An Introduction to BotanyLongman, 1839 - 594 páginas |
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Página 14
... lobe towards one end ; and sometimes irregularly triangular , with the sides pressed in and the angles truncated . They are well represented in the plates of Adolphe Brongniart's memoir upon the organization of leaves , in the Annales ...
... lobe towards one end ; and sometimes irregularly triangular , with the sides pressed in and the angles truncated . They are well represented in the plates of Adolphe Brongniart's memoir upon the organization of leaves , in the Annales ...
Página 100
... lobes parallel with the stem , and the vessels are all confounded in an uniform mass . Gaudichaud represents the stem of some Malpighiaceous plants to be in like manner divided into a number of regular lobes , which however , actually ...
... lobes parallel with the stem , and the vessels are all confounded in an uniform mass . Gaudichaud represents the stem of some Malpighiaceous plants to be in like manner divided into a number of regular lobes , which however , actually ...
Página 109
... lobes , which appear to serve as reservoirs of nutriment to the * In the former editions of this work the turnip has been referred to a root . But , from the investigations of Turpin and others , there is no room to doubt that the ...
... lobes , which appear to serve as reservoirs of nutriment to the * In the former editions of this work the turnip has been referred to a root . But , from the investigations of Turpin and others , there is no room to doubt that the ...
Página 120
... lobes of the base of the leaf not only cohere with the stem , but pro- jecting beyond it , grow together , so as to resemble a leaf through which the stem has pierced : this is called being perfoliate . Frequently two opposite leaves ...
... lobes of the base of the leaf not only cohere with the stem , but pro- jecting beyond it , grow together , so as to resemble a leaf through which the stem has pierced : this is called being perfoliate . Frequently two opposite leaves ...
Página 130
... lobes . There is no difference in size in these ribs ; and in lobed leaves , which may be understood as simple leaves approaching composition , each rib has its own parti- cular set of veins . 56 The midrib ( fig . 56. 7 ) sends forth ...
... lobes . There is no difference in size in these ribs ; and in lobed leaves , which may be understood as simple leaves approaching composition , each rib has its own parti- cular set of veins . 56 The midrib ( fig . 56. 7 ) sends forth ...
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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