KEY TO THE SYSTEM OF VICTOEIAN 

 PLANTS. 



MAIN DIVISIONS OF PLANTS. 



Plants provided with floral organs. 



Leaves mostly developed ; plants bearing stamens, pistils 

 and, in advancing age, embryonate seeds. Figures 1-126. 



Dicotyledoueae and Monocotyledoneae. 1 



Plants unprovided with floral organs. 



Leaflike organs rarely provided, replaced by frondal ex- 

 pansions ; plants bearing antheridia and archegonia in 

 earliest age on a minute prothallus, and bearing caselets 

 (sporangia) with very minute spores (substitutes for 

 seeds) mostly on fronds. Figures 127-152. 



Acotyledoneae vasculares. 105 



1. Venules of leaves mostly divergent. 



Calyx and corolla often divided into four and still oftener 

 into five parts or the corolla absent. Figures 1-111. 



Dicotyledoueae. 2 



Venules of leaves mostly parallel-longitudinal. 



Calyx and corolla often divided into three parts, or less 

 frequently both rudimentary or absent. Figures 112-126. 



Monocotyledoneae. 89 



2. Stigma present, ovulary closed. Figures 1-110. 



Angiospermae. 3 



Stigma absent, ovulary open. Figure 111. 



Gymnospermae. 88 

 B 



