On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 40
... consist of flattened petioles , with a membranous margin representing stipules , free only at the tip . The true leaves follow the scales abruptly . Another very interesting case is that of Viburnum.1 We have in this country two wild ...
... consist of flattened petioles , with a membranous margin representing stipules , free only at the tip . The true leaves follow the scales abruptly . Another very interesting case is that of Viburnum.1 We have in this country two wild ...
Pagina 84
... consist of stipules adnate to the base of the petiole . In Petteria ramentacea ( figs . 129 , 130 ) the stipules are at first small and obtuse . They have a covering of hair , and are axillary and slightly connate . The leaves are ...
... consist of stipules adnate to the base of the petiole . In Petteria ramentacea ( figs . 129 , 130 ) the stipules are at first small and obtuse . They have a covering of hair , and are axillary and slightly connate . The leaves are ...
Pagina 112
... consist of two leaves united ; its thickened edges and the strong , slightly branched nerve , easily seen on the inner face of these thickened edges , tend to support this view ; but no suture is discernible on the ante- rior face ...
... consist of two leaves united ; its thickened edges and the strong , slightly branched nerve , easily seen on the inner face of these thickened edges , tend to support this view ; but no suture is discernible on the ante- rior face ...
Pagina 139
... consist of a few pairs of stipules , the outer ones of which are comparatively large . These buds appear but seldom or ever to become developed into branches on the expansion of the primary bud , but remain small . Accidents to the ...
... consist of a few pairs of stipules , the outer ones of which are comparatively large . These buds appear but seldom or ever to become developed into branches on the expansion of the primary bud , but remain small . Accidents to the ...
Pagina 140
... consist of a leaf - blade connate with two stipules . The series given above in figs . 215-235 seems to me con- clusive against this view . WHITEBEAM ( Pyrus Aria ) The scales of the winter - bud ( fig . 236 ) of the Whitebeam ( Pyrus ...
... consist of a leaf - blade connate with two stipules . The series given above in figs . 215-235 seems to me con- clusive against this view . WHITEBEAM ( Pyrus Aria ) The scales of the winter - bud ( fig . 236 ) of the Whitebeam ( Pyrus ...
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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...