Flowers, Fruits and LeavesMacmillan, 1886 - 147 páginas |
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Página xiii
... Stamens in their natural position 18. Stamens when moved by a Bee . • • 19. Wild Chervil ( Charophyllum sylvestre ) . 21. Ditto , somewhat more advanced 8 8 14 14 15 15 16 16 18 21 21 · 21 22 22 23 20. Floret of Chrysanthemum parthenium ...
... Stamens in their natural position 18. Stamens when moved by a Bee . • • 19. Wild Chervil ( Charophyllum sylvestre ) . 21. Ditto , somewhat more advanced 8 8 14 14 15 15 16 16 18 21 21 · 21 22 22 23 20. Floret of Chrysanthemum parthenium ...
Página 2
... stamens to the pistil . This admirable work , however , did not attract the attention it deserved , and remained almost unknown until Mr. Darwin devoted himself to the subject . Our illustrious countryman was the first clearly to ...
... stamens to the pistil . This admirable work , however , did not attract the attention it deserved , and remained almost unknown until Mr. Darwin devoted himself to the subject . Our illustrious countryman was the first clearly to ...
Página 3
Sir John Lubbock. 1. ] CROSS - FERTILISATION . .3 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 in- stance that this was ...
Sir John Lubbock. 1. ] CROSS - FERTILISATION . .3 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 in- stance that this was ...
Página 7
... stamens , consisting of a stalk or filament , and a head or anther , in which the pollen is produced ; and fourthly , a pistil , which is situated in the centre of the flower , and consists generally of three principal parts ; one or ...
... stamens , consisting of a stalk or filament , and a head or anther , in which the pollen is produced ; and fourthly , a pistil , which is situated in the centre of the flower , and consists generally of three principal parts ; one or ...
Página 8
... stamens are erect . FIG . 6. - Geranium pratense ( older flower ) . The stamens have retired , and the stigmas are expanded . which the pollen is carried by the wind , the chances against any given grain reaching the pistil of another ...
... stamens are erect . FIG . 6. - Geranium pratense ( older flower ) . The stamens have retired , and the stigmas are expanded . which the pollen is carried by the wind , the chances against any given grain reaching the pistil of another ...
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Términos y frases comunes
Acacia advantage Agrimony allied amphicarpa animals anthers ants arrangement beautiful Beech bees belong black Poplar botanists branch canina capsule Cardamine carpel carried CHAP chevaux de frise close colour common contrary corolla Crown 8vo curious Darwin dispersion distance edible ejected Epilobium fertilised fertilised by insects flattened fleshy florets flower-head flowers FRUITS AND SEEDS genera genus Geranium Geranium dissectum ground grow hairs Herb Robert herbs hirta honey hooks Hornbeam Horse Chestnut Illustrations inches insects instance internodes keel large number Lathyrus leaflets leaves less Let us take light Lime Malva Maple maturity Moreover nearly Nottingham Catchfly observed outer ovary pappus perhaps petals pistil plants pollen Poplar produced protected resemblance ripe ripen rotundifolia scent seeds sepals side sixth leaf small insects Spanish Chestnut species SQUIRTING CUCUMBER stalk stamens stem stigma stomata surface Sycamore Thrincia trees tube upper Viola canina visits of insects wind wings