An Introduction to BotanyLongman, Orme, Brown, Green, and Longmans, 1839 - 594 páginas |
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Página vi
... facts and reasonings upon which he is expected to rely . To this succeeds VEGETABLE PHYSIOLOGY ( Book II . ) ; or the History of the vital phenomena that have been observed both in plants in general , and in particular species , and ...
... facts and reasonings upon which he is expected to rely . To this succeeds VEGETABLE PHYSIOLOGY ( Book II . ) ; or the History of the vital phenomena that have been observed both in plants in general , and in particular species , and ...
Página vii
... facts necessary to acquire a just notion of its structure and affinities ; it is indis- pensable that the principles of making descriptions should be clearly understood , both to prevent their being too general to answer the intended ...
... facts necessary to acquire a just notion of its structure and affinities ; it is indis- pensable that the principles of making descriptions should be clearly understood , both to prevent their being too general to answer the intended ...
Página 2
... fact . The Box , and the young annual shoots of Sambucus nigra , are especially noticed as well suited to show this structure ; it will be seen to form a considerable part of the mass of the albumen of Alstromeria salsilla , see fig . 2 ...
... fact . The Box , and the young annual shoots of Sambucus nigra , are especially noticed as well suited to show this structure ; it will be seen to form a considerable part of the mass of the albumen of Alstromeria salsilla , see fig . 2 ...
Página 16
... fact it is extremely common in numerous species , and Purkinje has shown , by a series of excellent observations and drawings , that it constitutes the lining of the valves of almost all anthers . The forms under which it exists in ...
... fact it is extremely common in numerous species , and Purkinje has shown , by a series of excellent observations and drawings , that it constitutes the lining of the valves of almost all anthers . The forms under which it exists in ...
Página 29
... fact may , however , be explained upon the supposition that they rise in the channels formed by the approximation of cylin- drical fibres , and not in the fibres themselves ; in which case there could be little doubt that the fibres are ...
... fact may , however , be explained upon the supposition that they rise in the channels formed by the approximation of cylin- drical fibres , and not in the fibres themselves ; in which case there could be little doubt that the fibres are ...
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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