The vegetable system. 
119 
Flowers are very large and yellow ; they have greatly the afpedt of 
fomc of the fmaller Sunflowers, The Stalks add to the beauty j for 
they are fpotted elegantly with a deep crimfon. 
GENUS X. 
TWIN-WEED. 
G E M E L L A. 
Charafler of the Genus. 
The Cup has two rows of difllmilar Scales, rifing as 
twins, near each other, and from one flefhy Bafe. 
The Rays of the Flower are five, 
Plate 36** Fig. 0 ab c* 
Of this Genus there is but one known Species j a tall, upright, 
and, if not an elegant, at leaft a mofl: Angular Plant. 
WINGED TWIN-WEED. 
Chara£ler of the Species. 
The Leaves are winged. 
Plate 36 ** a b. 
This is an Annual, native of damp ground in Penfylvania, and 
other parts of North-America j and flowers with us in AuguA. The 
Plant is two feet and a half high : it has an eredt firm Stalk, with 
thick joints, and deep furrows j naturally of a faint green, but 
ufually funburnt : and thence tinged red or brown. The Leaves are 
placed oppoAte ; each is compofed of two or three pairs of Leafits 
with an odd one at the end : thefe are of a frefh green, fmooth and 
bright, and have the Footflalk edged. The Flowers are numerous 
but fmall : they crown the tops of the Stalk and Branches in an 
irregular manner ; and confifl: each of a yellow Difk, and Ave white 
Rays. The Seeds fland Arfl: eredt, in a kind of cylindric column ; 
but afterwards, as they dry and harden, they diverge and form a 
loofe round ball. Their continuance in the columnar form is fo long, 
and their fpreading afterwards is fo uncertain, that they fhew in an 
ill 
