On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 1
... browsing quadrupeds by gummy or resinous secretions . The bud is a short shoot bearing a number of young leaves closely packed together . There is generally one B at the summit of each twig and in the axil CHAPTER I ON BUDS.
... browsing quadrupeds by gummy or resinous secretions . The bud is a short shoot bearing a number of young leaves closely packed together . There is generally one B at the summit of each twig and in the axil CHAPTER I ON BUDS.
Pagina 6
... line of junction of the two leaves - becomes brown with age while the thicker portion is still green . In other plants , as in Stachys ( fig . 6 ) , the leaves do not fit so closely , but the protection is. 6 BUDS AND STIPULES.
... line of junction of the two leaves - becomes brown with age while the thicker portion is still green . In other plants , as in Stachys ( fig . 6 ) , the leaves do not fit so closely , but the protection is. 6 BUDS AND STIPULES.
Pagina 7
Sir John Lubbock. do not fit so closely , but the protection is enhanced by numerous hairs . In the Plane ( fig . 7 ) the base of the leaf - stalk is hollowed out , forming a sort of cup or extinguisher , which completely covers the ...
Sir John Lubbock. do not fit so closely , but the protection is enhanced by numerous hairs . In the Plane ( fig . 7 ) the base of the leaf - stalk is hollowed out , forming a sort of cup or extinguisher , which completely covers the ...
Pagina 11
... closely agree . The seed of the Radish is shaped as in fig . 12. What regulates the shape m h-- : о 121 i.c o.c 13 14 FIGS . 12-14 . - RADISH ( Raphanus sativus ) . 12 , outline of seed , x 4 m , micropyle ; h , hilum ; 13 , embryo in ...
... closely agree . The seed of the Radish is shaped as in fig . 12. What regulates the shape m h-- : о 121 i.c o.c 13 14 FIGS . 12-14 . - RADISH ( Raphanus sativus ) . 12 , outline of seed , x 4 m , micropyle ; h , hilum ; 13 , embryo in ...
Pagina 14
... closely to see whether the peculiar forms could in any way be explained by the 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 ...
... closely to see whether the peculiar forms could in any way be explained by the 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 ...
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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...