LIXX^AX SYSTEM. 403 



Order 7. Heptagynia, those with seven styles. Xo examples 



among British Plants. 

 Order 8. Octogijnia, those with eight styles. No examples 



among British Plants. 

 Order 9. Enncagynia, those Avith nine styles. Xo examples 



among Bi'itish Plants. 

 Order 10. Decagynia, those with ten styles. No examples 



among British Plants. 

 Order 11. Dodecagynia, those, with eleven or twelve styles, as in 



the common House-leek. 

 Order 12. Polygyjiia, those with more than twelve styles, as in 



the Eose, Buttercup, Strawberry {fig. 591), Ane- 

 mone, and Clematis. 



The 14th Class, Didynamia, is divided into two orders, the 

 characters of which are derived from the structiu'e of the seed- 

 vessel, namely : 



Order 1. Gyinnospcrriiia. This term is derived from the Greek, 

 and signifies 7i«A-ec? S(ec7s, because the single-seeded 

 fruits of these plants were mistaken by Linnseus for 

 seeds. This order includes those plants in which 

 the fruit consists of achsenia, of which there are 

 commonly four, as in the Dead-nettle and other 

 Labiate Plants. 



Order 2. Angiospermia. This includes those plants in which 

 numerous seeds are enclosed in an evident seed- 

 vessel or pericarp, which is commonly two-celled 

 as in the Poxglove and Snapdragon, {t'igs. 612 and 

 694.) The name is derived from the Greek, and 

 means seids in a vessel. 



The 15th Class, Tctr adynamia, is also divided into two 

 orders, which are in like manner characterised by the nature ot 

 the fruit, as follows : — 



Order 1. Silicidosa ; the fruit a Silicula or short pod, as in the 

 Shepherd's Purse, Sea Kale, and Scurvy -grass. 

 {Fig. 697.) 



Order 2. SiUqtiosa ; the fruit a Siliqua or long pod, as in Mus- 

 tard, Stock, and Wallflower. {Fig. 668.) 



The orders of the 16th, 17th, and 18th Classes are distin- 

 guished by the number of stamens, and have names, therefore, 

 similar to the first thirteen Classes. The number of stamens 

 is, however, never less than three. Thus : — 



Order 1. Triandria, with three stamens, as in Tamarind. 

 Order 2. Pentandria, with five stamens, as in Erodium and 



Passi flora. 

 Order 3. Hexajidria, with six stamens, as in Fumitory. 

 DD 2 



