20 PRAGflCAL BOTANY. 



(Number of stamens in each flower.) Class. 



1 I. MONANDBIA. 



2 II. DiANDKIA. 



3 HI. Teiabdeia. 



4 IV. Tetkandeia. 



6 Y. Pentandeia. 



6 VI. Hexandeia. 



7 VII. Heptandeia. 



8 VIII. OCTANDEIA. 



9 IX. Enneandeia. 



10 X. Decandeia. 



11-19 XI. DODECANDEIA. 



ion the calyx... XII. Icosandeia. 

 on the recep- 

 tacle XIII. Poltandeia. 



*** Of nnequal length, if 4 



or G — namely, if 4 : 2 



longer and 2 shorter XIV. Didtnamia. 



if 6 : 4 longer and 2 shorter XV. Teteadtnamia. 

 ** United with one another, 

 a, by theif filaments : 



f into 1 set or tube XVI. Monadelphia. 



f f into 2 sets or bundles .... XVII. Diadelphia. 



f f f into 3 or more sets XVIII. Polyadelphia. 



1), by their anthers into a ring. XIX, Syngenesia. 

 * United with the pistils XX. Gykandeia. 



B. Stamiens and pistils in separate flowers : 

 a, of the same individuals. . . XXI. Moncecia. 

 &, of different individuals... XXII. Dicecia. 

 c, some flowers perfect, oth- 

 ers staminate or pistillate 

 — in the same or in dif- 

 ferent individuals XXIIL Polygamu. 



