. 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. TERATOLOGY 1784 known examples. The gall-gnats among the true flies (Diptera) also produce a large variety of malforma- tions, of which the eone-like galls resulting from de- formed buds of the willow and the goldenrod are best known. Plant lice (Aphidae) are responsible for the large smooth red galls on the pe
. 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. TERATOLOGY 1784 known examples. The gall-gnats among the true flies (Diptera) also produce a large variety of malforma- tions, of which the eone-like galls resulting from de- formed buds of the willow and the goldenrod are best known. Plant lice (Aphidae) are responsible for the large smooth red galls on the petiole of sumachs, and for the flattish serrated galls on elm leaves. The fusi-. 2484. Dahlia leaf, illustratine the branchine of leaves form galls on stem of goldenrod and asters is caust by the larva of a moth In t Iditirn t tine in it fl galls and imII,,,, I stimulus ]!nH'|ih-l ("poisons â â ) .-ii til. I I 1 I which case the gall del cl i_shi un 1 tl i g., s nietinu it is the mechanical stimulus due to movements of tl TERATOLOGY larva, together with the chemical stimul rious excretions, in which case the gall the hatching of the egg. 5. Branching of leaves is not infrequent, and its c is uuknown. "Pour-leaved" clovers offer well-known ex- amples, and the normal num- ber of leaflets is often in- creased to six or eve Fig. 2484 illustrates leaf- branching in the dahlia. Branching in the plane of flattening, both in foliage leaves and petals, has also been observed, and the branch described as an "out- ; G. Peloria. When usually irregular flowers, such ns tho loria vith. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bailey, L. H. (Liberty Hyde), 1858-1954; Miller, Wilhelm, 1869-. New York [etc. ] The Macmillan company
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