I 
I 
54 
the monstrous appearance of the fructification, and con- 
tains the natural tribe of orchises {orchideoe), and the 
beautiful tribe passiflora (Passion-Jlower). 
V. Classes derived from the consideration of sepa- 
ration. 
Class XXL MoNfECiA, from /aovo?, monos, owe, and 
e<xof, OIK OS, a house. 
Class XXII. DicEciA, from ^-f, dis, iwo^ and oi^s, 
oiKos, a house. 
Class XXIII. POLYGAMIA, from woXyj, POLUS, 
many, and ya/xoj, gamos, marriages. 
In Classes XXI. Moncecia, and XXII. Dkecia, 
we find no complete flowers at all, (flowers furnished with 
stamina and pistilla in the same corolla) but either sta- 
meniferous, or pistilliferous flowers, and as these are 
placed either upon the same plant, or on different plants 
of the same species, we have the characters of these 
classes. As in these unisexual plants, the stamens and 
pistils are situated at a distance from each other, so that 
the facility of an intercommunication between them is 
certainly less than in the bissexual flowers, where they 
are situated within the same cover (calyx or corolla), 
Nature has wisely ordered it, that in these particular 
plants they shall, in general, make their appearance 
before the full evolution of the leaves, so that the fecun- 
dation is not hindered by the intervention of the leaves. 
This is known to be the case in the Mulberry, the 
MisLETOE, the Alder, the Birch, the Horneeam, 
