On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 9
... true terminal bud , which has dropped away , so that the one which is apparently terminal is really axil- lary . Fig . 11 represents the end of a shoot of Hornbeam ( Carpinus Betulus ) , taken in July , and shows how snugly the bud ...
... true terminal bud , which has dropped away , so that the one which is apparently terminal is really axil- lary . Fig . 11 represents the end of a shoot of Hornbeam ( Carpinus Betulus ) , taken in July , and shows how snugly the bud ...
Pagina 10
... true leaves . They offer an immense variety of form ; not quite so innumerable , indeed , as those of true leaves , of which Linnæus truly observed that ' Natura in nullâ parte magis fuit polymorpha quam in foliis , ' but still immense ...
... true leaves . They offer an immense variety of form ; not quite so innumerable , indeed , as those of true leaves , of which Linnæus truly observed that ' Natura in nullâ parte magis fuit polymorpha quam in foliis , ' but still immense ...
Pagina 40
... true leaves follow the scales abruptly . Another very interesting case is that of Viburnum.1 We have in this country two wild species of this genus - one , Viburnum Lantana ( usually known as the Wayfaring Tree ) ( fig . 55 ) ; the ...
... true leaves follow the scales abruptly . Another very interesting case is that of Viburnum.1 We have in this country two wild species of this genus - one , Viburnum Lantana ( usually known as the Wayfaring Tree ) ( fig . 55 ) ; the ...
Pagina 44
... true leaves should be folded , because they thus occupy less space . This , perhaps , accounts for the folding of the L حكة leaves of V. Opulus in the bud , while the lobes follow from the mode in which the leaves are folded . Now a ...
... true leaves should be folded , because they thus occupy less space . This , perhaps , accounts for the folding of the L حكة leaves of V. Opulus in the bud , while the lobes follow from the mode in which the leaves are folded . Now a ...
Pagina 54
... true petiole is the leaf - stalk above the stipules . The winged part below is really a develop- ment of the leaf - base . Adnate stipules , as these are called , arising from a similar development of the leaf - base , occur in many Sc4 ...
... true petiole is the leaf - stalk above the stipules . The winged part below is really a develop- ment of the leaf - base . Adnate stipules , as these are called , arising from a similar development of the leaf - base , occur in many Sc4 ...
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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...