Archive image from page 353 of Cyclopedia of American horticulture, comprising. 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 cyclopediaofamer04bail4 Year: 1900 2485. Toad-flax—Linaria. ShowinK normal and ab- normal flowers. Example of peloria. larva, together with the chemical stimulus from its va- rious excretions, in which case the gall develops after the hatching
Archive image from page 353 of Cyclopedia of American horticulture, comprising. 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 cyclopediaofamer04bail4 Year: 1900 2485. Toad-flax—Linaria. ShowinK normal and ab- normal flowers. Example of peloria. larva, together with the chemical stimulus from its va- rious excretions, in which case the gall develops after the hatching of the egg. 5. Brtincliing of leaves is not infrequent, and its cause is unknown. 'Four-leaved' clovers offer well-known ex- amples, and the normal num- ber of leaflets is often in- creased to six or even more. Pig. 2-t8-l illustrates leaf- branching in the dahlia. Branching in the of flattening, both in foliage leaves and petals, has also been observed, and the branch described as an 'out- growth.' 6. Peloria. When usually irregular flowers, such as those with some spurred or saccate petals or sepals, de- velop all the parts of each set alike, thus becoming radially symmetrical, the phenomenon is called pe- loria. It was first observed by Linnseus in Linaria vul- garis. , and the term peloria, derived from the Greek word for monster, was given by him. Flowers often become peloric on ac- count of changes in their re- lations to light, but other causes certainly cooperate. A reverse change, by which radial flowers become zygo- morphic, occurs in many Compositee when the corollas of disk florets become strap-shaped, as in the cultivated asters and chrysanthemums, but no notice seems to have been taken of it as a malformation. Sometimes all spurs fail to develop. Figs. 2486-7. in. Transformation of Organs: i. e., alterations more profound than those of form, which result in the production of organs diffei-ent from those which normally occupy the position; often ca
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