On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 1
... covered in many cases by furry hairs , and often still further protected from insects and browsing quadrupeds by gummy or resinous secretions . The bud is a short shoot bearing a number of young leaves closely packed together . There is ...
... covered in many cases by furry hairs , and often still further protected from insects and browsing quadrupeds by gummy or resinous secretions . The bud is a short shoot bearing a number of young leaves closely packed together . There is ...
Pagina 2
... covering , has been killed by frost , while the suc- ceeding one , which had two wraps , has escaped . It is remarkable that some nearly allied genera , and even in certain cases species of the same genus , often differ in the method of ...
... covering , has been killed by frost , while the suc- ceeding one , which had two wraps , has escaped . It is remarkable that some nearly allied genera , and even in certain cases species of the same genus , often differ in the method of ...
Pagina 17
... covered over by the bark . Such buds are known as dormant . ' They may remain in the same state for years , but if the growing shoots are injured in the struggle for existence these reserves are called into the field . Their presence is ...
... covered over by the bark . Such buds are known as dormant . ' They may remain in the same state for years , but if the growing shoots are injured in the struggle for existence these reserves are called into the field . Their presence is ...
Pagina 18
... covered with a thick growth of young shoots , springing up rapidly , at the expense of the nourish- ment stored up in the roots which remain in the ground . Such shoots are also common in Poplars , Limes , many fruit trees , & c ...
... covered with a thick growth of young shoots , springing up rapidly , at the expense of the nourish- ment stored up in the roots which remain in the ground . Such shoots are also common in Poplars , Limes , many fruit trees , & c ...
Pagina 25
... covering the terminal bud . B. Terminal shoot with lamina of leaves removed , x2 ; st ' , st " , stipules as in A ; b , lateral bud . Stipules are sometimes situated on the leaf - base , sometimes at the foot of the leaf - base ...
... covering the terminal bud . B. Terminal shoot with lamina of leaves removed , x2 ; st ' , st " , stipules as in A ; b , lateral bud . Stipules are sometimes situated on the leaf - base , sometimes at the foot of the leaf - base ...
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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...