On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina vii
... Position of Stipules - Differences in allied Species : Elder- Differences in same Species : Hawthorn - Use of Stipules : Robinia , Petteria , Poplar , Magnolia , Astragalus , Hedysarum , Pondweed , Knotweed , Hop , Spergularia ...
... Position of Stipules - Differences in allied Species : Elder- Differences in same Species : Hawthorn - Use of Stipules : Robinia , Petteria , Poplar , Magnolia , Astragalus , Hedysarum , Pondweed , Knotweed , Hop , Spergularia ...
Pagina viii
... Position as- sumed by Buds - Diminution of Radiation - Darwin's Sug- gestion - Protection by Leaf - base , by Modified Leaves , by Leaf - stalk , by Stipules , by Connate Stipules , by Spines , by Hair , by Gum or Resin - Protection by ...
... Position as- sumed by Buds - Diminution of Radiation - Darwin's Sug- gestion - Protection by Leaf - base , by Modified Leaves , by Leaf - stalk , by Stipules , by Connate Stipules , by Spines , by Hair , by Gum or Resin - Protection by ...
Pagina 14
... position of the leaves on the tree . I believe , however , that the cause is of a different nature , and has reference to the peculiar character of the bud . a FIG . 17. - DIAGRAM SHOW- ING ARRANGEMENT OF THE YOUNG LEAF OF LIRIODENDRON ...
... position of the leaves on the tree . I believe , however , that the cause is of a different nature , and has reference to the peculiar character of the bud . a FIG . 17. - DIAGRAM SHOW- ING ARRANGEMENT OF THE YOUNG LEAF OF LIRIODENDRON ...
Pagina 23
... position ; B , one stipule turned back , showing the rest of the leaf . ( Pisum sativum ) ( fig . 26 ) are large , oblong - oval , mucronate , unequal - sided , and unequally toothed at one side . They cover the rest of their own leaf ...
... position ; B , one stipule turned back , showing the rest of the leaf . ( Pisum sativum ) ( fig . 26 ) are large , oblong - oval , mucronate , unequal - sided , and unequally toothed at one side . They cover the rest of their own leaf ...
Pagina 64
... positions . The conduplicate arrangement seems to follow natu- rally from the mode of development described on p . 47 . The rudiment of the leaf , spreading more or less round the growing - point , assumes a hollow form , and when it ...
... positions . The conduplicate arrangement seems to follow natu- rally from the mode of development described on p . 47 . The rudiment of the leaf , spreading more or less round the growing - point , assumes a hollow form , and when it ...
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Termeni și expresii frecvente
apex axil axillary buds axis base become Beech blade brown bud fig bud is protected bud-scales catkin ciliate completely covered concave conduplicate connate stipules cotyledons developed edges Edition fifth folded fourth genera glabrous glands glandular growing-point growth Guaiacum officinale hairs hairy Helianthemum Hornbeam Horse Chestnut inserted instance lamina lateral buds Lathyrus Lathyrus Aphaca Lathyrus Nissolia leaf leaf-base leaf-blade leaf-stalk leaflets leaves and stipules Leguminosa length less lobes lower membranous midrib Monocotyledons narrower nerves node oblong ocrea Opulus outer scales ovate pair of leaves pair of stipules pairs of scales pedestal persistent petiole PLANE Platanus plant Polygonum portion protect the bud protect the young scale fig scar sheath showing side silky sixth slightly smaller sometimes species spines stem stipular stipules belonging stipules fig subulate tendrils terminal bud trees triangular unequal upper Viburnum Viburnum Lantana Viburnum Opulus Whitebeam winter winter-bud Wych Elm young leaves
Pasaje populare
Pagina 233 - Prontenex, the owner stated that for years they followed the same order of succession at both epochs : those which were first to leaf were also the earliest to lose their leaves. A Chestnut in the gardens of the Tuileries from its habit of early leafing is known as the Vingt Mars ; and M. Henri Vilmorin states that, compared with the other Chestnuts in the gardens, it keeps its leaves beyond the mean time of leaf-fall. M. Vilmorin also observed thirty-four Horse Chestnuts, 150 years old, in a plantation...