An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 páginas |
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Resultados 1-5 de 66
Página 32
... quantities , not only between the alburnum and the liber , em- bedded in cellular tissue , as was first pointed out to me by Mr. Valentine , but also sparingly both in the bark and wood . They have been described by myself as forming ...
... quantities , not only between the alburnum and the liber , em- bedded in cellular tissue , as was first pointed out to me by Mr. Valentine , but also sparingly both in the bark and wood . They have been described by myself as forming ...
Página 36
... quantity of granular matter , which sometimes fills them wholly , and sometimes is separated by empty spaces . Their average size is 1400 of an inch . Their sides , although they thicken by the successive deposit of new matter , never ...
... quantity of granular matter , which sometimes fills them wholly , and sometimes is separated by empty spaces . Their average size is 1400 of an inch . Their sides , although they thicken by the successive deposit of new matter , never ...
Página 38
... quantity of sap . In plants of a dry nature , they are frequently so small as to be scarcely discoverable ; while in succulent plants they are so large as to approach the size of cells , as in the stem of Tropaeolum majus . They are ...
... quantity of sap . In plants of a dry nature , they are frequently so small as to be scarcely discoverable ; while in succulent plants they are so large as to approach the size of cells , as in the stem of Tropaeolum majus . They are ...
Página 47
... quantities of extremely minute particles which do not become blue upon the application of iodine , but which have a rapid motion upon their own axis . Of these little more is known than that they exist . CHAPTER II . OF THE COMPOUND ...
... quantities of extremely minute particles which do not become blue upon the application of iodine , but which have a rapid motion upon their own axis . Of these little more is known than that they exist . CHAPTER II . OF THE COMPOUND ...
Página 58
... quantity of resin , " & c . : The surface of the epidermis is either perfectly smooth , or furnished with numerous processes , consisting of cellular tissue in different states of combination , which may be arranged under the heads of ...
... quantity of resin , " & c . : The surface of the epidermis is either perfectly smooth , or furnished with numerous processes , consisting of cellular tissue in different states of combination , which may be arranged under the heads of ...
Índice
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27 | |
43 | |
100 | |
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121 | |
218 | |
320 | |
330 | |
337 | |
351 | |
358 | |
372 | |
475 | |
480 | |
258 | |
277 | |
289 | |
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557 | |
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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