JULY. 317 
is sald to have covered the ground immediately after the 
great fire, but how it should have spread to so great a degree, 
in a short time, naturalists have not been able to explain. 
Its leaves are runcinate, as well as the above. Flowers yel- 
low, pods erect, and two inches long, which make it easily 
distinguished. 
StsyMBriuM SopHra. fine-leaved Hedge Mustard. 
Leaves doubly divided, slightly hairy. Petals shorter than 
the calyx, flowers small and yellow. Pods very slender, erect, 
and a little spreading from the stalk. It is a frequent 
species in waste places. 
DIADELPHIA. DECANDRIA. 
CALYCIFLOR&. FaBACES. 
GENISTA. (GREEN-WEED.) 
Generic Character. See page 161. 
Genista TINCTORIA. Dyers’ Green-weed, or Wood wazen. 
A much larger species than the two mentioned in May, 
frequent in thickets and borders of fields. The stem has no 
thorns, and stands about two feet high, with narrow, smooth, 
rather distant leaves. Flowers pale yellow, in a small spike, 
