186 POPULAR FIELD BOTANY. 
The leaves are ovate, pointed, and toothed. Upper ones 
narrower. Stem erect, and about a foot and a half hgh. It 
has derived its name of Hnchanter’s Nightshade either from 
the beauty of its flowers, or from its growing in damp places 
where plants used for incantations were found. 
Circma ALPINA. Alpine Enchanter’s Nightshade. This 
species is very like the last, only smaller. The flowers are 
the same, but appear rather later. It is found principally 
in woods and coppices in stony places, especially by the 
sides of lakes in the north of England. 
DIANDRIA. MOoNOGYNIA. 
PETALOIDES. PISTIACE. 
, 
LEMNA. (Dvckwesrp.) 
Generic Character. ‘Fronds (which are the parts lying on 
the water) without distinct stems or leaves, floating on the sur- 
face of the water, and increasing not only by seeds but far more 
abundantly by gemme or buds, concealed in lateral clefts of the 
parent frond, which growing out on two opposite sides into new 
plants, and these again producing offspring in the same way, 
while still attached to their parent, present a most curious ap- 
pearance.” 
