W | 
Ile Monocotyledons 
&, Leaves mostly with parallel veins; flower parts: mostly 
in 3's, the perianth proper often wanting, however; 
cotyledon 1; herbaceous plants, often aquatic, commonly 
wht.) of wet situations. 
Dose floating plants forming a green coat on the ; 
surface of quiet water, consisting of oval, disc- oe 
4 shaped podies, 2-5 mm. lonz,to the underside of which q 
are attached one or more rootletse Lemnaceae \)—) 
0jb Plants rooted in earth but often growing in water, 
4 sometimes wholly submerged, 
