On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 2
... considerable difference be- tween terminal and axillary buds , as , for instance , in the Black Poplar ( Populus nigra ) . FIG . 1. - YOUNG SHOOT OF TULIP TREE ( Lirioden- dron ) , 1 nat . size . The following figure ( fig . 1 ) ...
... considerable difference be- tween terminal and axillary buds , as , for instance , in the Black Poplar ( Populus nigra ) . FIG . 1. - YOUNG SHOOT OF TULIP TREE ( Lirioden- dron ) , 1 nat . size . The following figure ( fig . 1 ) ...
Pagina 17
... two classes - natural and accidental . Natural adventive buds are formed by Cardamine pratensis , Dentaria bulbifera , Bryophyllum calycinum , C a considerable number of Dicotyledonous and Mono- cotyledonous plants , ON BUDS 17.
... two classes - natural and accidental . Natural adventive buds are formed by Cardamine pratensis , Dentaria bulbifera , Bryophyllum calycinum , C a considerable number of Dicotyledonous and Mono- cotyledonous plants , ON BUDS 17.
Pagina 18
... considerable distance at which they appear from the parent emphasises the great length of the roots . Similarly , when a tree is cut down the ground becomes covered with a thick growth of young shoots , springing up rapidly , at the ...
... considerable distance at which they appear from the parent emphasises the great length of the roots . Similarly , when a tree is cut down the ground becomes covered with a thick growth of young shoots , springing up rapidly , at the ...
Pagina 21
... considerable interest , and might be asked with reference to several other groups besides the genus Helianthemum . The results of my observations have been embodied in several Memoirs which the Linnean Society has done me the honour to ...
... considerable interest , and might be asked with reference to several other groups besides the genus Helianthemum . The results of my observations have been embodied in several Memoirs which the Linnean Society has done me the honour to ...
Pagina 64
... considerable differences be- tween nearly allied species ; and in some cases the outer and inner leaves of the bud assume different positions . The conduplicate arrangement seems to follow natu- rally from the mode of development ...
... considerable differences be- tween nearly allied species ; and in some cases the outer and inner leaves of the bud assume different positions . The conduplicate arrangement seems to follow natu- rally from the mode of development ...
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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...