An Introduction to BotanyLongman, 1839 - 594 páginas |
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Página 8
... Mirbel has lately reduced the first of these suppositions to very nearly a demonstration ; in a most admirable memoir on the development of Marchantia he speaks to the following effect . I at first found nothing but a mass of tissue ...
... Mirbel has lately reduced the first of these suppositions to very nearly a demonstration ; in a most admirable memoir on the development of Marchantia he speaks to the following effect . I at first found nothing but a mass of tissue ...
Página 9
John Lindley. Mirbel were chiefly owing to the developement of a spiral thread in the inside of the tissue ; he , however , did not con- sider it in that light . But although the origin of the different forms of tissue may be shown to be ...
John Lindley. Mirbel were chiefly owing to the developement of a spiral thread in the inside of the tissue ; he , however , did not con- sider it in that light . But although the origin of the different forms of tissue may be shown to be ...
Página 10
... Mirbel states that " the sides of the bladders are sometimes riddled full of holes ( fig . 4. ) , the aperture of which does not exceed the of a millimetre ( or of half a line ) ; or are less . frequently pierced with transverse slits ...
... Mirbel states that " the sides of the bladders are sometimes riddled full of holes ( fig . 4. ) , the aperture of which does not exceed the of a millimetre ( or of half a line ) ; or are less . frequently pierced with transverse slits ...
Página 11
... Mirbel that the same thing occurs in the case of Marchantia polymorpha . That learned botanist , in the course of his inquiries into the structure of this plant , found that in all cases one tube or utricle generated another externally ...
... Mirbel that the same thing occurs in the case of Marchantia polymorpha . That learned botanist , in the course of his inquiries into the structure of this plant , found that in all cases one tube or utricle generated another externally ...
Página 17
... Mirbel has shown that the curious cells which line the anther of the common gourd are continuous membranes till just before the expansion of the flower , when they very suddenly enlarge , and their sides divide into narrow ribands or ...
... Mirbel has shown that the curious cells which line the anther of the common gourd are continuous membranes till just before the expansion of the flower , when they very suddenly enlarge , and their sides divide into narrow ribands or ...
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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