On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina xv
... Scales of Oak Bud . 137 236-246 Winter - bud of Whitebeam 141 247-260 Winter - bud of Elm 145 261 Winter - bud of Wych Elm . 148 262 Outer Scales of Bud of Wych Elm . 148 263-268 Winter - bud of Plane . 149 269 Bud of Spanish Chestnut ...
... Scales of Oak Bud . 137 236-246 Winter - bud of Whitebeam 141 247-260 Winter - bud of Elm 145 261 Winter - bud of Wych Elm . 148 262 Outer Scales of Bud of Wych Elm . 148 263-268 Winter - bud of Plane . 149 269 Bud of Spanish Chestnut ...
Pagina 26
... outer stipular scales of many buds are tough and leathery , the inner ones more membranous , and often very delicate , thin , and almost transparent . Others develop into hard , woody spines , as in Robinia ( so - called Acacia ) , & c ...
... outer stipular scales of many buds are tough and leathery , the inner ones more membranous , and often very delicate , thin , and almost transparent . Others develop into hard , woody spines , as in Robinia ( so - called Acacia ) , & c ...
Pagina 40
... outer leaves of the resting bud , which are reduced to bract - like fleshy scales . The leaves are convolute , the lower enclosing the upper ones . Again , in Kadsura ( K. japonica ) the winter - buds are protected by the outer leaves ...
... outer leaves of the resting bud , which are reduced to bract - like fleshy scales . The leaves are convolute , the lower enclosing the upper ones . Again , in Kadsura ( K. japonica ) the winter - buds are protected by the outer leaves ...
Pagina 49
... outer scales . two other lobes appear at the base of the first ( fig . 64 , s , s ) . These are the stipules . E than the leaf . By the time , however ,. They are at first much smaller. DEVELOPMENT OF LEAVES AND STIPULES 49.
... outer scales . two other lobes appear at the base of the first ( fig . 64 , s , s ) . These are the stipules . E than the leaf . By the time , however ,. They are at first much smaller. DEVELOPMENT OF LEAVES AND STIPULES 49.
Pagina 50
... outer scales do not , of course , correspond to stages in the development of a normal leaf . A rudimentary leaf , such as that in fig . 70 , is followed by a scale of quite a different form : broader , wrapping round the bud , and ...
... outer scales do not , of course , correspond to stages in the development of a normal leaf . A rudimentary leaf , such as that in fig . 70 , is followed by a scale of quite a different form : broader , wrapping round the bud , and ...
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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...