The flower and the bee; plant life and pollination

Description:

Ambrosia artemisiifolia Identifier: flowerbeeplant00love (find matches)
Title: The flower and the bee; plant life and pollination
Year: 1918 (1910s)
Authors: Lovell, John Harvey, 1860-1939
Subjects: Fertilization of plants
Publisher: New York, C. Scribner's sons
Contributing Library: The LuEsther T Mertz Library, the New York Botanical Garden
Digitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical Garden

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puffs of pollen are forciblyprojected into the air, appearing like minute explosions. THE EVERGREEN OR CONE TREES Red-cedars blossom tu, though few folks know it.An look all dipt in sunshine like a poet.—Lowell. Vast forests of evergreen or coniferous trees, covering mil-lions of acres, are found throughout the north temperate zoneof both the Old and New Worlds. Large portions of Canadaare densely forested with white pine and black spruce; in Siberiathere are great tracts of pine, cedar, and larch; in Russia ofScotch fir, spruce, and Siberian larch; and along the southernshore of the Baltic of fir and Norway spruce. The aspectwithin these northern forests of conifers is dark and cold; thereis little underbrush and the ground is bare or carpeted withmosses and lichens—a solitude made more intense by dreary-voiced elements. Unlike the forests of the tropics, all kindsof animal life are scarce, and no bright-colored birds, butter-flies, or flowers light up these sombre solitudes. 38
Text Appearing After Image:
Fig. 14. Roman Wormwood. Afnbrosia artemisiijolia THE FLOWER AND THE BEE Asa Gray and the older botanists often speak of the flowers*of the conifers, but the naked seeds and the absence of a stigma,as well as a difference of opinion as to what constitutes a flowerand what an inflorescence, are objections to this usage. It isbetter to restrict the word flower to the Angiosperms, or plantswith the seeds in a closed seed-vessel a part of which is special-ized to receive the pollen. The cone-trees and the tropical,fern-like cycads, which are also wind-pollinated, belong to theGymnosperms. There are in the world about 350 species of conifers (Coni-ferales), all of which are wind-pollinated. The cones are al-ways unisexual, either staminate (male) or ovulate (fe-male). Both kinds usually occur on the same tree, but in thejuniper and yew they are mostly on different trees. The fruit-ing cones are produced in positions where they are likely tobe cross-pollinated; for instance, in the fir and

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