On Buds and Stipules |
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Termeni și expresii frecvente
already apex appear arrangement axillary buds axis base become Beech belonging blade branches brown Chestnut closely common completely connate considerable consist corresponding covered developed early edges Edition enclosed entire expanded face fall fifth figure folded four fourth function genera gradually growing growth hairs half Illustrations inner instance interesting larger lateral Lathyrus leaf leaf-blade leaf-stalk leaflets leaves length less lobes longer lower membranous narrow naturally node occur opposite organs outer outer scales pair of stipules pedestal persistent petiole Plane plant portion position present protect protect the bud regarded remain represent rest Rose round rule scales seems seen separate serve sheath shoot short showing shown side similar sixth slightly smaller sometimes species spring stage stem subulate tendrils terminal bud third trees true upper Viburnum whole winter winter-bud young leaves 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...
Informații bibliografice
| Titlu | On Buds and Stipules International scientific series |
| Autor | Sir John Lubbock |
| Editor | K. Paul, Trench, Trübner & Company, Limited, 1899 |
| Exemplar original de la | Universitatea din California |
| Scanată la | 9 feb. 2007 |
| Lungime | 239 pagini |
| Exportă citatul | BiBTeX EndNote RefMan |