204 



NATURAL HISTORY OF PLANTS. 



ColutecB forms a third group with the six genera ; Colutea, Suther- 

 landia, Swainsona, Lessertia, Clianthtts, and Eremosparton. These 

 are herbaceous or rarely suffrutescent plants, of axillary inflorescence. 

 The flowers have a usually spreading or reflexed standard, diadelphous 

 stamens (9-i), muticous anthers, a multiovulate ovary, and a style 



Astragalus vents. 



Via. 161. 

 Habit (|). 



often rigid, always bearded along its superior edge. The fruit is 

 often bladder-like. 



The fourth subseries or subtribe, Indigoferea, only includes In- 

 digofera (Indigo-plant; Fr., Indigotier) and Cyanopsis. It consists 

 of herbs or shrubs, with often dotted leaves covered with peculiar 

 hairs. 1 The flowers form axillary racemes or spikes ; their anthers 



1 Fixed by the middle (" PiV medifixi"). 



