On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 6
... upper surface , FIG . 7. - LEAF OF PLANE ( Platanus ) , showing mode of protection of the young bud . more decidedly so at the base , and connate there , form- ing a sheath 3-5 cm . long , which remains green after the stem it encloses ...
... upper surface , FIG . 7. - LEAF OF PLANE ( Platanus ) , showing mode of protection of the young bud . more decidedly so at the base , and connate there , form- ing a sheath 3-5 cm . long , which remains green after the stem it encloses ...
Pagina 8
... upper of which replaces the terminal bud on the fall of the latter . so that if we open a bud in the autumn we may find the rudiments not only of next year's leaves , but even of those of the spring following . There is a remarkable ...
... upper of which replaces the terminal bud on the fall of the latter . so that if we open a bud in the autumn we may find the rudiments not only of next year's leaves , but even of those of the spring following . There is a remarkable ...
Pagina 9
... upper part having been cut off ; b , bud ; t , terminal shoot , the upper part has already dropped off ; s , scar of stipule . The same thing occurs in the Elm , Birch , Hazel - Nut , Lilac , Willow , & c . In these and many other ...
... upper part having been cut off ; b , bud ; t , terminal shoot , the upper part has already dropped off ; s , scar of stipule . The same thing occurs in the Elm , Birch , Hazel - Nut , Lilac , Willow , & c . In these and many other ...
Pagina 10
... upper part of the stem dies back . The arrangement of the leaf in the bud influences , and sometimes determines , the form of the leaf . This consideration explains , I think , the curious fact that the first leaves , or cotyledons ...
... upper part of the stem dies back . The arrangement of the leaf in the bud influences , and sometimes determines , the form of the leaf . This consideration explains , I think , the curious fact that the first leaves , or cotyledons ...
Pagina 28
... upper leaf often survive the leaf- blade , which drops off in autumn , while they retain their place and protect the young bud through the winter . When stipules survive the rest of the leaf to which 28 BUDS AND STIPULES.
... upper leaf often survive the leaf- blade , which drops off in autumn , while they retain their place and protect the young bud through the winter . When stipules survive the rest of the leaf to which 28 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...