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is of this family, its edible fruit oval in shape and about 
the size of a plum, with an acid taste when fresh; the 
Dahurian buckthorn, growing wild from central Asia to 
the Amur region, and the purging buckthorn of Europe 
and western and northern Asia, the berries of which are 
medicinal, are here; from the juice of the ripe fresh 
berries of the purging buckthorn, mixed with alum, is 
made the pigment, known as sap-green or bladder green, 
used by water-color artists. Close to this is the linden 
family, represented by the genus Grewia. The mallow 
family, further along the path, is represented by speci- 
mens of the rose-of-Sharon (Hibiscus syriacus), from 
Asia, and often found escaped from cultivation in the 
eastern United States; many herbaceous representatives 
of this family may be found at the herbaceous grounds. 
Near the mallow family is the tea family, represented 
by the mountain Stewartia, from the southeastern United 
States; other members of the tea family, including the 
tea plant and the common camellia, may be found 
in conservatory range 2. Also near the mallows may 
be found the St. John’s-wort shrubs (Hypericum), with 
their showy yellow flowers. Farther on, where the path 
bends to the left, is the tamarix family, represented by 
several species of tamarix, Old World plants. Next comes 
the mezereon family, having as a representative the 
leather-wood or moose-wood (Dirca), of the eastern parts 
of North America; the name leather-wood refers to the 
very tough inner bark; the bark is a violent emetic; the 
daphnes are of this family, and here will be found the 
garland-flower, the spurge flax, and the Chinese daphne. 
Some distance from the path and opposite the Woodlawn 
Road entrance, is the oleaster family, including several 
species of oleaster, the buffalo berry, and the sea-buckthorn, 
a native of Europe and Asia, the berries of which are acrid 
and poisonous; the berries of several of the species of oleaster 
are edible; the buffalo berry, of central North America, 
is largely eaten by the Indians of that region; the berries 
