An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 páginas |
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Resultados 1-5 de 66
Página 12
... bears it ; as the branch lengthens , a contraction is observable at the line of insertion , which contraction is directed towards the interior of the cell , and chokes up the green matter , forming a sort of partition , pierced in the ...
... bears it ; as the branch lengthens , a contraction is observable at the line of insertion , which contraction is directed towards the interior of the cell , and chokes up the green matter , forming a sort of partition , pierced in the ...
Página 23
... bears no comparison as to strength , with either flax or hemp . Alphonse De Candolle gives the following as the result ob- tained by Labillardière , as to the relative strength of different organic fibres . He found that , in suspending ...
... bears no comparison as to strength , with either flax or hemp . Alphonse De Candolle gives the following as the result ob- tained by Labillardière , as to the relative strength of different organic fibres . He found that , in suspending ...
Página 28
... bears to that form of cellular tissue ( p . 16. ) , in which a spiral fibre is generated within a cellule : it is probable that the origin of the fibre is the same in both cases , and that its position with regard to the membrane is ...
... bears to that form of cellular tissue ( p . 16. ) , in which a spiral fibre is generated within a cellule : it is probable that the origin of the fibre is the same in both cases , and that its position with regard to the membrane is ...
Página 67
... bear the same relation to the roots that buds bear to young F 2 CHAP . II . 67 GLANDS .
... bear the same relation to the roots that buds bear to young F 2 CHAP . II . 67 GLANDS .
Página 68
John Lindley. same relation to the roots that buds bear to young branches . ( Premier mém . sur les Lentic . , in the Ann . des Sciences Na- turelles . ) In Tree ferns it is hardly posssble to doubt that the tubercles so common on the ...
John Lindley. same relation to the roots that buds bear to young branches . ( Premier mém . sur les Lentic . , in the Ann . des Sciences Na- turelles . ) In Tree ferns it is hardly posssble to doubt that the tubercles so common on the ...
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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