An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 páginas |
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Resultados 1-5 de 83
Página 4
... containing fluid matter exposed to decomposition . Elementary membrane generally tears readily , as if its component atoms do not cohere with greater force in one direction than another ; but I have met with a remarkable instance to the ...
... containing fluid matter exposed to decomposition . Elementary membrane generally tears readily , as if its component atoms do not cohere with greater force in one direction than another ; but I have met with a remarkable instance to the ...
Página 10
... contain air - bubbles , which appear to have no direct means of escape , and that the limits of colour are always very accurately defined in petals , as , for instance , in the stripes of tulips and carnations , which could not be the ...
... contain air - bubbles , which appear to have no direct means of escape , and that the limits of colour are always very accurately defined in petals , as , for instance , in the stripes of tulips and carnations , which could not be the ...
Página 11
... contain . In the stem of the Garden Balsam ( Impatiens Balsamina ) , a single cell is frequently red in the midst of others that are colourless . Examine the red bladder , and you will find it filled with a colouring matter of which the ...
... contain . In the stem of the Garden Balsam ( Impatiens Balsamina ) , a single cell is frequently red in the midst of others that are colourless . Examine the red bladder , and you will find it filled with a colouring matter of which the ...
Página 12
... containing chlo- rophyll ( green colouring matter ) , and having its cavity in communication with that of the joint which bears it ; as the branch lengthens , a contraction is observable at the line of insertion , which contraction is ...
... containing chlo- rophyll ( green colouring matter ) , and having its cavity in communication with that of the joint which bears it ; as the branch lengthens , a contraction is observable at the line of insertion , which contraction is ...
Página 19
... containing bub- bles of air , and by the difference between their state when dried and when recent . + I regret very much that my imperfect acquaintance with the German language is insufficient to enable me to give the valuable ...
... containing bub- bles of air , and by the difference between their state when dried and when recent . + I regret very much that my imperfect acquaintance with the German language is insufficient to enable me to give the valuable ...
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Palavras e frases frequentes
Adolphe Brongniart anther apex appears arranged axis bark base become bladders body botanists bracts branches buds bundles called calyx Candolle carbonic acid carpels cause cavity cells cellular tissue centre character colour colourless common compound considered consists corolla cotyledons cyclosis cyme dehiscence developement direction disk dissepiments distinct Dutrochet elongated embryo Endogens epidermis exist Exogens external extremity fibres fleshy flowers fluid fruit glands grains granules green growing hairs inflorescence integument kind layers leaf leaflets leaves Linnæus lobes margin matter medullary rays membrane midrib Mirbel modifications Mohl monocotyledons nature nucleus observations organs ovary ovule oxygen parenchyma peculiar pericarp petals petiole pistil pith placenta plants Plate pollen pollen tube produced quantity radicle remarkable roots round seeds separate side sometimes species spiral vessels stamens stem stigma stomates structure substance surface term terminal tion tree tube valves vascular vegetable veins wood woody tissue yellow