The Essentials of College Botany
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In our eReader you can find the full English version of the book. Read The Essentials of College Botany Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Essentials of College Botany
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505. By repeated subdivision and continued growth of the zygote a cylindrical stem is formed, rooted below, and with a whorl of narrow leaves above. This is the sporophyte (or "embryo" of the seed). It is nourished by the gametophyte tissue in which it is imbedded. In the meantime ovule, "seed scale, " and cone have increased in size, and later the "seed scales" lose their chlorophyll and become woody. Still later by the lessened supply of water all parts of the cone become dry, stopping the gr...owth of the young sporophyte. The cone- and seeds are now "ripe, " and by the spreading of the dry scales the part of the seed containing the embryo is split loose and blown away.
Pinus (seeds, and young sporo- PINES 281 506. Germination of the seed takes place when water is again suppUecl, resulting in a resumption of the growth of the embryo, the bursting of the brittle integument (indusium) and the escape of nN\\|/A the root, stem and leaves of the embryo. C^^^f^ The root penetrates the soil and provides C^^\ \ i water, while the leaves (now green) pro- .
What to read after The Essentials of College Botany?
You can find similar books in the "Read Also" column, or choose other free books by Charles E Charles Edwin Bessey to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
505. By repeated subdivision and continued growth of the zygote a cylindrical stem is formed, rooted below, and with a whorl of narrow leaves above. This is the sporophyte (or "embryo" of the seed). It is nourished by the gametophyte tissue in which it is imbedded. In the meantime ovule, "seed scale, " and cone have increased in size, and later the "seed scales" lose their chlorophyll and become woody. Still later by the lessened supply of water all parts of the cone become dry, stopping the gr...owth of the young sporophyte. The cone- and seeds are now "ripe, " and by the spreading of the dry scales the part of the seed containing the embryo is split loose and blown away.
Pinus (seeds, and young sporo- PINES 281 506. Germination of the seed takes place when water is again suppUecl, resulting in a resumption of the growth of the embryo, the bursting of the brittle integument (indusium) and the escape of nN\\|/A the root, stem and leaves of the embryo. C^^^f^ The root penetrates the soil and provides C^^\ \ i water, while the leaves (now green) pro- .
What to read after The Essentials of College Botany?
You can find similar books in the "Read Also" column, or choose other free books by Charles E Charles Edwin Bessey to read onlineMoreLess
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