CHAP. I.] THE GENUS CLEMATIS. 23 



Anemone, except in the involucre, which is so 

 very like a green calyx, from the manner in 

 which it enfolds the flower in the bud, as scarcely 

 to be distinguished. I could not, indeed, be 

 persuaded that this calyx-like covering was an 

 involucre, till I turned back the apparent sepals, 

 and found that their glossy surface was within : 

 I also found that there was a very small portion 

 of the stem between them and the flower, a 

 circumstance which always distinguishes an in- 

 volucre from a calyx, the latter forming part of 

 the flower, and being always in some manner 

 attached to the receptacle. 



THE GENUS CLEMATIS. 



This genus resembles the Anemone in having 

 only one covering, an ornamental calyx, to its 

 seed-producing organs. It has not, however, 

 any distinct involucre ; though in one species, 

 C. calycina^ there are two bracts, or floral leaves, 

 which bear some resemblance to one. The 

 flowers of the different species vary considerably 

 in form, colour, and the number of the sepals ; 

 C. calydna and C. viticella having four, C.fiorida 

 six, C. vitalba five, &c. All the species agree, 

 however, in the seeds, which are produced 

 singly, each in a separate awned carpel, which 

 does not open, but drops with the seed, and is 

 sown with it. These carpels, which are common 



