A Practical Course in Botany With Especial Reference to Its Bearings On Agricu
A Practical Course in Botany With Especial Reference to Its Bearings On Agricu
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In our eReader you can find the full English version of the book. Read A Practical Course in Botany With Especial Reference to Its Bearings On Agricu 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 A Practical Course in Botany With Especial Reference to Its Bearings On Agricu
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To quickly assess the difficulty of the text, read a short excerpt:
Now turn the flower over and sketch the inside, labeling the three large, petal-like expan- sions in the center, stigmas. Do you see any stamens ?
Remove one of the sepals and look under the stigma; what do you find there ?
Notice the little honey pockets at the foot of the stamen. Run the head of your pencil into them and see what would happen to the head of an insect probing for honey.
Fig. 290. — Iris flower: sp, spathes ; s, sepals + p, petals = perianth.
- Vertical section of iris flower: ...ov, ovules ; pi, placenta ; tu, tube of the perianth inclosing the style ; sta, stamen ; sti, stigma : o, ovary. (After Gray. ) Fig. 2 9 2 . — Vertical section of iris flower, with perianth removed, showing a stamen and three stig- mas: «/, stigmatic surface.
Fig. 293. — Cross sec- tion of ovary of iris flower : c, c, carpels ; /, /, locules ; Oil, ovules ; pi, placenta.
206 PRACTICAL COURSE IN BOTANY Remove the perianth and sketch the remaining organs in profile, showing the position of the stamens.
What to read after A Practical Course in Botany With Especial Reference to Its Bearings On Agricu?
You can find similar books in the "Read Also" column, or choose other free books by Eliza Frances Andrews to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Now turn the flower over and sketch the inside, labeling the three large, petal-like expan- sions in the center, stigmas. Do you see any stamens ?
Remove one of the sepals and look under the stigma; what do you find there ?
Notice the little honey pockets at the foot of the stamen. Run the head of your pencil into them and see what would happen to the head of an insect probing for honey.
Fig. 290. — Iris flower: sp, spathes ; s, sepals + p, petals = perianth.
- Vertical section of iris flower: ...ov, ovules ; pi, placenta ; tu, tube of the perianth inclosing the style ; sta, stamen ; sti, stigma : o, ovary. (After Gray. ) Fig. 2 9 2 . — Vertical section of iris flower, with perianth removed, showing a stamen and three stig- mas: «/, stigmatic surface.
Fig. 293. — Cross sec- tion of ovary of iris flower : c, c, carpels ; /, /, locules ; Oil, ovules ; pi, placenta.
206 PRACTICAL COURSE IN BOTANY Remove the perianth and sketch the remaining organs in profile, showing the position of the stamens.
What to read after A Practical Course in Botany With Especial Reference to Its Bearings On Agricu?
You can find similar books in the "Read Also" column, or choose other free books by Eliza Frances Andrews to read onlineMoreLess
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