On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina vii
... Plane- Development of Leaves and Flowers taking sometimes a whole Year , or even two - Frequent death of Terminal Shoot : Lime , Hornbeam , Elm , Birch , Willow , & c . - Shape of Leaves and Cotyledons - Reasons for the differences ...
... Plane- Development of Leaves and Flowers taking sometimes a whole Year , or even two - Frequent death of Terminal Shoot : Lime , Hornbeam , Elm , Birch , Willow , & c . - Shape of Leaves and Cotyledons - Reasons for the differences ...
Pagina viii
... Plane , Poly- gonum - Vernation : Conduplicate , Plicate , Circinnate , Re- volute , Involute , Equitant , Convolute -- Leaves of Water Plants Fleshy Leaves : Mistletoe , Saxifrage , Aloe- Monocotyledons - Palms - Aroids PAGE 46 CHAPTER ...
... Plane , Poly- gonum - Vernation : Conduplicate , Plicate , Circinnate , Re- volute , Involute , Equitant , Convolute -- Leaves of Water Plants Fleshy Leaves : Mistletoe , Saxifrage , Aloe- Monocotyledons - Palms - Aroids PAGE 46 CHAPTER ...
Pagina ix
... Plane , Spanish Chestnut , Hop- Bud of Conifers - Scotch Fir - Picea - Cycas - Zamia . CHAPTER VI ON THE FORMS OF STIPULES Great Variety of Forms - Difference of Texture - Species with different Forms of Stipules : Hawthorn , Ribes ...
... Plane , Spanish Chestnut , Hop- Bud of Conifers - Scotch Fir - Picea - Cycas - Zamia . CHAPTER VI ON THE FORMS OF STIPULES Great Variety of Forms - Difference of Texture - Species with different Forms of Stipules : Hawthorn , Ribes ...
Pagina x
... Plane , Polygonum - Tendrils - Monocotyledons - Stipellæ -Stipules rare in Cotyledons - Composition of Leaf . CHAPTER IX SUMMARY 197 The Bud - Modes of Protection - Stipules : Nature of , Uses of— Fall of the Leaf : Not a case of Death ...
... Plane , Polygonum - Tendrils - Monocotyledons - Stipellæ -Stipules rare in Cotyledons - Composition of Leaf . CHAPTER IX SUMMARY 197 The Bud - Modes of Protection - Stipules : Nature of , Uses of— Fall of the Leaf : Not a case of Death ...
Pagina xii
... Plane , showing mode of protection of Young Bud ( after Gray ) 8,9 Unopened Buds of Norway Maple 10 Young Shoot of Lime 11 Young Shoot of Hornbeam 12-14 Seed , Embryo and Seedling of Radish 15 Seedling of Wallflower 16 Sections of Seed ...
... Plane , showing mode of protection of Young Bud ( after Gray ) 8,9 Unopened Buds of Norway Maple 10 Young Shoot of Lime 11 Young Shoot of Hornbeam 12-14 Seed , Embryo and Seedling of Radish 15 Seedling of Wallflower 16 Sections of Seed ...
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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.