FLORA'S LEXICON. 237 



These 24 classes have been recently reduced to 20, which may 

 be thus arranged with examples under each. 



TABLE OF THE CLASSES. 



Class. Stamens in each Flower. Examples. 



1. Monandria • - one Mires-tail, Parsle/piert. 



2. Diandria • • - two Privet, Sage. 



3. Triandria - - three Yellow Flag, the Grasses. 



A. Tetrandria • - four, all of the same length Plantain, Scabious. 



ilria - - five, the anthers not united Honeysuckle, Primrose. 



6. Hexandria - - six, all of the same length Snoxvdrop, Asparagus. 



7. Heptandria - - seven Horse Chestnut. 



S. Octandria • • • eight Mezereon, Heath, Willowherb. 



9. Euneandria - nine Bay Tree, Flowering Rush. 



10. Decandria • - ten, the filaments not united Campion, Piuk, Arbutus. 



1 1. DodecanJria - 12 to 19 Houseleek. 



12. Icosandria - - more than 12, fixed to the calyx or petals - • Hawthorn, Plum, Rose. 



13. Polyandria - - 20 to 1000, fixed to the receptacle Poppy, Larkspur, Anemone. 



14. Didynamia - - four, 2 long and 2 short Ground Ivy, Foxglove. 



15. Tetradynamia six, 4 long and 2 short Cabbage, Wallflower. 



16. Monadelphia- the filaments united Mallow Geranium. 



17. Diadelphia - - in 1 or 2 sets, blossoms butterfly-shaped - - - Pea, Furze, Broom. 



18. Polyadelphia - in 3 or more sets Orange, St. John's Wort 



19. Syngenesia - - 5 stam. anthers united, flowers compound - - Coltsfoot, Sunflower, Thistle. 



20. Cryptoganiia - flowers ^conspicuous Fern, Moss, Liverwort, Sea- Weeds, 



Mushrooms. 



A knowledge of the Orders may be very easily attained, by 

 observing that, 



In the class Didynamia, they depend upon the seeds having a 



seed-vessel, or not. 

 Tetradynamia, upon the shape of the seed-vessel. 

 Syngenesia, upon the structure of the florets. 

 Cryptogamia, upon the natural assemblages of plants resem- 

 bling each other. 

 And that in all the other classes, excepting Monadelphia, Dia- 

 delphia, and Polyadelphia, they depend upon the number of pis- 

 tils only. In determining the number of pistils, count the styles, 

 as they appear at their bottom part, or base ; but if the summits 

 are not supported upon styles, then count the summits. 

 Recapitulation of the Classes, with their attendant Orders and 



familiar examples. 

 Monandria. 



Order Monogynia (1 pistil) Common Stonewort. 

 Digynia . . (2 pistils) Water Fennel. 

 Tetragynia (4 pistils) Pondweed. 



