On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina xi
... expanded . 4 Carpinus Betulus : Young Shoot . 5 The same , to show the folding of the Leaves . 1 PLATE II At end of book Viburnum Opulus : Sprig with four opening Buds . 2 Acer platanoides : Young Shoot . 3 The same , more advanced . 4 ...
... expanded . 4 Carpinus Betulus : Young Shoot . 5 The same , to show the folding of the Leaves . 1 PLATE II At end of book Viburnum Opulus : Sprig with four opening Buds . 2 Acer platanoides : Young Shoot . 3 The same , more advanced . 4 ...
Pagina xiii
... Expanding Bud of Rosa canina . 56 96 Uppermost Bud - scale of Rosa canina 56 97 Basipetal Growth 58 98 Basifugal Growth . 58 99 Young Leaf of Centaurea Scabiosa , showing develop- ment 59 100 , 101 Leaf Development in Galium Mollugo ...
... Expanding Bud of Rosa canina . 56 96 Uppermost Bud - scale of Rosa canina 56 97 Basipetal Growth 58 98 Basifugal Growth . 58 99 Young Leaf of Centaurea Scabiosa , showing develop- ment 59 100 , 101 Leaf Development in Galium Mollugo ...
Pagina 31
... expanded leaf , with the lowest pair of leaflets still folded , and the sti- pules , st ' , connate opposite the leaf - base ; L " , next younger leaf pushing out of the bud with its stipules , st " . FIG . 42. The same showing the ...
... expanded leaf , with the lowest pair of leaflets still folded , and the sti- pules , st ' , connate opposite the leaf - base ; L " , next younger leaf pushing out of the bud with its stipules , st " . FIG . 42. The same showing the ...
Pagina 56
... expanding lateral bud , x2 ; one scale has fallen , revealing its axillary bud ( b ) ; five scales are shown , and two of the first leaves . Sketched March 24 . FIG . 96. - Uppermost scale , immediately preceding the first true leaf ...
... expanding lateral bud , x2 ; one scale has fallen , revealing its axillary bud ( b ) ; five scales are shown , and two of the first leaves . Sketched March 24 . FIG . 96. - Uppermost scale , immediately preceding the first true leaf ...
Pagina 57
... expanded , is given in fig . 95 . In the Rose , as we have seen , the development of the leaflets proceeds from above downwards , the upper leaflets being the older . This mode of growth , there- fore , has been termed ' basipetal ...
... expanded , is given in fig . 95 . In the Rose , as we have seen , the development of the leaflets proceeds from above downwards , the upper leaflets being the older . This mode of growth , there- fore , has been termed ' basipetal ...
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Termeni și expresii frecvente
apex axil axillary buds axis base Beech Bentham blade brown Bud Protection bud-scales Candolle completely covered concave conduplicate connate stipules cotyledons developed edges exstipulate fifth folded foliaceous genera genus glabrous glands growing-point growth Guaiacum officinale hairs hairy Helianthemum Hornbeam Horse Chestnut Hypericum calycinum Illustrations inner instance lamina Lantana lateral buds Lathyrus 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 showing side slightly sometimes species St FIG st st stalk stem stipular stipules belonging stipules fig stipules St subulate tendrils terminal bud triangular Tulip Tree upper Viburnum Viburnum Lantana Viburnum Opulus Whitebeam winter winter-bud Wych Elm young bud young leaves Young Shoot younger
Pasaje populare
Pagina 191 - The acacia, however, bears hollow thorns, while each leaflet produces honey in a craterformed gland at the base, and a small, sweet, pearshaped body at the tip. In consequence, it is inhabited by myriads of a small ant, which nests in the hollow thorns, and thus finds meat, drink, and lodging all provided for it. These ants are continually roaming over the plant, and constitute a most efficient body-guard, not only driving off the leaf-cutting ants, but, in Belt's opinion, rendering the leaves less...
Pagina 233 - ... the presence, the uses, and the forms of stipules, and the structure of buds in some of our common trees, shrubs, and herbs. If I shall have induced any of my readers to look at them for themselves in the coming spring they will, I am sure, be amply rewarded. They will often be reminded of Tennyson's profound remark about Nature : So careless of the single life, So careful of the type she seems...
Pagina 68 - Plants, p. 286. -purpwrea, which naturally sink at night (the plants growing out of doors), and looked at them early on several successive mornings, after they had assumed their diurnal positions. The difference in the amount of dew on the pinned-open leaflets and on those which had gone to sleep was generally conspicuous, the latter being sometimes absolutely dry. whilst the leaflets which had been horizontal were coated with large beads of dew. This shows how much cooler the leaflets fully exposed...