An Introduction to Botany |
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Page 3
... cellules of the leaf of Oncidium altissimum ; it is the opinion of many that it is hollow in the case of spiral vessels . Fibre has a constant tendency to anastomosing , in consequence of which reticulated appearances are occasionally ...
... cellules of the leaf of Oncidium altissimum ; it is the opinion of many that it is hollow in the case of spiral vessels . Fibre has a constant tendency to anastomosing , in consequence of which reticulated appearances are occasionally ...
Page 4
... cellules of cellular tissue ; and the partitions are caused by the cohesion of their sides , as may be easily proved by boiling the pith a short time , when the cellules readily separate from each other . In pulpy fruits , or in those ...
... cellules of cellular tissue ; and the partitions are caused by the cohesion of their sides , as may be easily proved by boiling the pith a short time , when the cellules readily separate from each other . In pulpy fruits , or in those ...
Page 5
... cellules into a real articulated tissue , as in the pith of the Nelumbium ( fig . 3. ) . " This statement is now so well known to have been founded upon inaccurate observation , and such pores or slits are so universally admitted to be ...
... cellules into a real articulated tissue , as in the pith of the Nelumbium ( fig . 3. ) . " This statement is now so well known to have been founded upon inaccurate observation , and such pores or slits are so universally admitted to be ...
Page 6
... cellule containing a single drop of coloured fluid which gleams through the white shining membrane of the cellules , and produces the flickering lustre that is per- ceived . The colouring matter of the cellular tissue is fre- quently ...
... cellule containing a single drop of coloured fluid which gleams through the white shining membrane of the cellules , and produces the flickering lustre that is per- ceived . The colouring matter of the cellular tissue is fre- quently ...
Page 7
... cellules pullulate . The cellules develope , in some cases , with great rapidity . I have seen Lupinus polyphyllus grow in length , at the rate of an inch and a half a day . The leaf of Urania speciosa has been found by Mulder to ...
... cellules pullulate . The cellules develope , in some cases , with great rapidity . I have seen Lupinus polyphyllus grow in length , at the rate of an inch and a half a day . The leaf of Urania speciosa has been found by Mulder to ...
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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.