s.

XI. TWELVE MALES, _Dodecandria_. Twelve Stamens.

The next two Classes are distinguished not only by the number of equal
and disunited males, as in the above eleven Classes, but require an
additional circumstance to be attended to, _viz._ whether the males or
stamens be situated on the calyx, or not.

XII. TWENTY MALES, _Icosandria_. Twenty Stamens inserted on the calyx or
flower-cup; as is well seen in the last Figure of No. xii. in the annexed
Plate.

XIII. MANY MALES, _Polyandria_. From 20 to 100 Stamens, which do not
adhere to the calyx; as is well seen in the first Figure of No. xiii. in
the annexed Plate.

In the next two Classes, not only the number of stamens are to be
observed, but the reciprocal proportions in respect to height.

XIV. TWO POWERS, _Didynamia_. Four Stamens, of which two are lower than
the other two; as is seen in the two first Figures of No. xiv.

XV. FOUR POWERS, _Tetradynamia_. Six Stamens; of which four are taller,
and the two lower ones opposite to each other; as is seen in the third
Figure of the upper row in No. 15.

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, _Monadelphia_. Many Stamens united by their
filaments into one company; as in the second Figure below of No. xvi.

XVII. TWO BROTHERHOODS, _Diadelphia_. Many Stamens united by their
filaments into two Companies; as in the uppermost Fig. No. xvii.

XVIII. MANY BROTHERHOODS, _Polyadelphia_. Many Stamens united by their
filaments into three or more companies, as in No. xviii.

XIX. CONFEDERATE MALES, _Syngenesia_. Many Stamens united by their
anthers; as in first and second Figures, No. xix.

XX. FEMININE MALES, _Gynandria_. Many Stamens attached to the pistil.

The next three Classes consist of plants, whose flowers contain but one
of the sexes; or if some of them contain both sexes, there are other
flowers accompanying them of but one sex.

XXI. ONE HOUSE, _Monoecia_. Male flowers and female flowers separate, but
on the same plant.

XXII. TWO HOUSES, _Dioecia_. Male flowers and female flowers separate, on
different plants.

XXIII. POLYGAMY, _Polygamia_. Male and female flowers on one or more
plants, which have at the same time flowers of both sexes.

The last Class contains the plants whose flowers are not discernible.

XXIV. CLANDEST