( io ) 



CLASS III. 

 TRIANDRIA. 



-" The penetrative Sun, 

 His force deep-darting to the dark retreat 

 Of vegetation, sets the steaming power 

 At large, to wander o'er the vemant earth, 

 In various hues ; but chiefly thee, gay Green r 

 Thou smiling Nature's universal robe ! 

 United light and shade! where the sight dwells 

 With growing strength, and ever-new delight." 

 THOMSON. 



I. MONOGYNIA. 



* Flowers superior, 



14. VALERIAN A. Corolla 5-cleft, protuberant at the base; seed- 



1, with a feathery radiating crown. 



15. FEDIA. Corolla 5-cleft, protuberant at the base ; capsule 



crowned with the toothed calyx, without valves, of 1-3 

 fertile cells ; seeds solitary. 



16. IRIS. Corolla in six deep unequal segments, alternately re- 



flexed ; stigmas two-lipped, like petals. (Leaves sheathing, 

 sword-shaped.) 



* * Flowers inferior ', chaffy. Seed 1. (Rush or grass like plants.) 



-17. SCHCENUS. Corolla none; spike of very few flowers ; glumes 

 2-ranked, with many smaller empty external ones ; style 

 simple at the base, deciduous. 



