An Introduction to Botany |
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Page vi
... . The principles of such a science must necessarily be extremely complicated , and in certain branches , which have only for a short time occupied the atten- - tion of observers , or which depend upon obscure vi PREFACE .
... . The principles of such a science must necessarily be extremely complicated , and in certain branches , which have only for a short time occupied the atten- - tion of observers , or which depend upon obscure vi PREFACE .
Page viii
... principles of Organography being first exactly settled . Great difference of opi- nion exists among the most distinguished botanists , upon some points connected with this subject , so that it has been found expedient to enter ...
... principles of Organography being first exactly settled . Great difference of opi- nion exists among the most distinguished botanists , upon some points connected with this subject , so that it has been found expedient to enter ...
Page ix
... principles , because this has been con- stantly taken as illustrative of the separate functions of individual parts . Next follows TAXONOMY ( Book III . ) ; or some account of the Principles of Classification ; -a very important subject ...
... principles , because this has been con- stantly taken as illustrative of the separate functions of individual parts . Next follows TAXONOMY ( Book III . ) ; or some account of the Principles of Classification ; -a very important subject ...
Page x
... principles of making descriptions should be clearly understood , both to prevent their being too general to answer the intended purpose , or more prolix than is really requisite . It is the want of a knowledge of these rules that ...
... principles of making descriptions should be clearly understood , both to prevent their being too general to answer the intended purpose , or more prolix than is really requisite . It is the want of a knowledge of these rules that ...
Page xi
... principles of the science , of scarcely any of which has it been possible to make the slightest use . This I regret the more , as some of them are of high interest , especially with regard to Vegetable Anatomy . In the statements I have ...
... principles of the science , of scarcely any of which has it been possible to make the slightest use . This I regret the more , as some of them are of high interest , especially with regard to Vegetable Anatomy . In the statements I have ...
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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.