I 
CLASS XXI. MONCECIA. 
(ONE HOUSE*) 
This class consists of diclinian (two bed) plants, (viz.) of 
such genera as have male and female flowers distinct and 
separate from each other, on the same plant, which Linnaeus 
also calls androgynous * plants. 
But it is to be observed, that florets contained within a 
common calyx, though agreeing in this disposition of the 
sexes, do not belong to this class 5 which caution is necessary 
to exclude several species of genera of the umbellate and com** 
pound flowers, which are sometimes androgynous , but have 
united antherae. There are also a few other plan'ts dispersed 
in the several classes, which properly belong to this class, but 
as they are only species agreeing with the generic character 
under which they are placed, they are suffered to remain ; as 
callitriche Verna 3 plantago unijiora , rumex spinosus, glycine 
monoica } arum triply Hum, mercurialis ambigua. 
This class contains eleven orders , 
Founded on the number, union, and situation of the stamina in the 
male flowers. 
ORDER I. MONANDRIA. 
(one male.) 
of 
Species in 
Genera; 
Growth, species. Native of 
Britain. 
1 Balanophora 
1 
2 Ceratocarpus 
h 1 Tartary 
3 Chara 
h 4 Europe 
Brit. 4 
4 Elateriuin 
h 2 Carthagena 
* See androgynous under Distinction of flowers* 
