NAT. ORDER. — CAMPANULACEiE. 65 



setting on of these 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 A'ery 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 will continue in bloom a month exhibiting great beauty. 

 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. 



Campanxda 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 

 pcntagonia ; the calyx is composed of five narrow leaves, which 

 spread open, turn buck, 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 ; tiie corolla wiieel- 

 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 

 Jias an annual root ; the stems and germs smootli ; 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 

 ■wliite, single blue, and with double blue flowers. 



Campanula fruticosa. Shrubby Cape Bell-flower. This is a 



