EUCALYPTUS TREES. 373 
by sheep, eligible for cold and arid localities, and de- 
serving naturalization on our alpine pasture-ground. 
Other perennial species exist near the Mediterranean 
Sea, on the Atlas, the Caucasus, and the Indian High- 
lands. P. pabularia is regarded by some as the Sil- 
phium of Arrianus. 
Pringlea antiscorbutica, W. Anderson and R. Br.* 
—The Cabbage or Horse Radish of Kerguelen’s Is'- 
and. ‘The perennial, long roots taste somewhat like 
Horse-radish. The leaves in never-ceasing growth 
are crowded, cabbage-like, into heads, beneath which 
the annual flower- stalks arise. The plant ascends 
mountains in its native island to the height of 1,400 
feet, but luxuriates most on the sea-border. To arc- 
tic and other antarctic countries it would be a boon. 
Probably it would live not only on our shores, but also 
on our Alps. Whalers might bring us the roots and 
seeds of this remarkable plant, which seems to have 
never entered into culture yet. Not even its flowers 
in a perfect state are known. The plant was used by 
the celebrated Captain Cook and all subsequent navi- 
gators, touching at yonder remote spot, as cabbage, 
and it proved to possess powerful properties against 
scurvy. Dr. Hooker observes that Pringlea can sec- 
tionally be referred to Cochlearia. ‘The whole plant 
is rich in a pungent, volatile oil. Through culture 
important new culinary varieties may likely be rais- 
ed from this plant. The taste of this vegetable in 
its natural growth is like mustard and cress, and the 
Kerguelen’s Land Cabbage, when boiled, proved a 
wholesome and agreeable substitute for the ordinary 
cabbage. 
Prosopis dulcis, Kunth.—From Mexico to the south- 
