cHAP.x.] ARTOCARP^. 169 



it does not part from it so freely as in the rasp- 

 berry ; and the little nuts, or seeds as they are 

 called, are found in the centre of each juicy 

 globule. The leaves are simple, entire, and 

 rough on the surface. 



The white Mulberry (Morus alba) differs from 

 the common kind in the fruit not beino^ eatable ; 



CD ' 



as the calyxes of the female flowers never be- 

 come juicy. The leaves are, however, much 

 smoother and of finer texture than those of the 

 black mulberry, and they are principally used 

 for feeding silkworms, for which those of the 

 black mulberry are not so good. 



The red Mulberry (M. rubra) is an American 

 species, with leaves too rough to be good for 

 silkworms, and very indifferent fruit. The Con- 

 stantinople and Tartarian Mulberries are sup- 

 posed to be only varieties of M. alba, though 

 their fruit is good to eat, and the latter has 

 lobed leaves. 



The Paper IMulberry {Broussonetia papyri- 

 fera) has the male and female flowers on diffe- 

 rent plants. The male flowers are produced in 

 pendulous catkins, and the calyx has a short 

 tube before it divides into four segments ; each 

 flower is also furnished with a bract, but in 

 other respects their construction is the same as 

 that of the other flowers of the order. The 

 female flowers have also a tubular calvx, and 



