On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 14
... face to face they form a hollow almond - shaped box . Inside this lies the next younger pair of stipules ; and the rest of the space is occu- pied by the young leaf , which is conduplicate , or folded on itself down the middle , like a ...
... face to face they form a hollow almond - shaped box . Inside this lies the next younger pair of stipules ; and the rest of the space is occu- pied by the young leaf , which is conduplicate , or folded on itself down the middle , like a ...
Pagina 74
... face to face , A P FIG . 111 . B FIG . 112 . B P NEGUNDO ACEROIDES . Nat . size . FIG . 111. - Portion of shoot ( A ) with the bases of the two opposite leaf - stalks ( P ) . FIG . 112. - Vertical section of same , showing the axillary ...
... face to face , A P FIG . 111 . B FIG . 112 . B P NEGUNDO ACEROIDES . Nat . size . FIG . 111. - Portion of shoot ( A ) with the bases of the two opposite leaf - stalks ( P ) . FIG . 112. - Vertical section of same , showing the axillary ...
Pagina 75
... face to face , but not overlapping or interlocking B P " FIG . 113. - SOPHORA JAPONICA . Two Nat . size . nodes of a stem , the lower showing the base of the petiole ( P ' ) with the small round scar of the fallen stipule . In vertical ...
... face to face , but not overlapping or interlocking B P " FIG . 113. - SOPHORA JAPONICA . Two Nat . size . nodes of a stem , the lower showing the base of the petiole ( P ' ) with the small round scar of the fallen stipule . In vertical ...
Pagina 85
... face with pale brown hairs like a thick fur , while they are glabrous and dull olive - green externally . In Guaiacum officinale ( figs . 131 , 132 ) the stipules are axillary and connate into a rounded piece on each side . of the stem ...
... face with pale brown hairs like a thick fur , while they are glabrous and dull olive - green externally . In Guaiacum officinale ( figs . 131 , 132 ) the stipules are axillary and connate into a rounded piece on each side . of the stem ...
Pagina 90
... ) , the leaves belonging to which have become completely aborted . The outer stipule or cap is brown or reddish brown , and secretes a gummy substance on its inner sur- This face , besmearing the bud as in the Horse 90 BUDS AND STIPULES.
... ) , the leaves belonging to which have become completely aborted . The outer stipule or cap is brown or reddish brown , and secretes a gummy substance on its inner sur- This face , besmearing the bud as in the Horse 90 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...