. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 446 DAHLIA DAHLIA about 1881, and for several years thereafter several hundred forms were kept distinct, and they were made the chief feature of the European shows. It is exceed- ingly interesting to get seeds of wild Dahlias from Mexico. They give flowers like the star-shaped one in Fig. 663. When the Dahlia f
. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 446 DAHLIA DAHLIA about 1881, and for several years thereafter several hundred forms were kept distinct, and they were made the chief feature of the European shows. It is exceed- ingly interesting to get seeds of wild Dahlias from Mexico. They give flowers like the star-shaped one in Fig. 663. When the Dahlia first came into cultivation its rays were relatively long, slender, acuminate, notched at the end, and with such wide spaces between the tips of the rays as to give the flower the stellate appearance seen in Fig. 663. In the course of the evo- lution of the single type, the gardeners retained the most regular and symmetrical forms. Single Dahlias with always and only 8 rays were preserved. The rays of Dahlias became broader and rounder, as in Fig. C60, until finally in pedigree varieties they closed up the vacant spaces, and the flower presents to the eye one unbroken picture —one concentrated impression of a single color. The same mental ideals have produced the. 661. A Dahlia of the Single Cactus type (X %). Tose-petaled Geraniums and the shouldered Tulips. In a high bred single Dahlia there are no minute teeth or notches at the tips of the rays. In the wild Dahlia, no matter what the color of the Tay may be, the base of the ray is usually yellow; some- times this yellow is very objectionable. Two different policies have been pursued in the matter—suppression and encouragement. Most of the single Dahlias of high pedigree have rays of uniform coloration with no sec- ondary color at the base, but a few have a distinct ring of color at the base, often called an "eye or crown," which is sometimes yellow and rarely red or some other •color. Usually the rays of a sin
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