. 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. DAHLIA DAHLIA 447 A. Plants not very dwarf. B. Fls. single. c. Mays flat, not recurved at the margins. 1. The Single Type. Pig. 660. CO. Hays with recurved margins. 2. The Single Caotus Type. Pig. 661. EB. Fls. double. c. Size of fls. small, 1-^ in. across. D. Bays cupped. 3. The Pompon Ttpb. Pig. 662. Also cal


. 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. DAHLIA DAHLIA 447 A. Plants not very dwarf. B. Fls. single. c. Mays flat, not recurved at the margins. 1. The Single Type. Pig. 660. CO. Hays with recurved margins. 2. The Single Caotus Type. Pig. 661. EB. Fls. double. c. Size of fls. small, 1-^ in. across. D. Bays cupped. 3. The Pompon Ttpb. Pig. 662. Also called >'Bouquet" and "; DD. Rays flat. 4. The Pompon Cactus Type. CO. Size of fls. large, S-5 in. across, averaging 4 in. D. Says cupped. E. Colors single, or the edges darker than the ground color. 5. The Show Type. Pig. 663. EE. Colors Z or more, striped, or with edges lighter than the ground color. 0. The Panoy Type. DD. Says not cupped, but long and flat, or with re- curved margins. 7. The Cactus Type. Pigs. 665, 666. DDD. Says various in form. S. The Cactus Hybkid Types. Also called "Decora- tive" Dahlias. AA. Plants very dwarf. â 9. The Tom Thumb Types. SooiETiES AND Shows.âThe Dahlia is one of about a dozen genera of plants whose horticultural value has "been attested by permanently successful special socie- ties. There are national Dahlia societies in England and America. Dahlia shows are usually held the second or third week of September. With the growing interest in nature-study, attempts are being made to make a per- manent institution of local fall flower shows, which shall come at a sufficient interval before the Chrysan- themum shows, and in which the children may exhibit their own products. The Dahlia and China ;Aster are especially suited for such shows. Garden Evolution of Dahlias.âIn the evolution of Dahlias in general, some of the great changes are as follows: (1) The growing season has been greatly shortened and


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