(6 9 ) 



chestnuts are trees, and are grown in the arboretum. Fol- 

 lowing this is the soapberr)^ 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 {Hibis- 

 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 Stuartia, 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 



