An Introduction to BotanyLongman, 1839 - 594 páginas |
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Página 2
... applied to the cuticle of the leaves of some plants , and only separable after mace- ration ; it is probable that it constitutes the whole exterior surface of all plants , and that it is even drawn over the sacs which constitute hairs ...
... applied to the cuticle of the leaves of some plants , and only separable after mace- ration ; it is probable that it constitutes the whole exterior surface of all plants , and that it is even drawn over the sacs which constitute hairs ...
Página 23
... applied to another fibre , or ruptured by the presence of an adjoining tube , as we sometimes find the conical extremity of another tube inserted into the aperture . " Many vegetable anatomists consider it a mere form of cel- lular ...
... applied to another fibre , or ruptured by the presence of an adjoining tube , as we sometimes find the conical extremity of another tube inserted into the aperture . " Many vegetable anatomists consider it a mere form of cel- lular ...
Página 29
... applied to it . ( Plate II . fig . 10. ) This I think conclusive as to the roundness of the fibre ; but it does not determine the question of its being tubular or solid . Bischoff , who has in- vestigated the nature of spiral vessels ...
... applied to it . ( Plate II . fig . 10. ) This I think conclusive as to the roundness of the fibre ; but it does not determine the question of its being tubular or solid . Bischoff , who has in- vestigated the nature of spiral vessels ...
Página 63
... applied to a surface covered with the rudiments of leaves . Scurfs are the poils en écusson ( pili scutati ) of De Candolle . Ramenta ( Vaginella ) are thin , brown , foliaceous scales , appearing sometimes in great abundance upon young ...
... applied to a surface covered with the rudiments of leaves . Scurfs are the poils en écusson ( pili scutati ) of De Candolle . Ramenta ( Vaginella ) are thin , brown , foliaceous scales , appearing sometimes in great abundance upon young ...
Página 64
... applied to them ( Dec. Théor . Elém . ed . 2 . 376. Link , Elém . 240. ) ; but that word was employed by Linnæus to designate any stiff bristle - like process , as the spines of the Cactus , the divaricating hairs of Malpighia , and the ...
... applied to them ( Dec. Théor . Elém . ed . 2 . 376. Link , Elém . 240. ) ; but that word was employed by Linnæus to designate any stiff bristle - like process , as the spines of the Cactus , the divaricating hairs of Malpighia , and the ...
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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