An Introduction to Botany |
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Page 39
... petioles of the gooseberry ; if longer and finer still , the term is pinnate , as in Hieracium Pilosella ; if the branches are themselves pinnate , as in Hieracium undulatum , the hairs are then said to be plumose . It D 4 CHAP . II ...
... petioles of the gooseberry ; if longer and finer still , the term is pinnate , as in Hieracium Pilosella ; if the branches are themselves pinnate , as in Hieracium undulatum , the hairs are then said to be plumose . It D 4 CHAP . II ...
Page 41
... highly developed , upon the petioles and the backs of the leaves of Ferns . They consist of cellular tissue alone , without any vascular bundles , and are known from leaves not only by CHAP . II . COMPOUND ORGANS IN FLOWERING PLANTS . 41.
... highly developed , upon the petioles and the backs of the leaves of Ferns . They consist of cellular tissue alone , without any vascular bundles , and are known from leaves not only by CHAP . II . COMPOUND ORGANS IN FLOWERING PLANTS . 41.
Page 43
... petiole , and are usually cylin- drical or conical ; in Cruciferous plants they are little roundish shining bodies , arising from just below the base of the ova- rium ; in the leafless Acacias , they are a little depressed , with a ...
... petiole , and are usually cylin- drical or conical ; in Cruciferous plants they are little roundish shining bodies , arising from just below the base of the ova- rium ; in the leafless Acacias , they are a little depressed , with a ...
Page 50
... petiole , the leaf itself , have all been remarked producing them . On the leaf they usually proceed from the margin , as in Malaxis paludosa , where they form minute granulations , first deter- mined to be buds by Professor Henslow ...
... petiole , the leaf itself , have all been remarked producing them . On the leaf they usually proceed from the margin , as in Malaxis paludosa , where they form minute granulations , first deter- mined to be buds by Professor Henslow ...
Page 51
... petiole is dilated and membranous like the inner scales of the bud ; and , finally , perfectly formed leaves complete the series of transitions . Among the varieties of root is sometimes classed what botanists call a bulb ; a scaly body ...
... petiole is dilated and membranous like the inner scales of the bud ; and , finally , perfectly formed leaves complete the series of transitions . Among the varieties of root is sometimes classed what botanists call a bulb ; a scaly body ...
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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.