The Elements of Botany for Beginners And for Schools
The book The Elements of Botany for Beginners And for Schools was written by author Asa Gray Here you can read free online of The Elements of Botany for Beginners And for Schools book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Elements of Botany for Beginners And for Schools a good or bad book?
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Afterward the scales close over each' other until the seeds are ripe. Then they sepa- rate that the seeds may be shed. As the pollen acts directly on the ovules, such pistil (or organ acting as pistil) has no stigma. 315. In the Yew, and in Torreya and Gingko, the gynoBcium is reduced to extremest simplicity, that is, to a naked ovule, without any visible carpel. 316. In Cycas the large naked ovules are borne on the margins or lobes of an obvious open leaf. All Gymnospeemous plants have other p...eculiarities, also distinguishing them, as a class, from Angiospebmous plants. Fio. 337. A pistil, that is, a scale of the cone, of a Larch, at the time of flower- ing; inside view, showing its pair of naked ovules. Pio. 338. Branohlet of the American Arbor-Vitse, considerably larger than in nature, terminated by its pistillate flowers, each consisting of a single scale (an open pistil), together forming a small cone. Flo. 339. One of the scales or carpels of the last, removed and more enlarged, the inside exposed to view, showing a pair of ovules on its base.
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