150 PRINCIPLES OF BOTANY, ETC. 
these flewers as a Polygamy, (polygamia), and pre» 
fixes this word to the name of each Order in which 
the compound flowers are contained ; for example, 
Polygamia aquales, when all the florets which a 
compound flower contains are hermaphrodites, and 
similar in form, whether they be ligulate or tubu- 
lar, fig. 85, 143. | 
Polygamia superflua, when the compound flower is 
radiate, the disc bearing hermaphrodite florets, and: 
the ray, fertile florets. 
Polygamia frustranea, when the compound flower 
is radiate, the disc consisting of fertile, hermaphro- 
dite florets, and the ray of barren female florets. 
Polygamia necessaria, when the compound. flower 
is radiate, the disc consisting of barren hermaphro- 
dite florets, the ray of fertile female florets. 
Polygamia segregata, when in a compound flower, 
besides the commen perianth, each floret is furnish- 
ed with its own particular calyx. 
Monogamia is an Order containing all the plants 
which according to strict ee belong to this class, 
though they are not compound flowers. 
The plants of the 21st and 22d classes, as we 
have said already, are divided into Orders accord- 
ing to the number of the stamina; but besides these, 
there are two orders taken from the connection of 
the filaments and antherce, namely, Monadelphia and 
Syngenesia. ‘The last Order of both classes is called 
Gynandria; not because in the plants which belong 
to it, the stamina stand upon the style; but because 
in the male flowers there’ is a production resembling 
a style to which the stamina are attached. ‘This 
produc- 
