134 
Syngenesia. 
Hyp. Androscenium, Tutsan or Park Leaves ; with 
flowers having three pistils ; berried capsules, and 
double-edged shrubby stem ; not uncommon in woods, 
and with its large yellow flowers is a conspicuous orna« 
ment in the garden. 
Hyp. Quadra ngulu m, Square St John’s Wort ; is 
frequent on the banks of rivers and moist meadows, 
where it is easily distinguished by its specific charac- 
ter ; and Hyp. Perforatum, Perforated St John’s Wort, 
is common in hedges and woods, and is distinguished 
by its double-edged stem and obtuse leaves, marked 
with pellucid spots. 
CLASS XIX. 
S YNGENESIA* 
In this class the anthers are united into a tube, and 
the flowers are compound ; that is, each flower consists 
of a number of small flowers called florets. The struc- 
ture of the florets varies in different plants ; sometimes 
each floret is furnished with perfect stamens and pistil, 
and brings its seed to maturity ; sometimes the florets 
of the disk are perfect or united, while those of the 
margin have pistils only, but they all produce perfect 
seed ; sometimes the florets of the disk are perfect or 
united, but those of the margin have neither pistils nor 
stamens ; in other cases the florets of the disk have 
stamens only, and those of the margin have pistils only ; 
and in others, several flowers, either simple or coni' 
