. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. BEES AND FLOWERS. iU to reach the nectar (at tu/. tig. 1) the bee (D) strikes ^vith his head the short sterile arm ((/(?) ^Yhi(•ll acts as a sort of h^ver to bring down the long arm with its ];x>lkMi sac (a) to cover his back with the fertile dnst. Thus laden the l>nsy workman flies to another flower and,. Fig. 1.—Flower of Salvia ojHicuuilis. (Frniii Cheshire: Bi'fs iind Bcc-kfcjiing.) A. Young flower, showing an atrophied pollen sac
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. BEES AND FLOWERS. iU to reach the nectar (at tu/. tig. 1) the bee (D) strikes ^vith his head the short sterile arm ((/(?) ^Yhi(•ll acts as a sort of h^ver to bring down the long arm with its ];x>lkMi sac (a) to cover his back with the fertile dnst. Thus laden the l>nsy workman flies to another flower and,. Fig. 1.—Flower of Salvia ojHicuuilis. (Frniii Cheshire: Bi'fs iind Bcc-kfcjiing.) A. Young flower, showing an atrophied pollen sac. B. Old flower, showing the stigma. C. Young, longitudinal section. D. Same visited by a bee. E. Longitudinal section, base of the corolla tube, a fertile pollen sac; «<• sterile pollen sac; c connective which joins the two sacs and which can oscillate in hi around the filament of stamen /,• st style; luj nectary at base of ovaries; ca calyx; co corolla. as he enters, brnshes off some pollen on the 2:)rojecting stigma (.s/'). With the exception of the Salvia coeeina, stndied by Ogle and Dar- win, all the sages are thus fertilized by the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Board of Regents; United States National Museum. Report of the U. S. National Museum; Smithsonian Institution. Report of the Secretary. Washington : Smithsonian Institution
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Keywords: ., bookauthorsmithsonianinstitutio, bookcentury1800, bookdecade1840
