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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. 
he 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 
