An Introduction to Botany |
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Page ix
... considered only with reference to first principles ; there are , how- ever , a few others which it has been thought advis able to append , on account of their practical value . These are , firstly , PHYTOGRAPHY ( Book V. ) ; or an ...
... considered only with reference to first principles ; there are , how- ever , a few others which it has been thought advis able to append , on account of their practical value . These are , firstly , PHYTOGRAPHY ( Book V. ) ; or an ...
Page xi
... considered the basis of all scientific knowledge of vegetable structure . It has been my wish to bring every subject that I have introduced down , as nearly as possible , to the state in which it is found at the present day ; but , alas ...
... considered the basis of all scientific knowledge of vegetable structure . It has been my wish to bring every subject that I have introduced down , as nearly as possible , to the state in which it is found at the present day ; but , alas ...
Page xiv
... CONSIDERED IN A STATE OF ACTION CHAP . I. Elementary Organs II . Root III . Sap IV . Pith , Wood , and Bark V. Leaves - 210 · 221 · 227 - 230 239 247 VI . Bractea , Calyx , Corolla , and Disk · 257 VII . Stamens and Pistillum - 262 VIII ...
... CONSIDERED IN A STATE OF ACTION CHAP . I. Elementary Organs II . Root III . Sap IV . Pith , Wood , and Bark V. Leaves - 210 · 221 · 227 - 230 239 247 VI . Bractea , Calyx , Corolla , and Disk · 257 VII . Stamens and Pistillum - 262 VIII ...
Page 1
... considered with reference to their internal organisation , they appear at first sight to consist of a vast multitude of exceedingly minute cavities , separated by a membranous substance ; more exactly examined , it is found that these ...
... considered with reference to their internal organisation , they appear at first sight to consist of a vast multitude of exceedingly minute cavities , separated by a membranous substance ; more exactly examined , it is found that these ...
Page 6
... considered , at present , a gratuitous hypothesis , if , indeed , it were not rather said to be an untenable one . No one has ever seen the granules passing through the sides of the cellules ; no rupture of the sides of the cellules ...
... considered , at present , a gratuitous hypothesis , if , indeed , it were not rather said to be an untenable one . No one has ever seen the granules passing through the sides of the cellules ; no rupture of the sides of the cellules ...
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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.