EUCALYPTUS TREES. 393 
zone of North America. <A perennial herb. The ten- 
der varieties, particularly the Spanish one, serve as 
pleasant, acidulous vegetables, but must be used in 
moderation, as their acidity, like that of the species 
of Oxalis (Wood-sorrel), depends on binoxylate of 
potash. 
Rumex scutatus, L.—The French Sorrel. Middle 
and South Europe, North Africa, Orient. Also pe- 
rennial, and superior to the foregoing as a culinary 
plant. Both and the following are of use against 
scurvy, and most easily reared. 
Rumex vesicarius, L.—South Europe, Middle Asia, 
North Africa. An annual herb, of similar utility as 
the two former ones. 
Ruta graveolens, L.—The Rue. Mediterranean 
countries and the Orient. The foliage of this acrid 
and odorous shrub, simply dried, constitutes the Rue 
herb of medicine. The allied R. silvestris, Mill., is. 
still more powerful in its effect. The plants and 
others of the genus contain a peculiar volatile oil, and 
a glycosid (Rutin). 
Sabal Adansoni, Guernsent. — Dwarf Palmetto. 
South Carolina, Georgia, and Florida. A stemless 
Fan-palm, with the two following and Chamerops 
attaining the most northerly positions of any Ameri- 
can palms. £ 
Sabal Palmetto, Roem. and Schult.*—Extends from 
Florida to North Carolina. The stem attains a height 
of 40 feet. This noble palm ought to grow on our 
sandy coast-tracts, as in such it delights to live. 
Sabal serrulata, R. and S.—South Carolina Geor- 
gia, and Florida. The stem grows to 8 feet high. 
The leaves can be used for cabbage-tree hats and oth- 
er purposes, for which palm-leaves are sought. 
