 ... 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...  Flowers, Fruits and Leaves - Página 3por Sir John Lubbock - 1886 - 147 páginasVista completa - Acerca de este libro
 | Sir John Lubbock - 1879 - 250 páginas
...the essential service which insects perform to flowers, consists not only in transferring the pollen from the stamens to the pistil, but in transferring...of cases, by actual experiment. More recently Fritz Miiller has even shown that in some cases pollen, if placed on the stigma of the same flower, has no... | |
 | Sir John Lubbock - 1879 - 220 páginas
...the essential service which insects perform to flowers, consists not only iu transferring the pollen from the stamens to the pistil, but in transferring...more than one instance that this was the case, but hedid not altogether appreciate the importance of the fact. Mr. Darwin, however, has not only made... | |
 | John Lubbock (1st baron Avebury.) - 1882 - 244 páginas
...the essential service which insects perform to flowers, consists not only in transferring the pollen from the stamens to the pistil, but in transferring...altogether appreciate the importance of the fact. 4. Mr. Darwin, however, has not only made it clear from theoretical considerations, but has also proved... | |
 | Cardiff Naturalists' Society - 1886 - 990 páginas
...insects perform to flowers consists not only in transferring the pollen from the stamens to the pistils, but in transferring it from the stamens of one flower to the pistil of another. Most plants possess both male and female organs in close juxtaposition ; and if the pollen from the... | |
 | Henry T. Finck - 1887 - 586 páginas
...the essential service which insects perform to flowers consists not only in transferring the pollen from the stamens to the pistil, but in transferring...altogether appreciate the importance of the fact. Mr. DarwiH; however, has not only made it clear from theoretical considerations, but has also proved it,... | |
 | Henry T. Finck - 1887 - 650 páginas
...which icsects perform to flowers consists not only in transferring the pollen from the stamens to vhe pistil, but in transferring it from the stamens of...was the case, but he did not altogether appreciate tlie importance of the fact. Mr. Darwin, however, has not only made it clear from theoretical considerations,... | |
 | John Grier Hibben - 1905 - 472 páginas
...the special service which insects perform to flowers, consists not only in transferring the pollen from the stamens to the pistil, but in transferring...the stamens of one flower to the pistil of another." l The line of subsequent observation and experiment was thus originally suggested by the structural... | |
 | London Lond. inst - 394 páginas
...pistil, but in transferring it from the stamen of one flower to the pistil of another. Sprengel had observed, in more than one instance, that this was the case, but he did not fully appreciate the importance of the fact. Mr. Darwin, in a treatise published in 1862, showed the... | |
 | 1875 - 1112 páginas
...the first to perceive that insects are of importance to Flowers, not only in transferring the pollen from the stamens to the pistil, but in transferring...one instance that this was the case ; but he did not appreciate the importance of the fact. Mr. Darwin's remarkable memoir on Primulse was published in... | |
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