24.6 POPULAR FIELD BOTANY. 
DIADELPHIA. DECANDRIA. 
CALYCIFLOR2. FAaBACEs. 
TRIFOLIUM. (Trerott.) 
Generic Character. See page 163. 
Trirotium procumBENS. Hop Trefoil. This is a pretty 
species and very common. Yellow flowers in a small head, 
very thick together, and like the flower of the Hop, but 
more minute, and yellow instead of green. The leaves have 
stalks, leaflets rather heart-shaped. There is a smaller 
species. 
TRIFOLIUM FILLIFORME, Lesser Yellow Trefoil, like the 
last in general appearance, but much smaller, and the head 
of the flowers formed of a less number. Leaves almost 
without stalks. It is frequent on roads and dry pastures. 
DIADELPHIA. DECANDRIA. 
CALYCIFLORZ. FABACE. 
MEDICAGO. (MepIck.) 
Generic Character. See page 165. 
Mepicaco raucoata. Vellow Sickle Medick. The flowers 
