GENERA OF CLASS XI. DODECANDRIA. 



CHAP. XIV. 



OF THE ELEVENTH CLASS, DODECANDRIA. 



THIS chss, notwithstanding its title, which is expressive of 

 twelve stamina, consists of such plants as bear bisexual flowers, 

 furnished with any number of stamina, from twelve to nineteen 

 inclusive*. The orders are six, including forty-one genera, viz. 



Order 1. Monogynia, comprehends such plants as have but 

 one style. This order contains thirty-one genera, which fail un- 

 der the following sections : 1 . Corolla none, of which there are 

 three genera, viz. Asarum (<2Stfr«&<2cc&)...BoccoNiA...STERcuLARiA<, 

 2. Corolla cut in four divisions, of which there are seven genera, 

 viz. Rhizophora...Garcinia (mangostan) ...Cratveva...Halesia 

 ...ApACTis...DoDECAS...and Crenjea. 3. Corolla five-petalled, 

 of which there are thirteen genera. ..Tomex... EurYa... Triumfet- 

 ta...Peganum...Kleinhofia... Nitraria...Aristotelta...Gran« 

 geri a . . . Vat i c a . . . H u d so n i a . . . C an e ll a . . . Po rt v l a cc a ( purslane) 

 ...Talinum. 4. Corolla six -petalkd , of which there are^e ge- 

 nera... Lytrum (loosetrife) ...Cuphea...G 1 noria...Blakea...Aga- 

 tho phylum. 5. Corolla seven-petalled, of which there is one 

 genus. ..Befaria. 6. Corolla eight-cleft, of which there is one 

 genus... Bassia. 7. Corolla ten-petalled, of which there is one 

 genus... Decumaria. 



Order 2. Digynia, comprehends such plants as have two 



* Tormentilla is an exception, belonging to the next class, though, it has but six- 

 teen stamina. The characters of the fructification'm the next "class, over-rule tlve 

 number of the stamina expressed in its title. Author. 



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