312 APPENDIX. 



19. Syngenesia .. Anthers united into a cylinder; flowers 



compound. 



20. Gynandria. . . Stamens and pistils together. Ladies^ 



Slipper. 



21. MoncEcia .... Stamens and pistils in separate flowers, 



upon the same plant. Nettle. 



22. DioBcia Stamens and pistils in separate flowers, 



upon different plants. Hop. 



23. Polygamia . . Variously situated. 



24. Cryptogamia. Flowers inconspicuous. 



The names of the classes, which at first sight appear dif- 

 ficult, are formed of Greek words, expressive of the charac- 

 ters of each class ; and those of the first ten classes may be 

 easily remembered, by considering the word andria, as 

 meaning the same as stamens, and annexing it to the Greek 

 numerals. 



The names of the orders, like those of the classes, are 

 formed from the Greek numerals, but with the addition of 

 the word gynia, instead of andria ; so that when there is 

 but one pistil, the plant is said to be in the order monogy- 

 nia ; if there are two, digynia, &/C. 



Names of the Orders of Jir^t 13 Classes. 



Monogynia 1 pistil. 



Digynia 2 pistils. 



Trigynia 3 do. . 



Tetragynia 4 do. 



Pentagynia 5 do. 



Hexagynia 6 do. 



Heptagynia 7 do. 



Octagynia 8 do. 



Enneagynia 9 do. 



Decagynia ...... 10 do. 



Dodecagynia 12 do. 



Polygynia Many pistils. 



The 14th class has only two orders ; gymnospermia, in 

 which the seeds are naked at the bottom of the calyx ; and 

 angiospermia, in which they are enclosed in a seed vessel. 

 Examples of the first are spearmint, motherwort, and catmint, 

 and of the second, cow-wheat, toad-flax, and beech-drops. 



