An Introduction to General Biology
An Introduction to General Biology
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In our eReader you can find the full English version of the book. Read An Introduction to General Biology 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 An Introduction to General Biology
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55b.
A section taken at right angles to this — i.e., v ertical and longitudina l — shows the cell to be approximately rectangular and quadrilatera l (Fig.
55a), while a transverse vertical section shows it in the form of a bi-convex lens (Fig. 56).
The funnel-shaped depre ss ion is compressed vertically , and its walls are thickly covered with erect bra nching hairs, which are closely fastened Fig. 67.— Cross-section of an entire fertile leaflet. m.r^ midrib; u, veins; ep, epi- dermis ; m«, mes...ophyll ; 8p, sporangia ; in^ indusium.
together by a h ardene d mucilage secreted by the apical bud. These hairs entirely close the mouth of the funnel and sjiut off the delicate young Digitized by Google HISTOLOGY OF THE LEAF. 125 pprtions at its base from the outer world. Protected by these hairs, the end of the stem forces its way througn tne toughest qlay without injury to the delicate Dua Duriea m its apex. (^Hoimeister.; Fig. 58.— Cross-section, still more enlarged, passing through the midrib of a leaflet.
What to read after An Introduction to General Biology?
You can find similar books in the "Read Also" column, or choose other free books by W T William Thompson Sedgwick to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
55b.
A section taken at right angles to this — i.e., v ertical and longitudina l — shows the cell to be approximately rectangular and quadrilatera l (Fig.
55a), while a transverse vertical section shows it in the form of a bi-convex lens (Fig. 56).
The funnel-shaped depre ss ion is compressed vertically , and its walls are thickly covered with erect bra nching hairs, which are closely fastened Fig. 67.— Cross-section of an entire fertile leaflet. m.r^ midrib; u, veins; ep, epi- dermis ; m«, mes...ophyll ; 8p, sporangia ; in^ indusium.
together by a h ardene d mucilage secreted by the apical bud. These hairs entirely close the mouth of the funnel and sjiut off the delicate young Digitized by Google HISTOLOGY OF THE LEAF. 125 pprtions at its base from the outer world. Protected by these hairs, the end of the stem forces its way througn tne toughest qlay without injury to the delicate Dua Duriea m its apex. (^Hoimeister.; Fig. 58.— Cross-section, still more enlarged, passing through the midrib of a leaflet.
What to read after An Introduction to General Biology?
You can find similar books in the "Read Also" column, or choose other free books by W T William Thompson Sedgwick to read onlineMoreLess
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