Elements of Botany
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In our eReader you can find the full English version of the book. Read Elements of 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 Elements of Botany
What reading level is Elements of Botany book?
To quickly assess the difficulty of the text, read a short excerpt:
— Hold in the forceps a ripe fruit of any of the common kinds of dock,^ and examine with the magnifying- glass. Note the three dry, veiny, membranaceous sepals by which the fruit is enclosed. On the outside of one or more of the sepals is found a tubercle or thickened appendage which looks like a little seed or grain.
No use is known for this.
Of what use are the sepals, after drying up ? Why do the fruits cling to the plant long after ripening ?
Carefully remove the sepals and examine the frui...t within them. What is its color, size, and shape ? Make a sketch of it as seen with the magnifying glass. Note the three tufted stigmas, attached by slender threads to the apex of the fruit. What does their tufted shape indicate ?
What evidence is there that this seed-like fruit is not really a seed ?
Make a cross-section of a fruit and notice whether the wall of the ovary can be seen, distinct from the seed coats. Compare the dock-fruit in this respect with the fruit of the anemone, shown in Fig.
What to read after Elements of Botany?
You can find similar books in the "Read Also" column, or choose other free books by Joseph Y Joseph Young Bergen to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
— Hold in the forceps a ripe fruit of any of the common kinds of dock,^ and examine with the magnifying- glass. Note the three dry, veiny, membranaceous sepals by which the fruit is enclosed. On the outside of one or more of the sepals is found a tubercle or thickened appendage which looks like a little seed or grain.
No use is known for this.
Of what use are the sepals, after drying up ? Why do the fruits cling to the plant long after ripening ?
Carefully remove the sepals and examine the frui...t within them. What is its color, size, and shape ? Make a sketch of it as seen with the magnifying glass. Note the three tufted stigmas, attached by slender threads to the apex of the fruit. What does their tufted shape indicate ?
What evidence is there that this seed-like fruit is not really a seed ?
Make a cross-section of a fruit and notice whether the wall of the ovary can be seen, distinct from the seed coats. Compare the dock-fruit in this respect with the fruit of the anemone, shown in Fig.
What to read after Elements of Botany?
You can find similar books in the "Read Also" column, or choose other free books by Joseph Y Joseph Young Bergen to read onlineMoreLess
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