On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina viii
... Growing - point : Aucuba , Common Laurel , Tulip Tree , Rose - Basipetal and Basifugal de- velopment : Centaurea , Galium - Ocrea : The Plane , Poly- gonum - Vernation : Conduplicate , Plicate , Circinnate , Re- volute , Involute ...
... Growing - point : Aucuba , Common Laurel , Tulip Tree , Rose - Basipetal and Basifugal de- velopment : Centaurea , Galium - Ocrea : The Plane , Poly- gonum - Vernation : Conduplicate , Plicate , Circinnate , Re- volute , Involute ...
Pagina xiii
... Growing - point of Rose 59-63 Leaf Development in Aucuba japonica . 64-79 Leaf Development in Common Laurel 80-82 Leaf Development in Tulip Tree . 83-86 Axillary Buds of Tulip Tree Growing - point of Rose Section across Bud of Rose 89 ...
... Growing - point of Rose 59-63 Leaf Development in Aucuba japonica . 64-79 Leaf Development in Common Laurel 80-82 Leaf Development in Tulip Tree . 83-86 Axillary Buds of Tulip Tree Growing - point of Rose Section across Bud of Rose 89 ...
Pagina 2
... growing ' and ' resting ' buds . Moreover , among our own species there is often a considerable difference be- tween terminal and axillary buds , as , for instance , in the Black Poplar ( Populus nigra ) . FIG . 1. - YOUNG SHOOT OF ...
... growing ' and ' resting ' buds . Moreover , among our own species there is often a considerable difference be- tween terminal and axillary buds , as , for instance , in the Black Poplar ( Populus nigra ) . FIG . 1. - YOUNG SHOOT OF ...
Pagina 3
... growing or natives of tropical countries , the buds are comparatively naked and unprotected . Even in the tropics , however , though protection is not needed against cold , it is required against the burning sun- light and against ...
... growing or natives of tropical countries , the buds are comparatively naked and unprotected . Even in the tropics , however , though protection is not needed against cold , it is required against the burning sun- light and against ...
Pagina 4
... grown under artificial conditions do not show the arrange- FIG . 3 . FIG . 4 . B YOUNG LEAVES OF HYPERICUM CALYCINUM . Nat . size . FIG . 3 , seen from the side . FIG . 4 , with one leaf turned back to show the younger , enclosed pair ...
... grown under artificial conditions do not show the arrange- FIG . 3 . FIG . 4 . B YOUNG LEAVES OF HYPERICUM CALYCINUM . Nat . size . FIG . 3 , seen from the side . FIG . 4 , with one leaf turned back to show the younger , enclosed pair ...
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Termeni și expresii frecvente
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.