On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina xiii
... Axillary 233 Buds . 38 51-54 Leaves of Exochorda 39 55 Viburnum Lantana ( after Bentham ) 41 56 Viburnum Opulus ( after Bentham ) 41 57 Bud of Viburnum Opulus 44 58 87 88 Growing - point of Rose 59-63 Leaf Development in Aucuba japonica ...
... Axillary 233 Buds . 38 51-54 Leaves of Exochorda 39 55 Viburnum Lantana ( after Bentham ) 41 56 Viburnum Opulus ( after Bentham ) 41 57 Bud of Viburnum Opulus 44 58 87 88 Growing - point of Rose 59-63 Leaf Development in Aucuba japonica ...
Pagina 2
... 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 TULIP TREE ( Lirioden- dron ) ...
... 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 TULIP TREE ( Lirioden- dron ) ...
Pagina 5
... axillary buds arise exactly at this place ; a , axis ; yl , next younger pair of leaves . where the delicate new leaves in the centre of the plant are protected by the large , horizontally spreading , older ones . Figs . 3 and 4 show ...
... axillary buds arise exactly at this place ; a , axis ; yl , next younger pair of leaves . where the delicate new leaves in the centre of the plant are protected by the large , horizontally spreading , older ones . Figs . 3 and 4 show ...
Pagina 8
... terminal bud ; B , axillary buds , the upper of which replaces the terminal bud on the fall of the latter . so that if we open a bud in the autumn we may find the rudiments not only of next year's leaves , but even of those of the ...
... terminal bud ; B , axillary buds , the upper of which replaces the terminal bud on the fall of the latter . so that if we open a bud in the autumn we may find the rudiments not only of next year's leaves , but even of those of the ...
Pagina 9
... bud situated apparently at the end of the branchlets is in reality axillary , as is 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 ...
... bud situated apparently at the end of the branchlets is in reality axillary , as is 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 ...
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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.