SYSTEMATIC ARRANGEMENT. 231 



Endogens. 



b. The Knawol Tribe (Scleranthaceae). 



The Marvel of Peru Tribe (Nyctaginaceae), Plate 

 X. 1. 



Class II. GYMNOSPERMS. 



The Fir Tribe (Pinacese or Coniferse). 

 The Yew Tribe (Taxacea^). 

 The Cycas Tribe (Cycadaceae). 

 The Horsetail Tribe (Equisetaceae). 



Class III. ENDOGENS. 



There are no subclasses ; but there are five prin- 

 cipal groups, "sdz. : — 



1. Mpigynous ; ovary inferior; stamens and style 



distinct. 



2. Gynandrous ; ovar}- inferior ; stamens and style con- 



solidated. 



3. Hypogynous ; ovary superior ; flowers perfect. 



4. Spadkeous ; ovary superior ; flowers usually in a 



spadix, imperfect, either naked, or composed of 

 a whorl of scales. 



5. Glumose ; ovary superior ; flowers imperfect, com- 



posed of imbricated ribbed bracts. 



Under these groups are arranged the following 

 natural orders : — 



Group 1. Epigynotis. 

 a. The Ginger Tribe (Zingiberacca)). 

 The Arrow-root Tribe (Marantacea3). 

 The Banana Tribe (Musacca^). 



