On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 110
Sir John Lubbock . ( fig . 168 ) are longer than broad ; the fourth ( fig . 169 ) still longer , and rather narrowed at the base ; the fifth ( fig . 170 ) begin to assume the form of the leaf , and have a distinct , though very short ...
Sir John Lubbock . ( fig . 168 ) are longer than broad ; the fourth ( fig . 169 ) still longer , and rather narrowed at the base ; the fifth ( fig . 170 ) begin to assume the form of the leaf , and have a distinct , though very short ...
Pagina 125
... longer than the third . Their leaf - blade is subulate , and about one - third as long as their stipules . Sometimes it dies in winter . The fifth pair are sometimes nearly as long as the bud . The third leaf - blade belongs to them ...
... longer than the third . Their leaf - blade is subulate , and about one - third as long as their stipules . Sometimes it dies in winter . The fifth pair are sometimes nearly as long as the bud . The third leaf - blade belongs to them ...
Pagina 126
... longer , and narrower in proportion . Several of the species secrete a gum , which forms an additional protection to the bud . THE LIME ( Tilia ) In the Lime ( Tilia vulgaris ) ( Pl . I. fig . 1 ) the pseudo - terminal and lateral buds ...
... longer , and narrower in proportion . Several of the species secrete a gum , which forms an additional protection to the bud . THE LIME ( Tilia ) In the Lime ( Tilia vulgaris ) ( Pl . I. fig . 1 ) the pseudo - terminal and lateral buds ...
Pagina 129
... longer and over- lapped at the base by its fellow at both edges . They cover a considerable portion of the bud , owing to their width . The third pair are as long as the bud , covering the whole of the younger members and over- lapping ...
... longer and over- lapped at the base by its fellow at both edges . They cover a considerable portion of the bud , owing to their width . The third pair are as long as the bud , covering the whole of the younger members and over- lapping ...
Pagina 132
... narrower , and unequal , the inner one being the smaller . The leaf is three - fourths as long as its stip- ules . The leaf ( fig . 208 ) belonging to the fifteenth pair is longer and more bulky than the stipule . 132 BUDS AND STIPULES.
... narrower , and unequal , the inner one being the smaller . The leaf is three - fourths as long as its stip- ules . The leaf ( fig . 208 ) belonging to the fifteenth pair is longer and more bulky than the stipule . 132 BUDS AND STIPULES.
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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
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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...