An Introduction to Botany |
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Page xii
... common stock for mutual benefit ; and it is only in the case of debatable opinions , or of any recent and unconfirmed observations , that it really interests the world that authorities should be quoted at all . In the language of a ...
... common stock for mutual benefit ; and it is only in the case of debatable opinions , or of any recent and unconfirmed observations , that it really interests the world that authorities should be quoted at all . In the language of a ...
Page 1
... or azote , combined in various proportions : their organic basis is membrane and fibre . The latter only are here to be considered . B It is a common opinion that membrane only is the ORGANOGRAPHY; OR, OF THE STRUCTURE OF PLANTS.
... or azote , combined in various proportions : their organic basis is membrane and fibre . The latter only are here to be considered . B It is a common opinion that membrane only is the ORGANOGRAPHY; OR, OF THE STRUCTURE OF PLANTS.
Page 3
... common direction is spiral . Whether it is solid or hollow has not been fully de- monstrated ; Dr. Purkinje asserts that it is hollow , as will be hereafter mentioned ; but there can be no doubt that it is also , at least sometimes ...
... common direction is spiral . Whether it is solid or hollow has not been fully de- monstrated ; Dr. Purkinje asserts that it is hollow , as will be hereafter mentioned ; but there can be no doubt that it is also , at least sometimes ...
Page 8
... common , and was , till lately , supposed to be the only kind that exists . This sort of tissue is to be considered the basis of vegetable structure , and the only form indispen- sible to a plant . Many plants consist of nothing else ...
... common , and was , till lately , supposed to be the only kind that exists . This sort of tissue is to be considered the basis of vegetable structure , and the only form indispen- sible to a plant . Many plants consist of nothing else ...
Page 16
... of the ligneous part of all plants ; it is common in bark , and it forms the principal portion of the veins of leaves , to which it gives stiffness and tenacity . 6 SECT . III . Of Vascular Tissue . 8 16 BOOK I. ORGANOGRAPHY .
... of the ligneous part of all plants ; it is common in bark , and it forms the principal portion of the veins of leaves , to which it gives stiffness and tenacity . 6 SECT . III . Of Vascular Tissue . 8 16 BOOK I. ORGANOGRAPHY .
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Common terms and phrases
acid Adolphe Brongniart albumen anther apex appearance appendages arrangement axis bark base become body botanists bractea branches Brown buds called calyx Cand Candolle carpella cavity cells cellular tissue cellules centre chalaza characters Class colour common Compositæ compound considered consists corolla cotyledons cuticle dehiscence developed dicotyledons direction disk dissepiments distinct distinguished ducts earth elongated embryo exist extremely filament fleshy flowers fluid fructification fruit genera genus granules hairs hilum indehiscent inflorescence integuments kind latter leaf leaflets leaves Linnæus lobes margin medullary rays membrane Mirb Mirbel modifications monocotyledons nature observed organs ovarium ovula ovulum oxygen parenchyma peculiar pericarpium petals petiole pistillum pith placenta plants Plate plumula pollen produced racters radicle receptacle remarkable roots seed sepals separate side sometimes species spiral vessels sporules stamens stem stigma stomata structure substance surface term terminating testa tree tube valves vascular vegetation veins wood woody fibre
Popular passages
Page 6 - Thysanotus fasciçularii, the flowers of which are of a deep brilliant violet, with a remarkably satiny lustre, that appearance will be found to arise from each particular cell containing a single drop of...
Page 217 - ... in its substance, and of evaporating pores on its surface, enables the crude fluid sent from the roots to be elaborated and digested until it becomes the peculiar secretion of the species; the contraction of a branch and its leaves forms a flower ; the disintegration of the internal tissue of a petal forms an anther; the folding inwards of a leaf is sufficient to constitute a...
Page 525 - ... verging to green. Again, the ranunculus, which is originally of an intense yellow, sports into scarlet, red, purple, and almost any colour but blue. White flowers, which have a tendency to produce red, will never sport to blue, although they will to yellow ; the rose, for example, and chrysanthemums. It is also probable that white flowers with a tendency to produce blue, will not vary to yellow.