On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 10
... narrow , entire or much divided . Now , why should the first leaves differ so much from their successors ? The reason , I believe , is that while the forms of leaves often depend greatly on the 1 Philosophia Botanica . buds , those of ...
... narrow , entire or much divided . Now , why should the first leaves differ so much from their successors ? The reason , I believe , is that while the forms of leaves often depend greatly on the 1 Philosophia Botanica . buds , those of ...
Pagina 36
... narrow at the base , but they are provided with stipules . The reason for the presence or absence of stipules seems , then , quite obvious , so far as the Rock Roses ( Helianthemum ) are concerned . Let us now see whether the ...
... narrow at the base , but they are provided with stipules . The reason for the presence or absence of stipules seems , then , quite obvious , so far as the Rock Roses ( Helianthemum ) are concerned . Let us now see whether the ...
Pagina 37
... narrow petioles , while in the other genera- Dianthus , Tunica , Gypsophila , Saponaria , Silene , Lychnis , Cerastium , Arenaria , Sagina , & c . - containing a very large number of species , the basal part of the leaves is always more ...
... narrow petioles , while in the other genera- Dianthus , Tunica , Gypsophila , Saponaria , Silene , Lychnis , Cerastium , Arenaria , Sagina , & c . - containing a very large number of species , the basal part of the leaves is always more ...
Pagina 51
... narrow , delicate , hyaline membrane . The bud then assumes the appearance shown in fig . 80 . The next stage ( fig . 81 ) shows the growth of the leaf - blade , which is more developed in fig . 82. Fig . 17 , p . 14 , shows how closely ...
... narrow , delicate , hyaline membrane . The bud then assumes the appearance shown in fig . 80 . The next stage ( fig . 81 ) shows the growth of the leaf - blade , which is more developed in fig . 82. Fig . 17 , p . 14 , shows how closely ...
Pagina 56
... are represented by small or narrow teeth , crowded together . The stipules are now well developed , and much larger in proportion to the rest of the organ than in previous cases . The second leaf , occurring at 56 BUDS AND STIPULES.
... are represented by small or narrow teeth , crowded together . The stipules are now well developed , and much larger in proportion to the rest of the organ than in previous cases . The second leaf , occurring at 56 BUDS AND STIPULES.
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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...