An Introduction to Botany |
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Page 8
... round from end to end with two contiguous parallel streaks disposed spirally . They then enlarged , and their streaks became slits , which cut the sides of the tubes from end to end into two threads , whose circumvolutions separated ...
... round from end to end with two contiguous parallel streaks disposed spirally . They then enlarged , and their streaks became slits , which cut the sides of the tubes from end to end into two threads , whose circumvolutions separated ...
Page 17
... round three of the sides of prismatical right - angled cells , in the anthers of Nymphæaceæ , & c . 7. Fibres very short , attached to the sides of cells of various figures , to which they give a sort of toothed appearance , as in the ...
... round three of the sides of prismatical right - angled cells , in the anthers of Nymphæaceæ , & c . 7. Fibres very short , attached to the sides of cells of various figures , to which they give a sort of toothed appearance , as in the ...
Page 19
... round , the colour from yellowish to a silvery white , and changing to pale yellow up to darkest brown upon the application of iodine in size it varies between of a Paris inch in diameter , in Fritillaria pyrenaica , where it attains ...
... round , the colour from yellowish to a silvery white , and changing to pale yellow up to darkest brown upon the application of iodine in size it varies between of a Paris inch in diameter , in Fritillaria pyrenaica , where it attains ...
Page 20
... round each molecule . As soon as the Cytoblast has attained its full size , there appears upon it a fine transparent vesicle ; this is a young cell , which at first represents a very flat segment of a sphere whose flat side is formed of ...
... round each molecule . As soon as the Cytoblast has attained its full size , there appears upon it a fine transparent vesicle ; this is a young cell , which at first represents a very flat segment of a sphere whose flat side is formed of ...
Page 26
... round a space which they gradually close up , except a narrow opening into an air chamber , the layer next the centre being the youngest . I have not suc- ceeded in obtaining any section which will show this structure . It has been ...
... round a space which they gradually close up , except a narrow opening into an air chamber , the layer next the centre being the youngest . I have not suc- ceeded in obtaining any section which will show this structure . It has been ...
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Common terms and phrases
Adolphe Brongniart albumen anther apex appears axis bark base become body botanists Botany bracts branches buds bundles called calyx Cand Candolle carbonic acid carpels cause cavity cells cellular tissue centre chalaza character colour common considered consists containing corolla cotyledons cyclosis developement dicotyledons direction disk distinct Dutrochet elongated embryo epidermis exist external extremity fibres filament fleshy flowers fluid foramen fruit glands grains green growing hairs hilum inches integument kind latex layers leaf leaflets leaves light Linnæus lobes margin matter medullary rays membrane Mirbel monocotyledons nature nitrogen nucleus observed organs ovarium ovary ovule oxygen parenchyma pericarp petals petiole pistil pith placenta plants Plate plumula pollen pollen tube produced quantity radicle Raphides remarked roots round seeds separate side sometimes species specimens spiral vessels stamens stem stigma stomates structure substance surface term terminating tion tree tubes vascular vegetable veins wood woody tissue yellow
Popular passages
Page 593 - Dr. Ure's Dictionary of Arts, Manufactures, and Mines : Containing a clear Exposition of their Principles and Practice.