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CLASS MONCECIA. 
LECTURE XXXVII. 
CLASS XIX MONCECIA, AND XX DICCECIA. 
In all the classes hitherto examined, we have found perfect flow- 
ers, that is, those which presented the two important organs on 
which the artificial system is founded. In the first ten classes, 
we had only to count the stamens to determine the class, and the 
pistils to ascertain the order. 
In the two next classes, we observed whether the stamens grew 
upon the calyx or the receptacle, and as before, counted the styles 
to ascertain the order. 
In the two next classes, each having two orders, we were guided 
by the comparative length of the stamens, and certain appearan- 
ces of the seeds, in one class, and of the seed vessel in the other. 
We next found two classes, where connexion of stamens by 
means of filaments, was the essential character, and whose or- 
ders depended upon the number of stamens. 
In the great class of compound flowers, we regarded chiefly 
the circumstance of united anthers ; the orders being founded 
upon certain circumstances relative to the little flowers, (florets,) 
which compose the whole flower. 
The class which was the subject of our last lecture, presented 
us with the stamens in a new situation viz. growing out from 
the pistil, and the orders were reckoned according to the number 
of these strange looking stamens, each one of which in general is 
formed of two masses of glutinous pollen. 
Our present inquiry is to be directed to two classes, in which 
the flowers are imperfect, or both stamen and pistil are not 
found in the same individual flower. The stamens are infertile 
and disappear without any fruit, the pistils contain the germ, and 
when fertilized by the pollen, produce the fruit. 
CLASS MONCECIA. 
The class Monrecia, (one house,) contains plants, where, upon 
the same root, we find some flowers containing only stamens, 
others only pistils. The orders in this class are determined 
by the number of styles or pistils. 
MONANDRIA. 
In the first order is the Bread-fruit-tree, (Atrocarpus,) which 
Recapitulation — Two classes to be considered — Class Monceeia, orders — 
Order Monandria — Bread-fruit. 
