

 cese is to be found in the presance of the dimerous gynseceum. 



Series XT". Gnrryales 



52 Garryaceae : Their relation to other famiHes is not yet established. 



Series XVI. 3Iyricales 



63 Myricaceae : Related to the Juglandacse, Salicacese and Betulacese. 



Series XVII. Salnopsidales 



64 Balanopsidaceae^^ : They are related to the Euphorbiaceae in the 

 character of the ovules and approach the Fagaceae in the involucre of the 

 female flowers. 



1) Nat. Pfl.-fam. Nacht. III. p. 92. 



2) Jeffrey, E. C — The anatomy of Woody Plants (Chicago, 1917) p. 376. 



3) Jeffkey, E. C— 1. c. p. 385. 4) Nat. Pfl.-fam. m.— 1, p. 2. 

 5) 1. c. III.— 1, p. 15. 6) 1. c. m.— 1, p. 35. 



7) Nat. Pfl.-fam. Nacht. I. p. 116. 



