An Introduction to Botany |
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Page 14
... size sticking to them in a scattered manner . ( Plate II . fig . 3 , 4 , 5. ) These granules have been , and are still considered by many anatomists as pores in the sides of the tissue . They have 14 BOOK I. ORGANOGRAPHY . Seed.
... size sticking to them in a scattered manner . ( Plate II . fig . 3 , 4 , 5. ) These granules have been , and are still considered by many anatomists as pores in the sides of the tissue . They have 14 BOOK I. ORGANOGRAPHY . Seed.
Page 15
... manner . 3. The third kind of woody fibre is the glandular . This has hitherto only been noticed in Coniferæ , in which it is uniformly found in every species . Its dimensions are more considerable than that of either of the last ...
... manner . 3. The third kind of woody fibre is the glandular . This has hitherto only been noticed in Coniferæ , in which it is uniformly found in every species . Its dimensions are more considerable than that of either of the last ...
Page 16
... manner in which these perforations are caused will be found in Plate II . fig . 7 . M. Adolphe Brongniart has rightly stated , that there exists in Gnetum Gnemon a form of tissue exactly the same as in Coniferæ . ( Voyage de Freycinet ...
... manner in which these perforations are caused will be found in Plate II . fig . 7 . M. Adolphe Brongniart has rightly stated , that there exists in Gnetum Gnemon a form of tissue exactly the same as in Coniferæ . ( Voyage de Freycinet ...
Page 20
... manner ; and in 1824 M. Dutrochet asserts , that they end in conical spires , the point of which becomes very acute ; but one would not suppose , judging from the figure given by the latter writer , that he had seen the terminations ...
... manner ; and in 1824 M. Dutrochet asserts , that they end in conical spires , the point of which becomes very acute ; but one would not suppose , judging from the figure given by the latter writer , that he had seen the terminations ...
Page 24
... manner , and being divided internally by transverse partitions . Usually , in addition to the dots , there is distinctly visible an oblique or annular transparent line upon the walls of the vessel . ( Plate II . fig . 15. 17. ) Hence ...
... manner , and being divided internally by transverse partitions . Usually , in addition to the dots , there is distinctly visible an oblique or annular transparent line upon the walls of the vessel . ( Plate II . fig . 15. 17. ) Hence ...
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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.