An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 páginas |
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Resultados 1-5 de 94
Página 11
... manner in which cellular tissue is generated and grows , would appear to differ in different plants . Amici says that the new tubes of Chara appear like young buds , from the points or axils of pre - existing tubes , an observation ...
... manner in which cellular tissue is generated and grows , would appear to differ in different plants . Amici says that the new tubes of Chara appear like young buds , from the points or axils of pre - existing tubes , an observation ...
Página 12
... manner into two other cells , the terminal of which alone lengthens , to be again bisected in its turn . Schleiden's ideas as to the origin of cells are still different from all these : see page 20 . The bladders develope , in some ...
... manner into two other cells , the terminal of which alone lengthens , to be again bisected in its turn . Schleiden's ideas as to the origin of cells are still different from all these : see page 20 . The bladders develope , in some ...
Página 34
... manner be considered as spiral vessels , whose internal spire , instead of snapping into short lengths as the membrane extends , accommodates itself to the growth of the latter by separating its coils , which thus gain an irregular ...
... manner be considered as spiral vessels , whose internal spire , instead of snapping into short lengths as the membrane extends , accommodates itself to the growth of the latter by separating its coils , which thus gain an irregular ...
Página 46
... manner unknown to chemists , into sugar or gum . Sugar makes its appearance as a transparent fluid , which seems as clear as water , is not rendered turbid by alcohol , and is coloured by tincture of iodine , according to the greater or ...
... manner unknown to chemists , into sugar or gum . Sugar makes its appearance as a transparent fluid , which seems as clear as water , is not rendered turbid by alcohol , and is coloured by tincture of iodine , according to the greater or ...
Página 48
... manner in which they are combined into those masses which constitute the external or compound organs , or in other words the parts which present themselves to us under the form of roots , stems , leaves , flowers , and fruit , and which ...
... manner in which they are combined into those masses which constitute the external or compound organs , or in other words the parts which present themselves to us under the form of roots , stems , leaves , flowers , and fruit , and which ...
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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 colour common considered consists containing corolla cotyledons cyclosis developement dicotyledons direction disk distinct Dutrochet elongated embryo epidermis exist external 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 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 sometimes species specimens spiral vessels stamens stem stigma stomates structure substance surface term terminating tion tree tubes vascular vegetable veins wood woody tissue yellow
Passagens conhecidas
Página 593 - Dr. Ure's Dictionary of Arts, Manufactures, and Mines : Containing a clear Exposition of their Principles and Practice.