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species. The bed allotted to the gentian family may be 

 found a little beyond the plumbago family; various gen- 

 tians are represented, among them the blind gentian, a native 

 of the United States, and the Thibet gentian, from the Hima- 

 layas and China. In the brook, just beyond the little stone 

 bridge, may be found the buckbean family; here are shown 

 the water-snowflake, common in tropical regions, and the 

 water-lily floating heart, native in Europe and northern 

 Asia. 



Just beyond the left hand bed devoted to the carrot family 

 is the dogbane family; the willow-leaved amsonia, from the 

 central and southeastern United States, and the broad-leaved 

 amsonia, from the central and eastern United States, are con- 

 spicuous objects here. Beyond this are two beds of the 

 milkweed family and among its representatives are the com- 

 mon milkweed of our roadsides, the hairy milkweed and the 

 swamp milkweed; the swallowworts also belong here and 

 are illustrated by several species. In the morning-glory 

 family, located to the right of the above, are the small bind- 

 weed, of northern Europe and Asia, sometimes a troublesome 

 weed in this country, and the bush morning-glory from the 

 western United States. Following the milkweeds is the 

 phlox family; interesting plants here are the Jacob's-ladder 

 (Polemonium) , of Europe, with its masses of blue flowers; 

 the hairy phlox, of North America; Britton's phlox, a rela- 

 tive of the common ground phlox, from the southeastern 

 United States; the ground phlox and its white-flowered 

 form, both natives of the eastern United States; and forms 

 of the garden phlox, also from the southeastern United 

 States. In the shade, the natural habitat of many of these 

 plants, is the water-leaf family, at the base of a large rock 

 on the ridge; there are the purple, the broad-leaved and the 

 Virginia water-leaf (Hydrophyllum) . 



Further along and at the base of the ridge is the borage 

 family; the tuberous comfrey, the rough comfrey and the 

 common comfrey, all natives of Europe, are represented. In 

 the vervain family, in a small bed to the left, may be found : 



