An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 páginas |
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Resultados 1-5 de 77
Página 1
... minute cavities , separated by a membranous substance ; more exactly examined , it is found that these cavities have a variety of different figures , and that each is closed up from those that surround it ; if the inquiry is carried ...
... minute cavities , separated by a membranous substance ; more exactly examined , it is found that these cavities have a variety of different figures , and that each is closed up from those that surround it ; if the inquiry is carried ...
Página 4
... minute rhomboidal spaces . Mohl , however , who has made this observation , does not therefore consider with Grew that the membrane is woven together of fibres , but that their appearance is owing to a small difference in the thickness ...
... minute rhomboidal spaces . Mohl , however , who has made this observation , does not therefore consider with Grew that the membrane is woven together of fibres , but that their appearance is owing to a small difference in the thickness ...
Página 6
... minute cul de sacs often branched , and always opening into the interior of the cell . They may be readily found in the gritty tissue of the pear ( fig . 2. a ) , the stone of the plum b , and the compact albu- men of seeds . Fig . 2. e ...
... minute cul de sacs often branched , and always opening into the interior of the cell . They may be readily found in the gritty tissue of the pear ( fig . 2. a ) , the stone of the plum b , and the compact albu- men of seeds . Fig . 2. e ...
Página 7
... minute portions , and is carried along by the growing membrane . In direction it is variable ( Plates I. and II . ) ; sometimes it is straight , and attains a considerable length , as in some fungi ; sometimes it is short and straight ...
... minute portions , and is carried along by the growing membrane . In direction it is variable ( Plates I. and II . ) ; sometimes it is straight , and attains a considerable length , as in some fungi ; sometimes it is short and straight ...
Página 13
... minute . Cellular tissue grows for a long time after its generation , and hence the bulk of a given part may be much in- creased without the addition of any new elementary organs . Link states that in the branch of a Pelargonium ...
... minute . Cellular tissue grows for a long time after its generation , and hence the bulk of a given part may be much in- creased without the addition of any new elementary organs . Link states that in the branch of a Pelargonium ...
Índice
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43 | |
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372 | |
475 | |
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258 | |
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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