vl PREEXECECH.

In the next two Claſſes, nat only the number of lamens are to be obſerved, but the reciprocal proportions in reſpect to height.

XIV. Two PoweERs, Didynamia. Four Sta- mens, of which two are lower than the other two; as 15 ſeen in the two firſt Figures of No. x1v.

XV. FovR Po wERs, Teiradynamia. Six Sta- mens; of which four are taller, and the two lower ones Oppolite to cach other;- as 18 ſeen in the third

Figure of the upper row in No. xv.

The five ſubſequent Claſſes are diſtinguiſhed not by the number of the males, or ſtamens, but by their union or adheſion, either by their anthers, or filaments, or to the female or piſtil.

XVI. ONE BROTHERHOOD, Movadelplia. Ma- ny Stamens united by their filaments into one company; as in the ſecond Figure below of No. SVE

XVH. Two BROTHERHOODS,. Many Stamens united by their filaments into two companies: as in the uppermoſt Fig. No. xvit.

XVIII. MaxY BROTHERHOODS, Polyadelphia. Many Stamens united by their filaments into three

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