On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 1
... enclosed in several warm wraps , covered in many cases by furry hairs , and often still further protected from insects and browsing quadrupeds by gummy or resinous secretions . The bud is a short shoot bearing a number of young leaves ...
... enclosed in several warm wraps , covered in many cases by furry hairs , and often still further protected from insects and browsing quadrupeds by gummy or resinous secretions . The bud is a short shoot bearing a number of young leaves ...
Pagina 4
... enclosed pair ( B ) . ment well , as the leaves are often drawn to one side or the other by the light . But Mr. Potter , who has had the opportunity of examining many species in a wild state , found that they were always more or less ...
... enclosed pair ( B ) . ment well , as the leaves are often drawn to one side or the other by the light . But Mr. Potter , who has had the opportunity of examining many species in a wild state , found that they were always more or less ...
Pagina 6
... enclosed ; they in their turn surround the third , and so on . Mesembryanthemum blandum has the leaves oppo- site , triquetrous , 3-5 cm . long , rounded on the dorsal edge , very shallowly grooved on the upper surface , FIG . 7. - LEAF ...
... enclosed ; they in their turn surround the third , and so on . Mesembryanthemum blandum has the leaves oppo- site , triquetrous , 3-5 cm . long , rounded on the dorsal edge , very shallowly grooved on the upper surface , FIG . 7. - LEAF ...
Pagina 7
... 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 have already mentioned , contain ...
... 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 have already mentioned , contain ...
Pagina 14
... enclosed in and sheltered by the stipules of its predeces- These are in Liriodendron oval , or in form resembling a shallow dish or spoon , so that when placed face to face they form a hollow almond - shaped box . Inside this lies the ...
... enclosed in and sheltered by the stipules of its predeces- These are in Liriodendron oval , or in form resembling a shallow dish or spoon , so that when placed face to face they form a hollow almond - shaped box . Inside this lies the ...
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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.