Plant-life, with 74 full-page illus., 24 being from photos, by the author and 50 in colour from drawings . styles, while others produce short-styled flowers. The lower portion of the corolla in bothcases is tubular. In the long-styled, or pin-eyed,flowers the stigma appears at the top of the tube, andthe anthers of the stamens are placed about half-waydown. In the short-styled, or thrum-eyed, flowersthe anthers are at the top of the tube, and the stigmareaches only about half-way up. Honey in both kindsof flowers is secreted at the base of the ovary at thebottom of the corolla tube; it can be
Plant-life, with 74 full-page illus., 24 being from photos, by the author and 50 in colour from drawings . styles, while others produce short-styled flowers. The lower portion of the corolla in bothcases is tubular. In the long-styled, or pin-eyed,flowers the stigma appears at the top of the tube, andthe anthers of the stamens are placed about half-waydown. In the short-styled, or thrum-eyed, flowersthe anthers are at the top of the tube, and the stigmareaches only about half-way up. Honey in both kindsof flowers is secreted at the base of the ovary at thebottom of the corolla tube; it can be reached only bylong-tongued insects. If we take a bristle, and insert itinto the tube of a thrum-eyed flower, pollen willadhere to it just at the level of the anthers. Now, in-serting the bristle into a pin-eyed flower, we flndthat the attached pollen will coincide with the level ofthe stigma. Further, when we withdraw the bristlefrom this flower, it will be marked with pollen from theanthers half-way down in the tube, and this mark willbe on an exact level with the stigma of a thrum-eyed Platk LXII,.
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Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1915
