LINNEAN CLASSES AND ORDERS. 33 



1 . Monogynia is subdivided thus : 



"Flowers inferior, monopetallous, regular; 

 Ex. Privet, (Ligustrum.) 



* Flowers inferior, monopetallous, irregular, 



seeds enclosed in a pericarp : 

 Ex. Speedwell, (Veronica) and Butter- wort, (Pin- 

 guicula.) 



^Flowers inferior, monopetallous, irregular, 

 seeds naked : 

 Ex. Water-liorehound, (Lycopus) and Clary, (Sal- 

 via.) t 



'^Flowers superior : (page 17, pi. 11.) 

 Ex. Enchanter's-niglitshade, (Circaea.) 



* Flowers apetallous (without petals :) 

 Ex. Duck-weed, (Lemna.) 



2. Digynia, consists only of the sweet-scented 



Vernal-grass, (Anthoxanthum.) J 



3. Trigyma.^ 



t Lycopus and Salvia are the natural allies of the plants m Class 

 Didynainia, but are separated from tliem on account of the num- 

 ber of their stamens. 



X The grasses in general belong to the Class Triandria ; but Anthox- 

 anthum having only two stamens is separate from them. 



Of those orders to which an o is affixed, no instances occur in the 

 British Flora. 



F 



