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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 



