NAT. ORDER. CAMPANULACEiE. 
65 
setting on of the.se leaves, spring out of the peduncles, those on the 
lower part of the stem and branches four or five inches long, dimin- 
ishing gradually in length upward, and thus forming a sort of pyra- 
mid ; the flowers are very large, and make a fine appearance ; they 
are smooth, and the segments turn back at the end ; the flowers 
appear in the beginning of June, and if the season should not prove 
very hot, they wnll continue in bloom a month exhibiting greatbeauty. 
It is a native of Germany, but is found in various parts of the United 
States. There are varieties, with blue, purple, white, striped and 
double flowers. 
Campanula speculum. Venus's Looking-glass. This species is 
an annual plant ; the stalks are slender and rise from one to two 
feet in height ; the flowers are of a beautiful purple, inclining to a 
violet color, (sometimes pale, purple or white,) and in the evening 
fold up into a pentagon figure, whence it is sometimes called Viola 
peritagonia ; the calyx is composed of five narrow leaves, which 
spread open, turn back, and are much longer than the petals ; these 
remain on the top of the primatic seed-vessel, which is filled 
with small angular seeds ; the stem is tender, quadrangular, 
naturally procumbent, branched from the bottom at very great 
angles ; the leaves sessile, obovate, and waved about the edges ; the 
flowers axillary, erect, on very long peduncles ; the corolla wheel- 
shaped, and so deeply five-cleft that the segments, which are ovate, 
scarcely cohere. It is a native of the Southern countries of Europe, 
flowers from May till September. There are varieties with bright 
blue flowers, with white flowers, and with pale purple flowers. 
Campanula Americana. American Bell-flower. This species 
has an annual root ; the stems and germs smooth ; the leaves acumi- 
nate ; the flowers three or more from each axil or bracte ; the 
corollas small ; the style longer than the corolla. It is a native of 
Pennsylvania, and flowers in July. There are varieties with single 
white, single blue, and with double blue flowers. 
Campianula fruticosa. Shrubby Cape Bell-flower. This is a 
