On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina xiii
... scales of Rosa canina 53 54 55 95 Expanding Bud of Rosa canina . 56 96 Uppermost Bud - scale of Rosa canina 56 97 Basipetal Growth 58 98 Basifugal Growth . 58 99 Young Leaf of Centaurea Scabiosa , showing develop- ment 59 100 , 101 Leaf ...
... scales of Rosa canina 53 54 55 95 Expanding Bud of Rosa canina . 56 96 Uppermost Bud - scale of Rosa canina 56 97 Basipetal Growth 58 98 Basifugal Growth . 58 99 Young Leaf of Centaurea Scabiosa , showing develop- ment 59 100 , 101 Leaf ...
Pagina xiv
... scales of Lilac 173-177 Winter - bud of Salix Caprea . 137-139 Development of Glandular Hairs in Lilac ( after Hanstein ) 140 , 141 Development of Glandular Hairs in Plane ( after 142-148 Hanstein ) . Winter - buds of Alder . Bud of ...
... scales of Lilac 173-177 Winter - bud of Salix Caprea . 137-139 Development of Glandular Hairs in Lilac ( after Hanstein ) 140 , 141 Development of Glandular Hairs in Plane ( after 142-148 Hanstein ) . Winter - buds of Alder . Bud of ...
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 10
... scales . Thus , in the Ash , Maple , Horse Chestnut , and Oak , which have true terminal buds , there are comparatively few leaves ; while in the Elm there are about seven , Hornbeam eight , Lime eight , Willow fifteen , and Lilac ...
... scales . Thus , in the Ash , Maple , Horse Chestnut , and Oak , which have true terminal buds , there are comparatively few leaves ; while in the Elm there are about seven , Hornbeam eight , Lime eight , Willow fifteen , and Lilac ...
Pagina 26
... scales of buds are various shades of brown , shading off to white ; scarious stipules range from straw - colour to grey . Some are beautifully coloured , almost like the petals of flowers : in the Hornbeam , for instance , often of a ...
... scales of buds are various shades of brown , shading off to white ; scarious stipules range from straw - colour to grey . Some are beautifully coloured , almost like the petals of flowers : in the Hornbeam , for instance , often of a ...
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Termeni și expresii frecvente
apex axil axillary buds axis base Beech Bentham blade brown Bud Protection bud-scales Candolle completely covered concave conduplicate connate stipules cotyledons developed edges exstipulate fifth folded foliaceous genera genus glabrous glands growing-point growth Guaiacum officinale hairs hairy Helianthemum Hornbeam Horse Chestnut Hypericum calycinum Illustrations inner instance lamina Lantana lateral buds Lathyrus Lathyrus Aphaca Lathyrus Nissolia leaf leaf-base leaf-blade leaf-stalk leaflets length less lobes lower membranous midrib Monocotyledons narrow node ocrea Opulus outer scales ovate pair of leaves pair of stipules pedestal persistent petiole Petteria PLANE Platanus plant Polygonum protect the bud protect the young Robinia scale fig scar sheath showing side slightly sometimes species St FIG st st stalk stem stipular stipules belonging stipules fig stipules St subulate tendrils terminal bud triangular Tulip Tree upper Viburnum Viburnum Lantana Viburnum Opulus Whitebeam winter winter-bud Wych Elm young bud young leaves Young Shoot younger
Pasaje populare
Pagina 191 - The acacia, however, bears hollow thorns, while each leaflet produces honey in a craterformed gland at the base, and a small, sweet, pearshaped body at the tip. In consequence, it is inhabited by myriads of a small ant, which nests in the hollow thorns, and thus finds meat, drink, and lodging all provided for it. These ants are continually roaming over the plant, and constitute a most efficient body-guard, not only driving off the leaf-cutting ants, but, in Belt's opinion, rendering the leaves less...
Pagina 233 - ... the presence, the uses, and the forms of stipules, and the structure of buds in some of our common trees, shrubs, and herbs. If I shall have induced any of my readers to look at them for themselves in the coming spring they will, I am sure, be amply rewarded. They will often be reminded of Tennyson's profound remark about Nature : So careless of the single life, So careful of the type she seems...
Pagina 68 - Plants, p. 286. -purpwrea, which naturally sink at night (the plants growing out of doors), and looked at them early on several successive mornings, after they had assumed their diurnal positions. The difference in the amount of dew on the pinned-open leaflets and on those which had gone to sleep was generally conspicuous, the latter being sometimes absolutely dry. whilst the leaflets which had been horizontal were coated with large beads of dew. This shows how much cooler the leaflets fully exposed...