EUCALYPTUS TREES. 467 
Benincasa cerifera, Savi. —India. This annual 
plant produces a large edible gourd, which in an 
unripe state forms part of the composition of many 
kinds of curry. 
Berberis Asiatica, Roxburgh.--Himalaya. One of 
the best among numerous species with edible berries. 
Among these may specially be mentioned B. lycium, 
Royle, and B. aristata, Candolle, which also yield val- 
uable yellow dye-wood (Dr. Rosenthal). 
Berberis Darwinii, Hooker. — Chiloe and South 
Chile. Considered one of the most handsome of all 
shrubs for garden-hedges. Several other evergreen 
Berberry shrubs serve the same purpose. 
Betula lutea, Michaux.—The yellow or gray Birch 
of North-east America. Adapted for moist forest 
land. In size and most other respects similar to B. 
lenta. 
Bongardia Rauwolfi, C. A. Meyer.—From Greece 
through Turkey to the Caucasus. <A perennial herb, 
the leaves of which are utilized like culinary sorrel. 
Boswellia papyrifera, A. Richard.—Morocco, Nubia, 
and Abyssinia, forming entire forests about Bertat on 
the Atlas. This tree exudes a kind of olibanum resin 
and represents apparently one of the hardiest species 
of this and allied genera. 
Brassica juncea, J. Hook and Thoms. (B. Willd- 
enowii, Boiss Sinapis juncea, Linné.)—From Middle 
Africa to China. According to Colonel Drury, culti- 
vated all over India for sarepta mustard-seeds ; also a 
good salad-plant. 
Brassica Chinensis, Linné. —China and Japan. 
Serves, like the following, for cabbage, and may in 
cultivation produce new varieties. B. cretica, Lam., 
a woody, Mediterranean species. 
