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chestnuts are trees, and are grown in the arboretum. Fol- 
lowing this is the soapberry family, with the soapberry, from 
the southeastern United States, as a representative. At some 
distance from the path to the left is the buckthorn family ; 
the most familiar plant here is the New Jersey tea, or red 
root, of eastern North America; its leaves have been used as 
a substitute for tea, and it is said that the industry is being 
revived in Pennsylvania ; the jujube-tree, an inhabitant of the 
Mediterranean region and temperate Asia, 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, 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. The mallow family, further along the path, 
is represented by two specimens of the rose-of-Sharon (//7z6zs- 
cus syriacus), from western Asia, and often found escaped 
from cultivation in the eastern United States; many her- 
baceous representatives of this family will be found at the 
herbaceous grounds. Near the mallow family is the tea 
family, represented by the mountain Stwart/a, from the 
southeastern United States ; other members of the tea family, 
including the tea plant and the common camellia, will be 
found at the conservatories. Also near the mallows will 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. 
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 
