On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 2
... instance , in the Black Poplar ( Populus nigra ) . FIG . 1. - YOUNG SHOOT OF TULIP TREE ( Lirioden- dron ) , 1 nat . size . The following figure ( fig . 1 ) , representing a young shoot of a Tulip Tree , is an illustration of the ...
... instance , in the Black Poplar ( Populus nigra ) . FIG . 1. - YOUNG SHOOT OF TULIP TREE ( Lirioden- dron ) , 1 nat . size . The following figure ( fig . 1 ) , representing a young shoot of a Tulip Tree , is an illustration of the ...
Pagina 4
Sir John Lubbock. In the Begonias ( fig . 2 ) , for instance , as Mr. Potter has pointed out ( 1 ) , 1 the buds are shaded from the over- powering heat of the sun by the older leaves . Plants grown under artificial conditions do not show ...
Sir John Lubbock. In the Begonias ( fig . 2 ) , for instance , as Mr. Potter has pointed out ( 1 ) , 1 the buds are shaded from the over- powering heat of the sun by the older leaves . Plants grown under artificial conditions do not show ...
Pagina 11
... instances in illustration . I will take first the Common Radish ( Raphanus sativus ) , with which , as regards the cotyledons , the Cab- bage and Mustard closely agree . The seed of the Radish is shaped as in fig . 12. What regulates ...
... instances in illustration . I will take first the Common Radish ( Raphanus sativus ) , with which , as regards the cotyledons , the Cab- bage and Mustard closely agree . The seed of the Radish is shaped as in fig . 12. What regulates ...
Pagina 23
... instance , of the Common Garden Pea A B FIG . 26. STIPULES OF PEA BEFORE THE UNFOLDING OF THE LEAF . A , natural position ; B , one stipule turned back , showing the rest of the leaf . ( Pisum sativum ) ( fig . 26 ) are large , oblong ...
... instance , of the Common Garden Pea A B FIG . 26. STIPULES OF PEA BEFORE THE UNFOLDING OF THE LEAF . A , natural position ; B , one stipule turned back , showing the rest of the leaf . ( Pisum sativum ) ( fig . 26 ) are large , oblong ...
Pagina 24
... are even more minute , as in the Holly ( Ilex Aquifolium ) ( fig . 29 ) . Here they are perhaps functionless ; the mere rudiments of once larger organs . In other cases , however , as for instance in 24 BUDS AND STIPULES.
... are even more minute , as in the Holly ( Ilex Aquifolium ) ( fig . 29 ) . Here they are perhaps functionless ; the mere rudiments of once larger organs . In other cases , however , as for instance in 24 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...