An Introduction to Botany |
From inside the book
Results 1-5 of 64
Page 5
... petals , as , for instance , in the stripes of tulips and carnations , which could not be the case if cellular tissue were perforated by such holes as have been described ; for in that case colours would necessarily run together . One ...
... petals , as , for instance , in the stripes of tulips and carnations , which could not be the case if cellular tissue were perforated by such holes as have been described ; for in that case colours would necessarily run together . One ...
Page 21
... petals and filaments . Mirbel states them to be sometimes as much as the 288th of an inch in diameter ; Hedwig finds them , in some cases , not exceeding the 3000th ; a very common size is the 1000th . An irritability of a curious kind ...
... petals and filaments . Mirbel states them to be sometimes as much as the 288th of an inch in diameter ; Hedwig finds them , in some cases , not exceeding the 3000th ; a very common size is the 1000th . An irritability of a curious kind ...
Page 44
... petals , upon which they almost always exist in great quantities . Link remarks , that the petals of Plantago , which are destitute of papillæ , are also without the usual satiny lustre of those organs . When the papillæ are much ...
... petals , upon which they almost always exist in great quantities . Link remarks , that the petals of Plantago , which are destitute of papillæ , are also without the usual satiny lustre of those organs . When the papillæ are much ...
Page 117
... petals . Like the sepals , they are either united by their margins , or distinct ; but , unlike the calyx , they are rarely green , being for the most part either white , or of some colour , such as red , blue , or yellow , or of any of ...
... petals . Like the sepals , they are either united by their margins , or distinct ; but , unlike the calyx , they are rarely green , being for the most part either white , or of some colour , such as red , blue , or yellow , or of any of ...
Page 118
... petals adhere to the bases of the stamens , so as to form a sort of spurious monopetalous corolla , as in Malva and Camellia , such a corolla has been occasionally called catapetalous ; but this term is never used , all such corollas ...
... petals adhere to the bases of the stamens , so as to form a sort of spurious monopetalous corolla , as in Malva and Camellia , such a corolla has been occasionally called catapetalous ; but this term is never used , all such corollas ...
Other editions - View all
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.