Flowers, Fruits and LeavesMacmillan, 1886 - 147 páginas |
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Página 36
... stems of plants , to milk their curious little cattle . In this manner , not only do the aphides and cocci secure immunity from the attacks of the ants , but even turn them from foes into friends . They are subject to the attacks of a ...
... stems of plants , to milk their curious little cattle . In this manner , not only do the aphides and cocci secure immunity from the attacks of the ants , but even turn them from foes into friends . They are subject to the attacks of a ...
Página 38
... stem nor the leaves show a trace of such prickles . The same consideration throws light on the large number of plants which are more or less glutinous , a condition generally produced , as , for instance , in the FIG . 31. - Knautia ...
... stem nor the leaves show a trace of such prickles . The same consideration throws light on the large number of plants which are more or less glutinous , a condition generally produced , as , for instance , in the FIG . 31. - Knautia ...
Página 39
... stem is smooth ; while , on the other hand , those specimens which live on land throw out certain hairs which terminate in sticky glands , and thus prevent small insects from creeping up to the flowers . In this case , therefore , the ...
... stem is smooth ; while , on the other hand , those specimens which live on land throw out certain hairs which terminate in sticky glands , and thus prevent small insects from creeping up to the flowers . In this case , therefore , the ...
Página 40
... stem is viscid ; from which it has derived its English name , the Nottingham Catchfly . This prevents the access of ants and other small creeping insects . Each flower lasts three days , or rather three nights . The stamens are ten in ...
... stem is viscid ; from which it has derived its English name , the Nottingham Catchfly . This prevents the access of ants and other small creeping insects . Each flower lasts three days , or rather three nights . The stamens are ten in ...
Página 85
... , at the base of which , close to the stem , is the ovary . After the flower has faded , the young pod , which is oval , pointed , and very minute , is carried forward by the growth of the 86 VICIA . [ CHAP . stalk , which becomes.
... , at the base of which , close to the stem , is the ovary . After the flower has faded , the young pod , which is oval , pointed , and very minute , is carried forward by the growth of the 86 VICIA . [ CHAP . stalk , which becomes.
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Términos y frases comunes
Acacia advantage Agrimony allied animals anthers ants arrangement Beech bees belong branch canina capsule Cardamine carpel CHAP close colour common contrary corolla Crown 8vo curious Darwin Deadnettle dispersion distance Ditto Drosera Drosera rotundifolia edible Epilobium fertilised fertilised by insects flattened fleshy florets flower-head flowers Fritz Müller fruits genera genus Geranium Geranium dissectum Grant Allen ground grow Herb Herb Robert Hibiscus pedunculatus hirta honey hooks Hornbeam Horse Chestnut Illustrations inches insects instance internodes keel Lamium large number Lathyrus leaf-stalk leaflets leaves less light Lime lobed Maple maturity Moreover nearly observed ovary palmate perhaps petals pinnate pistil plants pods pollen Poplar produced protected resemblance ripe ripen scent Seedling seeds Senecio sepals small insects Spanish Chestnut species SQUIRTING CUCUMBER stalk stamens stamens and pistil stem stigma stomata surface Sycamore Thrincia throw trees tube upper Viola canina visited by insects wasp wind wings
Pasajes populares
Página 98 - But the leaves of the herbage at our feet take all kinds of strange shapes, as if to invite us to examine them. Starshaped, heart-shaped, spear-shaped, arrow-shaped, fretted, fringed, cleft, furrowed, serrated, sinuated; in whorls, in tufts, in spires, in wreaths endlessly expressive, deceptive, fantastic, never the same from footstalk to blossom ; they seem perpetually to tempt our watchfulness, and take delight in outstripping our wonder.
Página 117 - Here in the houseless wild, to direct the traveller's journey Over the sea-like, pathless, limitless waste of the desert.
Página 97 - Flowers seem intended for the solace of ordinary humanity : children love them ; quiet, tender, contented ordinary people love them as they grow; luxurious and disorderly people rejoice in them gathered : They are the cottager's treasure ; and in the crowded town, mark, as with a little...
Página 98 - Now. why is this marvellous variety, this inexhaustible treasury of beautiful forms ? Does it result from some innate tendency of each species? Is it intentionally designed to delight the eye of man ? Or has the form and size and texture some reference to the structure and organization, the habits and requirements, of the whole plant...
Página 3 - ... unknown until Mr. Darwin devoted himself to the subject. Our illustrious countryman was the first clearly to perceive that the essential service which insects perform to flowers, consists not only in transferring the pollen from the stamens to the pistil, but in transferring it from the stamens of one flower to the pistil of another. Sprengel had indeed observed in more than one instance that this was the case, but he did not altogether appreciate the importance of the fact. Mr. Darwin, however,...