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Horsetails, like other vascular plants, display an alternation of generations: an
asexual phase, represented by a sporophyte (the horsetail plant); and a sexual
phase, the gametophyte, an inconspicuous, delicate, green plant. Each year ...
The embryo (young sporophyte) is nourished by the gametophyte until it
develops its own shoot and roots. One gametophyte may support two or more
young sporo- pyhtes before it ultimately dies and decays. Life cycle of Equisetum.
Form and ...
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This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review