708 



ARBORETUM ET FRUTICETUM BRITANNICUM. 



M. subalba nervosa Hort. Leaves strongly marked with thick 

 . white nerves on the under side. 

 M. a. 7 itdlica Hort. M. italics Lodd. Cat. ed. 1836. Leaves 



lobed. The plant bearing this name in the Jardin des Plantes has 



the soft wood, or cambium, of the current 3'ear's shoots of a deep 



red, when the bark is removed. 

 t M. a. 8 rosea Hort., Lodd. Cat. ed. 18,36. The small white Mulberry; 



Miirier rose, Feuille rose, Fr. One of the kinds called in France 



a wild variety. 

 !lf M. a. 9 columbdssa Lodd. Cat. ed. 1836. Columba, Fr. Small 



delicate leaves, and flexible branches. 

 It M. a. 10 membrandcea Lodd. Cat. ed. 1836. Murier a Feuille de Par- 



chemin, Fr. Large, thin, dry leaves. 

 t M. a. 11 sinensis Hort. M. sinensis Hort.; M. chinensis Lodd. Cat. 



ed, 1836 ; the Chinese white Mulberr}', Amer. A large-leaved 



variety, 

 ^ M. a. 12^zm?'/a Nois. ? M. a. nana Hort. Brit. A shrub, seldom 



exceeding 10 ft. high. 



Other Varieties. All the above sorts are in the arboretum of Messrs. 

 Loddiges ; but in the catalogues of foreign nurserymen there are several 

 other names, most of which will be found enumerated and described in our 

 1st edition, including M. constantinopolitana Poir. (AI. byzantina Sieb.), 

 which we believe to be nothing more than a rather distinct variety of AT. alba. 



1382. .drus4lba. 



The white mulberry is readily distinguished from the black, even in winte 

 by its more numerous, slender, upright-growing, and white-barked shoots, 

 is a tree of much more i-apid growth than AI. nigra, and its leaves are ni| 

 only less rough and more succulent, but they contain more of the giutinoij 

 milky substance resembling caoutchouc, which gives tenacity to the silk pri 

 duced by the worms fed "on them. The rate of growth of young plants 1 

 much more rapid than that of M. nigra ; plants cut down producing shoq 

 4 or 5 feet long in one season ; the tree attaining the height of 20 ft. in hj 

 or six years ; and, when full grown, reaching to 30 or 40 feet. Its durati 

 is not so great as that of AI. nigra. The white mulberry is more tender tii 



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