(i93) 



the giant ragweed and the common clot-blur find represen- 

 tation here. Terminating the sequence comes the very- 

 large thistle family, represented by many species from all 

 parts of the world; there are nine beds at present given over 

 to these plants; the sunflowers, coneflowers, thistles, asters, 

 fleabanes, yarrows, golden-rods, tansies, sneezeweeds, bur- 

 docks, artemisias and wormwoods, cat's-foot, tick-seeds, 

 elecampane, boneset, chrysanthemums, colt's-foot and 

 many others are shown; the Jerusalem artichoke, one of the 

 sun-flowers, a native of eastern North America, bears edible 

 tubers. 



9. Morphological Garden 



This is located to the north of the herbaceous garden, 

 the two collections being separated by the driveway which 

 crosses the valley. It is designed to illustrate here with 

 typical examples the organs and other features of plants, 

 including leaf-forms and the various modifications of their 

 margins, their venation and insertion on the stem; also 

 the various kinds of stems, methods of propagation, 

 flower-clusters and fruits, leaf-movements, parasites, desert 

 plants and seed-dispersal. Looking north on this collec- 

 tion, the first bed to the right of the brook contains plants 

 illustrating simple leaf-forms. Immediately following this 

 on the same side of the brook are the plants representing the 

 various forms of compound leaves, or those in which there 

 is a distinct jointing of the leaflets to the leaf-axis. Farther 

 along the brook, in the pool, may be found various forms 

 of aquatic roots, stems and leaves; and a little beyond this 

 to the right is the bed containing plants illustrating forms 

 of propagation. 



• The remaining plats of this collection are located on the 

 left hand or westerly side of the brook. The first of these 

 to the right is devoted to leaf-venation, and the one to the 

 left to leaf-margins, the former illustrating the character 

 of the veins and nerves, and the latter the toothing or 

 lobing of the margins. Beyond this to the right is the 

 group of plants showing the manner of insertion of the 



