An Introduction to Botany |
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Page 11
... tubes that form the elaters of Jungermannia , apparently con- stitutes another form of tissue of this order . ( Plate I. fig . 17. ) B. Fibre without Membrane . 7. Spiral fibres repressed by mucus , but having sufficient elasticity to ...
... tubes that form the elaters of Jungermannia , apparently con- stitutes another form of tissue of this order . ( Plate I. fig . 17. ) B. Fibre without Membrane . 7. Spiral fibres repressed by mucus , but having sufficient elasticity to ...
Page 12
... tubes , Mirb .; Tissu cellu- laire allongé or ligneux , Fr .; Vaisseaux propres fasciculaires , Mirb .; Ligneæ fistula , Malpighi ; Fasergefässe , or Baströhren , * According to the last mentioned author , the fibres themselves are ...
... tubes , Mirb .; Tissu cellu- laire allongé or ligneux , Fr .; Vaisseaux propres fasciculaires , Mirb .; Ligneæ fistula , Malpighi ; Fasergefässe , or Baströhren , * According to the last mentioned author , the fibres themselves are ...
Page 13
... tubes , tapering acutely to each end , lying in bundles , and , like the cellular tissue , having no direct communication with each other , except by invisible pores . ( Plate II . fig . 1. a , b ; 2. 5. a , & c . ) Many vegetable ...
... tubes , tapering acutely to each end , lying in bundles , and , like the cellular tissue , having no direct communication with each other , except by invisible pores . ( Plate II . fig . 1. a , b ; 2. 5. a , & c . ) Many vegetable ...
Page 14
... tubes . While , however , some are of this extremely small size , others have a diameter as considerable as that of ordinary cellular tissue itself ; in Coniferæ the tubes are often or ʊ of an inch in diameter , and in the Lime they ...
... tubes . While , however , some are of this extremely small size , others have a diameter as considerable as that of ordinary cellular tissue itself ; in Coniferæ the tubes are often or ʊ of an inch in diameter , and in the Lime they ...
Page 15
... tubes are large , and the appearance very conspicuous . ( Annales des Sciences , vol . xvi . tab . 21. ) But I think it possible to demonstrate that this is an optical deception , and that the supposed perforations are of the same ...
... tubes are large , and the appearance very conspicuous . ( Annales des Sciences , vol . xvi . tab . 21. ) But I think it possible to demonstrate that this is an optical deception , and that the supposed perforations are of the same ...
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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.