The VEGETABLE SYSTEM. 75 
This is an Annual, native, as it is thought, of Canada; but I 
fufpedt it only degenerated from fcattered feed of the Cos Lettuce : 
it is four feet high : the Leaves are of a frefh green : the Flowers are 
yellow. 
5. WHITE RIB’D LETTUCE. 
Plate 1 19. Fig. 5. 
Ch a rafter of the Species. Laftuca faligna. 
The Leaves have the great rib white, and are thorny at 
the Back and they are fpread at the Bufe. 
Fig. 5, a. 
This is a Biennial, native of the warmer parts of Europe, and 
flowers in Auguft : the Staik is five feet high, and brown, the 
Leaves are deep green : the Flowers are yellow. 
6. PERENNIAL LETTUCE. 
Plate 1 1 9. Fig. 6. 
Charafter of the Species. Laftuca perennis. 
The Leaves are linear, deeply Enuated in the winged 
manner, and the jaggs are cut again. 
Fig. 6. ah. 
This is a Perennial, native of France and Germany, and flowers 
in Auguft : the Stalk is ufually reddifh : the Leaves are deep green ; 
and the Flowers are yellow- 
G E N U S* V. 
HAWKWEED. 
H I E R A C I U M. 
Charafterof the Genus. 
The cup is cylindric, but rounded at the Bafe : its Scales 
are very numerous and unequal, but all linear and 
pointed; and they are laid longitudinally one over 
another. 
Plate 102. 0 cr-b. 
It 
