On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 4
... more or less arranged as shown in fig . 2 . The works referred to by these numbers ( 1 , & c . ) are given in the ' Bibliography ' at the end of the book . The figure also shows how admirably the peculiar form of 4 BUDS AND STIPULES.
... more or less arranged as shown in fig . 2 . The works referred to by these numbers ( 1 , & c . ) are given in the ' Bibliography ' at the end of the book . The figure also shows how admirably the peculiar form of 4 BUDS AND STIPULES.
Pagina 9
... shown by the presence of a ter- minal scar , due to the fall of the true terminal bud . I have found that even at the end of May the terminal buds of the Lime have almost all died and fallen away . But why do the terminal buds wither ...
... shown by the presence of a ter- minal scar , due to the fall of the true terminal bud . I have found that even at the end of May the terminal buds of the Lime have almost all died and fallen away . But why do the terminal buds wither ...
Pagina 12
... shown in fig . 12 , with the fold along the edge from m to h , and then unfolded , the reason for the form of the coty- ledons becomes clear at once . Now let us test this ex- planation by another case . The Wallflower has a seed of ...
... shown in fig . 12 , with the fold along the edge from m to h , and then unfolded , the reason for the form of the coty- ledons becomes clear at once . Now let us test this ex- planation by another case . The Wallflower has a seed of ...
Pagina 14
... early develop- ment of the petiole . The young stages in the develop- ment of the leaf are shown in figs . 17 and 18 . Here it seems obvious that the peculiar form of the leaf is due to the form and arrangement of the 14 BUDS AND STIPULES.
... early develop- ment of the petiole . The young stages in the develop- ment of the leaf are shown in figs . 17 and 18 . Here it seems obvious that the peculiar form of the leaf is due to the form and arrangement of the 14 BUDS AND STIPULES.
Pagina 30
... showing stipules ( St ) connate at the base . Nat . size . FIG . 39. - Front view . FIG . 40. - Side view . Two leaflets of the compound leaf are shown . Where stipules are present the leaf has two , one. 30 BUDS AND STIPULES.
... showing stipules ( St ) connate at the base . Nat . size . FIG . 39. - Front view . FIG . 40. - Side view . Two leaflets of the compound leaf are shown . Where stipules are present the leaf has two , one. 30 BUDS AND STIPULES.
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Termeni și expresii frecvente
apex axil axillary buds axis base Beech Bentham blade brown Bud Protection bud-scales Candolle completely covered concave conduplicate connate stipules cotyledons developed edges exstipulate fifth folded foliaceous genera genus glabrous glands growing-point growth Guaiacum officinale hairs hairy Helianthemum Hornbeam Horse Chestnut Hypericum calycinum Illustrations inner instance lamina Lantana lateral buds Lathyrus Lathyrus Aphaca Lathyrus Nissolia leaf leaf-base leaf-blade leaf-stalk leaflets length less lobes lower membranous midrib Monocotyledons narrow node ocrea Opulus outer scales ovate pair of leaves pair of stipules pedestal persistent petiole Petteria PLANE Platanus plant Polygonum protect the bud protect the young Robinia scale fig scar sheath showing side slightly sometimes species St FIG st st stalk stem stipular stipules belonging stipules fig stipules St subulate tendrils terminal bud triangular Tulip Tree upper Viburnum Viburnum Lantana Viburnum Opulus Whitebeam winter winter-bud Wych Elm young bud young leaves Young Shoot younger
Pasaje populare
Pagina 191 - The acacia, however, bears hollow thorns, while each leaflet produces honey in a craterformed gland at the base, and a small, sweet, pearshaped body at the tip. In consequence, it is inhabited by myriads of a small ant, which nests in the hollow thorns, and thus finds meat, drink, and lodging all provided for it. These ants are continually roaming over the plant, and constitute a most efficient body-guard, not only driving off the leaf-cutting ants, but, in Belt's opinion, rendering the leaves less...
Pagina 233 - ... the presence, the uses, and the forms of stipules, and the structure of buds in some of our common trees, shrubs, and herbs. If I shall have induced any of my readers to look at them for themselves in the coming spring they will, I am sure, be amply rewarded. They will often be reminded of Tennyson's profound remark about Nature : So careless of the single life, So careful of the type she seems...
Pagina 68 - Plants, p. 286. -purpwrea, which naturally sink at night (the plants growing out of doors), and looked at them early on several successive mornings, after they had assumed their diurnal positions. The difference in the amount of dew on the pinned-open leaflets and on those which had gone to sleep was generally conspicuous, the latter being sometimes absolutely dry. whilst the leaflets which had been horizontal were coated with large beads of dew. This shows how much cooler the leaflets fully exposed...