184 



Class DICOTYLEDONE.E 

 Subclass Archichlamydeae 

 Series XII. Verticillatce 



46 CasuarinaceaB : So far as the anatomical characters of the family 

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

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

 ceae, the Betulaceaa, certain Urticacese 25 and the Ericaceae" . 



Series XUI. Pipe rales 



47 Saururaceae : Related to the Piperaceae. 



48 Piperaceae : Allied to the Saururaceae. 



49 Chloranthaceae : Related to the Pipsraceae. 



50 LacistemaceaB 5) : Near the Piperaceae. 



Series XIV. Salicales 



51 Salicaceae G) .' 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 Salicaceae as a family 

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

 c-983 is to be found in the presauce of the dimerous gyu[eceum. 



S3ries XV. Gftrri/ales 



52 GarryaceaB : Their relation to other families is not yet established. 



Series XVI. Mijricales 



53 Myricaceae : Related to the Juglaudaca?, Sahcaceae and Betulaceae. 



Series XVII. Balnopsidales 



54 Balanopsidaceae 7) ' They are related to the Euphorbiaceae in the 

 character of the ovules and approach the Fagacese 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) JEFFREY, E. C. 1. c. p. 385. 4) Nat. Pfl.-fam. HI. 1, p. 2. 

 5) 1. c. Ill 1, p. 15. 6) 1. c. m. 1, p. 35. 



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



