An Introduction to Botany |
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Page 34
... opposite opinion ; denying the existence of passages , and considering the sto- mata rather in the light of glands . Nees von Esenbeck and Link deny the existence of any perforation in the sto- mata , and consider that the supposed ...
... opposite opinion ; denying the existence of passages , and considering the sto- mata rather in the light of glands . Nees von Esenbeck and Link deny the existence of any perforation in the sto- mata , and consider that the supposed ...
Page 40
... opposite sides . Such would be more correctly named divaricating hairs . When the central cellule has an unusual size , as in Malpighia , these hairs are called poils en navette ( pili Malpighiacei ) by M. De Candolle ; and when the ...
... opposite sides . Such would be more correctly named divaricating hairs . When the central cellule has an unusual size , as in Malpighia , these hairs are called poils en navette ( pili Malpighiacei ) by M. De Candolle ; and when the ...
Page 44
... plant first begins to grow from the seed , it is a little body called an embryo , with two opposite extremities , of which the one elongates in the direction of the earth's 44 BOOK I. ORGANOGRAPHY . Of the Stem or Ascending Axis:
... plant first begins to grow from the seed , it is a little body called an embryo , with two opposite extremities , of which the one elongates in the direction of the earth's 44 BOOK I. ORGANOGRAPHY . Of the Stem or Ascending Axis:
Page 45
... opposite directions is found in all seeds , pro- perly so called , there being no known exception to it ; and the tendency is moreover so powerful , that , as we shall hereafter see ( Book II . ) , no external influence is sufficient to ...
... opposite directions is found in all seeds , pro- perly so called , there being no known exception to it ; and the tendency is moreover so powerful , that , as we shall hereafter see ( Book II . ) , no external influence is sufficient to ...
Page 76
... opposite extremity of the seed or bud bury itself in the earth and become a root , with a tendency downwards so powerful , that no known force is sufficient to overcome it . Correctly speaking , nothing can be considered a root except ...
... opposite extremity of the seed or bud bury itself in the earth and become a root , with a tendency downwards so powerful , that no known force is sufficient to overcome it . Correctly speaking , nothing can be considered a root except ...
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Common terms and phrases
acid Adolphe Brongniart albumen anther apex appearance appendages arrangement axis bark base become body botanists bractea branches Brown buds called calyx Cand Candolle carpella cavity cells cellular tissue cellules centre chalaza characters Class colour common Compositæ compound considered consists corolla cotyledons cuticle dehiscence developed dicotyledons direction disk dissepiments distinct distinguished ducts earth elongated embryo exist extremely filament fleshy flowers fluid fructification fruit genera genus granules hairs hilum indehiscent inflorescence integuments kind latter leaf leaflets leaves Linnæus lobes margin medullary rays membrane Mirb Mirbel modifications monocotyledons nature observed organs ovarium ovula ovulum oxygen parenchyma peculiar pericarpium petals petiole pistillum pith placenta plants Plate plumula pollen produced racters radicle receptacle remarkable roots seed sepals separate side sometimes species spiral vessels sporules stamens stem stigma stomata structure substance surface term terminating testa tree tube valves vascular vegetation veins wood woody fibre
Popular passages
Page 6 - Thysanotus fasciçularii, the flowers of which are of a deep brilliant violet, with a remarkably satiny lustre, that appearance will be found to arise from each particular cell containing a single drop of...
Page 217 - ... in its substance, and of evaporating pores on its surface, enables the crude fluid sent from the roots to be elaborated and digested until it becomes the peculiar secretion of the species; the contraction of a branch and its leaves forms a flower ; the disintegration of the internal tissue of a petal forms an anther; the folding inwards of a leaf is sufficient to constitute a...
Page 525 - ... verging to green. Again, the ranunculus, which is originally of an intense yellow, sports into scarlet, red, purple, and almost any colour but blue. White flowers, which have a tendency to produce red, will never sport to blue, although they will to yellow ; the rose, for example, and chrysanthemums. It is also probable that white flowers with a tendency to produce blue, will not vary to yellow.