On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 16
... longer ; but the buds of the FIG . 19. - WINTER - BUD OF BEECH , x 2 . FIG . 20. - OAK BUD , x 6 . Beech ( fig . 19 ) are much longer than those of the Oak ( fig . 20 ) . The young leaves of the Beech are able to lie straight in the bud ...
... longer ; but the buds of the FIG . 19. - WINTER - BUD OF BEECH , x 2 . FIG . 20. - OAK BUD , x 6 . Beech ( fig . 19 ) are much longer than those of the Oak ( fig . 20 ) . The young leaves of the Beech are able to lie straight in the bud ...
Pagina 50
... longer than the stipules , and the common stalk or leaf - base is longer in proportion . This is still more the case in the next two ( figs . 73 , 74 ) . In the twelfth ( fig . 75 ) the leaf - stalk is abruptly trun- cated ; and in the ...
... longer than the stipules , and the common stalk or leaf - base is longer in proportion . This is still more the case in the next two ( figs . 73 , 74 ) . In the twelfth ( fig . 75 ) the leaf - stalk is abruptly trun- cated ; and in the ...
Pagina 104
... longer , but otherwise not materially different . The third scale attains the full length of the bud , the petiole being more acuminate than in the previous scale , and longer than its stipules . The fourth scale is precisely similar ...
... longer , but otherwise not materially different . The third scale attains the full length of the bud , the petiole being more acuminate than in the previous scale , and longer than its stipules . The fourth scale is precisely similar ...
Pagina 108
... longer and paler- often pinkish towards the end . The inner ones have a delicate fringe along their edges . The outside of the bud is very sticky . The scales are followed by normal leaves . Each segment of the leaf is conduplicate ...
... longer and paler- often pinkish towards the end . The inner ones have a delicate fringe along their edges . The outside of the bud is very sticky . The scales are followed by normal leaves . Each segment of the leaf is conduplicate ...
Pagina 109
... longer and pointed ; the third . ( fig . 168 ) are longer than broad. ON THE STRUCTURE OF BUDS 109.
... longer and pointed ; the third . ( fig . 168 ) are longer than broad. ON THE STRUCTURE OF BUDS 109.
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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...