On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 27
... serve to protect the young leaves , drop off as soon as the St St st St FIG . 32. - FIVE LEAVES OF THE COMMON THORN . Nat . size . St , stipules , absent in the first figure . latter expand . The ground under Beeches in spring is almost ...
... serve to protect the young leaves , drop off as soon as the St St st St FIG . 32. - FIVE LEAVES OF THE COMMON THORN . Nat . size . St , stipules , absent in the first figure . latter expand . The ground under Beeches in spring is almost ...
Pagina 42
... serve as a bodyguard . Indeed , it has appeared to me that on specimens of V. Opulus , which are much frequented by wasps and ants , the leaves are less eaten than in other cases where they are not so protected . I now come to the ...
... serve as a bodyguard . Indeed , it has appeared to me that on specimens of V. Opulus , which are much frequented by wasps and ants , the leaves are less eaten than in other cases where they are not so protected . I now come to the ...
Pagina 66
... served its purpose . In other cases the outer envelopes of the bud are specially modified for the purpose . As Grew ( 12 ) quaintly says : According to the Form and Foulding of every Leaf or Germen , is its Protection order'd ; about ...
... served its purpose . In other cases the outer envelopes of the bud are specially modified for the purpose . As Grew ( 12 ) quaintly says : According to the Form and Foulding of every Leaf or Germen , is its Protection order'd ; about ...
Pagina 80
... serve as a very effective non - conductor of heat . If the brown cap is removed the green bud will be found snugly ensconced under it . The bud in the Robinia , like that of Philadelphus , is completely covered by the base of the ...
... serve as a very effective non - conductor of heat . If the brown cap is removed the green bud will be found snugly ensconced under it . The bud in the Robinia , like that of Philadelphus , is completely covered by the base of the ...
Pagina 84
... serve not only to protect the younger leaves , but even the blade of the leaf to which they belong , as , for instance , in the Common Pea ( fig . 26 , p . 23 ) , Lathyrus maritimus ( fig . 296 , p . 175 ) , & c . , Virgi- nian Creeper ...
... serve not only to protect the younger leaves , but even the blade of the leaf to which they belong , as , for instance , in the Common Pea ( fig . 26 , p . 23 ) , Lathyrus maritimus ( fig . 296 , p . 175 ) , & c . , Virgi- nian Creeper ...
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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...