Mulberries. 325 



gpowtli being very rapid and the leaves large. It is also said to be 

 valuable for silk. In Texas it blooms so early that the fruit is 

 often lost. 



Tw^o mulberries have recently been sent me from the University 

 of California imder the name of Lhoo — originally, spelled Lhou — 

 and Nagasaki. These, I think, belong with the multicaulis group, 

 although they suggest Morns Japonica. Bureau refers some of the 

 Chinese Lhou mulberry to Morus alba var. macrophylla (Moras 

 Moretti), and some of it to this multicaulis group. At the Univer- 

 sity of California the climate is said to be too cold to allow these 

 mulberries to fruit. These oriental varieties are grown chiefly for 

 feeding silk worms. 



3. The Japanese Group. — Morus Japonica, Audibert. — {M. 

 alba var. stylosa of Bureau). 



Leaves usually large, dull, rather thin, long-pointed, the i-ounded 

 teeth very large and deep, or the margin even almost jagged, the 

 leaves upon the young growth usually deeply lobed. Tliis species 

 has been introduced veiry lately and it has not yet fruited in this 

 country, so far as I know. It is tender in the north when young. 

 The fruit is described as short-oblong and red. 



4. The Black Mulberry Group. — Morus nigra, Linn. 



Leaves dark dull green, rather large, tapering into a promineoat 

 point, commonly very rough above, usually not lobed, the base 

 equal or very nearly so upon both sides, the teetli rather small 

 and close, the branches brown. The black mulberry is a native 

 of Asia, probably of Persia and adjacent regions. It is the species 

 which is cultivated in the Old World for its fruit. In America 

 it is very little grown. It is not hardy, except in protected 

 places, in New England and New York. The Black Persian 

 mult>eny of the south and of California is undoubtedly tliis species. 

 This variety, with others, was inserted in the fruit ca-talogue 

 of the American Pomological Society for 1875. It was dropped 

 from the catalogue in 1883, and \\m not been Inserted since. It 

 is named in Wickson's " California Fruits," 1889, without par- 



