An Introduction to Botany |
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Page 3
... growing membrane . In direction it is variable ( Plates I. and II . ) ; sometimes it is straight , and attains a considerable length , as in some fungi ; some- times it is short and straight , but hooked at the apex , as in the lining ...
... growing membrane . In direction it is variable ( Plates I. and II . ) ; sometimes it is straight , and attains a considerable length , as in some fungi ; some- times it is short and straight , but hooked at the apex , as in the lining ...
Page 4
... grow so firmly together , that their sides really form in their union but one membrane . Cellules are destitute of all perforation or visible pores , so that each is completely closed up from its neighbour , as far as we can see ...
... grow so firmly together , that their sides really form in their union but one membrane . Cellules are destitute of all perforation or visible pores , so that each is completely closed up from its neighbour , as far as we can see ...
Page 6
... grow older , dries up , while the granules themselves gradually change to olive green , and finally to brown . Kieser distinguishes three sorts of globules among tissue : -1 . Round extremely transparent bodies , of a more or less ...
... grow older , dries up , while the granules themselves gradually change to olive green , and finally to brown . Kieser distinguishes three sorts of globules among tissue : -1 . Round extremely transparent bodies , of a more or less ...
Page 7
... 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 lengthen at the rate of from one and a half to three and a half lines per hour , and even as much as from four to five ...
... 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 lengthen at the rate of from one and a half to three and a half lines per hour , and even as much as from four to five ...
Page 25
... growing in knots or parts that are subject to an interrupted kind of developement . They may be found figured in Mirbel's Elémens , tab . x . fig . 15 .; and in Kieser , fig . 56. and 57 . SECT . IV . Of spurious elementary Organs ...
... growing in knots or parts that are subject to an interrupted kind of developement . They may be found figured in Mirbel's Elémens , tab . x . fig . 15 .; and in Kieser , fig . 56. and 57 . SECT . IV . Of spurious elementary Organs ...
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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.