An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 páginas |
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Página 6
... transparent and colourless . It appears to 1 * For the supposed chemical difference between elementary membrane and fibre , see Book II . Chapter 1 . be sometimes capable of extension with the same rapidity as 6 BOOK I. ORGANOGRAPHY .
... transparent and colourless . It appears to 1 * For the supposed chemical difference between elementary membrane and fibre , see Book II . Chapter 1 . be sometimes capable of extension with the same rapidity as 6 BOOK I. ORGANOGRAPHY .
Página 9
... appears otherwise , its colour is caused by matter contained within it . If a thin slice of the pith of elder , or of any other plant , be examined with a microscope , it will be found to have a sort of honeycomb appearance , as if ...
... appears otherwise , its colour is caused by matter contained within it . If a thin slice of the pith of elder , or of any other plant , be examined with a microscope , it will be found to have a sort of honeycomb appearance , as if ...
Página 11
... appear to differ in different plants . Amici says that the new tubes of Chara appear like young buds , from the points or axils of pre - existing tubes , an observation which has been confirmed by Slack . It has been stated by Mirbel ...
... appear to differ in different plants . Amici says that the new tubes of Chara appear like young buds , from the points or axils of pre - existing tubes , an observation which has been confirmed by Slack . It has been stated by Mirbel ...
Página 13
... appears that the spheroid is the figure which should be considered normal or typical in this kind of tissue ; for that is the form in which bladders are always found when they are generated separately , without exercising any pressure ...
... appears that the spheroid is the figure which should be considered normal or typical in this kind of tissue ; for that is the form in which bladders are always found when they are generated separately , without exercising any pressure ...
Página 16
... appears only to be distinguishable by the spires of the fibres not being in contact , being incapable of unrolling , having no elasticity or tenacity ; and by the bladders not being cylin- drical and tapering to each end , but ...
... appears only to be distinguishable by the spires of the fibres not being in contact , being incapable of unrolling , having no elasticity or tenacity ; and by the bladders not being cylin- drical and tapering to each end , but ...
Índice
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19 | |
27 | |
110 | |
121 | |
146 | |
277 | |
289 | |
455 | |
461 | |
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478 | |
481 | |
506 | |
302 | |
309 | |
330 | |
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389 | |
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534 | |
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552 | |
571 | |
587 | |
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Palavras e frases frequentes
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
Passagens conhecidas
Página 593 - Dr. Ure's Dictionary of Arts, Manufactures, and Mines : Containing a clear Exposition of their Principles and Practice.