An Introduction to Botany |
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Page vi
... means , as some suppose , a science for the idle philosopher in his closet ; neither is it merely an amusing accom- plishment , as others appear to think ; on the con- trary , its field is in the midst of meadows , and gardens , and ...
... means , as some suppose , a science for the idle philosopher in his closet ; neither is it merely an amusing accom- plishment , as others appear to think ; on the con- trary , its field is in the midst of meadows , and gardens , and ...
Page vii
... means so clearly defined as could be wished . To explain those prin- ciples , to adduce the evidence by which their truth is supposed to be proved , or the reasoning upon which they are based in cases where direct proof is unattainable ...
... means so clearly defined as could be wished . To explain those prin- ciples , to adduce the evidence by which their truth is supposed to be proved , or the reasoning upon which they are based in cases where direct proof is unattainable ...
Page xi
... means . While the MSS . has been going through the press , my table has been covered with works illustrating the fundamental principles of the science , of scarcely any of which has it been possible to make the slightest use . This I ...
... means . While the MSS . has been going through the press , my table has been covered with works illustrating the fundamental principles of the science , of scarcely any of which has it been possible to make the slightest use . This I ...
Page 5
... means of escape , and that the limits of colour are often very accurately defined in petals , as , for instance , in the stripes of tulips and carnations , which could not be the case if cellular tissue were perforated by such holes as ...
... means of escape , and that the limits of colour are often very accurately defined in petals , as , for instance , in the stripes of tulips and carnations , which could not be the case if cellular tissue were perforated by such holes as ...
Page 14
... means in a state of final separation , each of the finest fibres that meet the naked eye being in reality a bundle of tubes . While , however , some are of this extremely small size , others have a diameter as considerable as that of ...
... means in a state of final separation , each of the finest fibres that meet the naked eye being in reality a bundle of tubes . While , however , some are of this extremely small size , others have a diameter as considerable as that of ...
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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.