The VEGETABLE SYSTEM, 
74 
This is a Biennial, native of our clay banks, and flowers in Au- 
gufl: : it is five feet high : the firft, or radical Leaves, are undivid- 
ed : thofe on the Stalks are more or lefs jagged : the Flowers are 
fmall, and of a pale yellow. They did ill who affixed poifonous to 
this Plant : I have found it a fafe, tho’ powerful Narcotic. 
2. SHORT-LEAV’D LETTUCE. 
Plate 11S. Fig. 2. Garden Lettuce. 
Chara&er of the Species. Laduca fativa. 
The Leaves are thornlefs, fliort, and obtufe : the Flow ri - 
ers grow in fpreading clufters. 
Fig. 2. a b. 
This is an Annual raifed in our gardens with infinite variety; 
but its origin is from Italy, where there are wild Plants now, very 
like what we call the common Cabbage Lettuce, from thefe have 
arifen the better Cabbage Lettuces, and from thofe the Silefia, Cos, 
and all the other varieties, by faving Seed from Plants of a peculiar 
afpedt. This, in its wild ftate, is two feet high : the Stalk is flen,- 
der ; the Leaves are of a yellowifh green, and the Flowers are pale 
yellow. 
3” OAK LETTUCE. 
Plate 1 1 9. Fig. 3. 
Chara&er of the Species. La&uca quercina. 
The Leaves are thornlefs, and deeply finuated in the 
winged manner. 
Fig. 3. a. 
This is a Perennial, native of the northern parts of Europe, and 
flowers in July and Auguft. The Stalk is pale : the Leaves are of a 
a faint green, and the Flowers are yellow. 
4. SWORD-LEAV'D LETTUCE. 
Plate 119. Fig. 4. 
Chara&er of the Species. La&uca Canadenfis. 
The Leaves are fword-fhaped, and ferrated at the edges, 
but deftitute of thorns. 
Fig. 4. ab. 
This 
