. 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. PLATANUS PLATANUS 1367 size it attains —trunks of 30 ft. diameter and more are reported to exist —and has been planted as a shade tree in W. Asia and S. Europe, and to-day it is still one of the favorite street trees throughout the temperate re- gions of Europe. It has also been recognized in this country as on
. 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. PLATANUS PLATANUS 1367 size it attains —trunks of 30 ft. diameter and more are reported to exist —and has been planted as a shade tree in W. Asia and S. Europe, and to-day it is still one of the favorite street trees throughout the temperate re- gions of Europe. It has also been recognized in this country as one of the best street trees, even to be pre-. 1846. Plane-tree—Platanus occidentalis. ferred to the native Plane, which, unfortunately, suffers from the attacks of a fxingns,GlcFoapo^'iiim nerviseqinim, while the Oriental is not injured by it. The Plane-trees stand pruning—even severe pruning—well. To what extent they are sometimes pruned in European cities without losing their vitality is shown in an interesting illustration in "Forest Leaves," vol. 3, p. 97. They are also easily transplanted even as larger trees. They grow best in a deep and rich, moist soil. Prop, by seeds sown in spring and only slightly covered with soil and kept moist and shady; also by cuttings of ripened wood and by greenwood cuttings under glass in June taken with a heel and sometimes by layers. Varieties are also occa- sionally grafted in spring on seedlings of one of the species. The stellate hairs of the young Ivs. when de- tached by the wind, sometimes float in great quantities in the air and are liable to cause irritation and some- times inflammation of the mucous membranes of the eye, nose and mouth. But as this is likely to occur only dur- ing a very limited period late in spring it can hardly be considered as a serious objection to the use of Platanus as a street tree. Six or 7 species of Platanus are known in N. America south to Mexico and from southeast Europe to India, Tre
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