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Books Books 1 - 4 of 4 on ... are mostly diurnal and have nothing to do in the work; and wherever I have excluded....  
" ... are mostly diurnal and have nothing to do in the work; and wherever I have excluded the moth from the flowers, by enclosing the latter with netting, no fruit has been produced. I am therefore led to believe that the few rare instances of yucca-fertilization,... "
Transactions of the Academy of Science of Saint Louis - Page 208
by Academy of Science of St. Louis - 1878
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The American Naturalist, Volume 7

Biology - 1873
...led to believe that the few rare instances of yucca-fertilization, in localities where Pronuba maybe presumed not to occur, have been brought about by...the stigma by the conniving of the closing petals. 1 have found the stamens of varying length in the flowers on the same panicle and in some instances...
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Proceedings of the American Association for the Advancement of Science

American Association for the Advancement of Science - Science - 1881
...insect accidental! >/, or by the stamens reaching an exceptional leiujlh, and the anthers beiny browjht into contact with the stigma by the conniving of the...and in some instances almost as long as the pistil." 10 The accompanying figure (fig. 5) illustrates a few pistils from the same species of Yucca, and indicates...
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Proceedings of the American Association for the Advancement of Science

American Association for the Advancement of Science - Science - 1881
...therefore, Jed to believe that the few rare instances of yucca fertilization, in localities where PitONCBA may be presumed not to occur, have been brought about...accidentally, or by the stamens reaching an exceptional lewjtli, and the anthers being brought into contact with the stigma by the conniving of the closing...
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THE AMERICAN ASSOCITION

THE PERMANENT SECRETARY - 1881
...few rare instances of yucca fertilization, in localities wliere PKONUBA may be presumed not to oc&jr, have been brought, about by another insect accidentally,...reaching an exceptional length, and the anthers being brouglU into contact with the stigma by the conniving of the closing petal*. I have found the stamens...
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