An Introduction to BotanyLongman, 1839 - 594 páginas |
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Página 1
... oxygen , hydrogen , and carbon , with occasionally nitrogen or azote , combined in various proportions : their organic basis is solidified mucus , either in an independent state , or organized in the form of membrane and fibre . Organic ...
... oxygen , hydrogen , and carbon , with occasionally nitrogen or azote , combined in various proportions : their organic basis is solidified mucus , either in an independent state , or organized in the form of membrane and fibre . Organic ...
Página 45
... oxygen of the at- mosphere , they evidently produce little sprouts like themselves from their sides . Turpin states that , if examined after fer- mentation has been going on for some hours , they will be found to have each formed ...
... oxygen of the at- mosphere , they evidently produce little sprouts like themselves from their sides . Turpin states that , if examined after fer- mentation has been going on for some hours , they will be found to have each formed ...
Página 190
... oxygen , but no nitrogen . - Bibl . Univers . 1830. 45 . The matter contained in the granules is called the fovilla . Under common magnifiers it appears like a turbid fluid ; under glasses of greater power it has been found to consist ...
... oxygen , but no nitrogen . - Bibl . Univers . 1830. 45 . The matter contained in the granules is called the fovilla . Under common magnifiers it appears like a turbid fluid ; under glasses of greater power it has been found to consist ...
Página 278
... oxygen , combining with the carbon of the seed , forms carbonic acid , which is expelled ; nutritious food for the young parts is prepared by the conversion of starch into sugar ; and the vital action of the embryo commences . It ...
... oxygen , combining with the carbon of the seed , forms carbonic acid , which is expelled ; nutritious food for the young parts is prepared by the conversion of starch into sugar ; and the vital action of the embryo commences . It ...
Página 283
... subsequent period it ceases to decompose carbonic acid , gains oxygen , loses its green colour , assumes the rich ruddy glow of maturity ; and the peduncle , no longer a passage for fluids , dries BOOK II . 283 GENERAL CONSIDERATIONS .
... subsequent period it ceases to decompose carbonic acid , gains oxygen , loses its green colour , assumes the rich ruddy glow of maturity ; and the peduncle , no longer a passage for fluids , dries BOOK II . 283 GENERAL CONSIDERATIONS .
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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