On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 1
... rule , during the previous summer , in many cases as early as June or July , and in some even a year and a half in advance . The protection of the buds is therefore one of the most important requisites in plant lite - in cold countries ...
... rule , during the previous summer , in many cases as early as June or July , and in some even a year and a half in advance . The protection of the buds is therefore one of the most important requisites in plant lite - in cold countries ...
Pagina 7
... rule that the bases of the leaves enclose and well protect the bud . Though leaves and flowers come out with a sur- prising burst of vegetation in suitable spring weather , their development is slow and gradual . The summer buds , as I ...
... rule that the bases of the leaves enclose and well protect the bud . Though leaves and flowers come out with a sur- prising burst of vegetation in suitable spring weather , their development is slow and gradual . The summer buds , as I ...
Pagina 10
... rule only the lower ones grow , and the upper part of the stem dies back . The arrangement of the leaf in the bud influences , and sometimes determines , the form of the leaf . This consideration explains , I think , the curious fact ...
... rule only the lower ones grow , and the upper part of the stem dies back . The arrangement of the leaf in the bud influences , and sometimes determines , the form of the leaf . This consideration explains , I think , the curious fact ...
Pagina 17
... rule each leaf has a single bud in its axil ; but there are two other classes of buds about which I must say a few words . In some species not merely one , but several buds arise in the axil . They appear to have been In such cases as ...
... rule each leaf has a single bud in its axil ; but there are two other classes of buds about which I must say a few words . In some species not merely one , but several buds arise in the axil . They appear to have been In such cases as ...
Pagina 52
... rule , the outer covering consists of two stipules , the rest of the leaf not being developed ( fig . 83 ) . Sometimes , however , at the base a small projection may be seen ( fig . 84 ) , which is a 0000 83 84 FIGS . 83-86 . - TULIP ...
... rule , the outer covering consists of two stipules , the rest of the leaf not being developed ( fig . 83 ) . Sometimes , however , at the base a small projection may be seen ( fig . 84 ) , which is a 0000 83 84 FIGS . 83-86 . - TULIP ...
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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.