An Introduction to BotanyLongman, 1839 - 594 páginas |
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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 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 cloth colour common consists containing corolla cotyledons cyclosis developement dicotyledons direction disk Dutrochet Edition embryo epidermis exist 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 Loudon 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 species specimens spiral vessels stamens stem stigma stomates structure substance surface term terminating tion tree tubes vascular vegetable veins wood woody tissue yellow