On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina x
... Length of Life of Leaves - Pine - Spruce - Silver Fir - Yew - Pinsapo -- Arau- caria - Care taken by Nature to protect Buds - Conclusion . 223 INDEX 235 FIG . LIST OF ILLUSTRATIONS EXPLANATION OF THE PLATES PLATE X BUDS AND STIPULES.
... Length of Life of Leaves - Pine - Spruce - Silver Fir - Yew - Pinsapo -- Arau- caria - Care taken by Nature to protect Buds - Conclusion . 223 INDEX 235 FIG . LIST OF ILLUSTRATIONS EXPLANATION OF THE PLATES PLATE X BUDS AND STIPULES.
Pagina xiii
... lengths . PAGE 29 30 338 39 30 31 • 43 , 44 Onobrychis sativa , showing stipules connate for the greater part of their lengths . 32 45 Shoot of Pondweed , showing Intrapetiolar Stipules ( after Bentham ) . 33 46 Ocrea of Polygonum ...
... lengths . PAGE 29 30 338 39 30 31 • 43 , 44 Onobrychis sativa , showing stipules connate for the greater part of their lengths . 32 45 Shoot of Pondweed , showing Intrapetiolar Stipules ( after Bentham ) . 33 46 Ocrea of Polygonum ...
Pagina 16
... length , or those of the Oak are the longer ; but the buds of the FIG . 19. - WINTER - BUD OF BEECH , x 22 . FIG . 20. - OAK BUD , × 6 . Beech ( fig . 19 ) are much longer than those of the Oak ( fig . 20 ) . The young leaves of the ...
... length , or those of the Oak are the longer ; but the buds of the FIG . 19. - WINTER - BUD OF BEECH , x 22 . FIG . 20. - OAK BUD , × 6 . Beech ( fig . 19 ) are much longer than those of the Oak ( fig . 20 ) . The young leaves of the ...
Pagina 18
... length of the roots . Similarly , when a tree is cut down the ground becomes covered with a thick growth of young shoots , springing up rapidly , at the expense of the nourish- ment stored up in the roots which remain in the ground ...
... length of the roots . Similarly , when a tree is cut down the ground becomes covered with a thick growth of young shoots , springing up rapidly , at the expense of the nourish- ment stored up in the roots which remain in the ground ...
Pagina 31
... length , as in Hedysarum esculentum ( figs . 41 , 42 ) , where Ľ L " -St " St St FIG . 41 . FIG . 42 HEDYSARUM ESCULENTUM . Nat . size . FIG . 41. - Apex of growing shoot , showing side view of stipules ; L ' , youngest , partly ...
... length , as in Hedysarum esculentum ( figs . 41 , 42 ) , where Ľ L " -St " St St FIG . 41 . FIG . 42 HEDYSARUM ESCULENTUM . Nat . size . FIG . 41. - Apex of growing shoot , showing side view of stipules ; L ' , youngest , partly ...
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apex axil axillary buds axis base Beech blade brown bud is protected bud-scales Candolle completely covered concave conduplicate connate stipules cotyledons developed edges Edition Exochorda exstipulate fifth folded foliaceous fourth genera genus glabrous glands growing-point growth Guaiacum officinale hairs hairy Helianthemum Hornbeam Horse Chestnut inner instance lamina Lantana lateral buds 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 shoot showing side slightly Smilax sometimes species St FIG St St stalk stem stipular stipules belonging stipules fig stipules St subulate tendrils terminal bud trees triangular Tulip Tree upper Viburnum Viburnum Lantana Viburnum Opulus Whitebeam winter winter-bud Wych Elm young bud young leaves younger
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Pagina 233 - So careless of the single life, So careful of the type she seems, and will be more and more struck with wonder and admiration at the variety and beauty of the provisions by which Nature preserves these tender and precious buds from the severity of winter, and prepares with loving care and rich profusion for the bright promise of spring and the glorious pageant of summer.
Pagina 194 - ASSISTANCE IN CLIMBING There are two ways in which stipules may assist in this respect, viz. (1) by being developed into tendrils, or (2) into more or less reversed spines. The case of the tendrils of Smilax is one which has occasioned much discussion, but I agree with Tyler (24) that the embryological, together with the anatomical, characters indicate that in Smilax the tendrils are true stipules, found in connection with the sheathing petiole. In Paliurvs australis (fig.
Pagina 4 - The figure also shows how admirably the peculiar form of the leaf is adapted to their mode of growth. In many other plants also the leaves, as they develop, successively protect the younger ones. A somewhat similar case is afforded by Uvaria (figs. 105, 106, p. 70) ; and also by common Rhubarb, FIG.