. Blossom hosts and insect guests; how the heath family, the bluets, the figworts, the orchids and similar wild flowers welcome the bee, the fly, the wasp, the moth and other faithful insects. Fertilization of plants. "Blossom Hosts and Insect Guests the column, and at a sharp inward angle, is the stigma. In the freshly opened flower (Fig. 3, A) the column inclines forward, bringing the anther low down, and its base directly opposite the V-shaped orifice in the lip, which also is quite firmly closed beneath the equally converging upper hood of the blossom. The entrance is thus much narrow
. Blossom hosts and insect guests; how the heath family, the bluets, the figworts, the orchids and similar wild flowers welcome the bee, the fly, the wasp, the moth and other faithful insects. Fertilization of plants. "Blossom Hosts and Insect Guests the column, and at a sharp inward angle, is the stigma. In the freshly opened flower (Fig. 3, A) the column inclines forward, bringing the anther low down, and its base directly opposite the V-shaped orifice in the lip, which also is quite firmly closed beneath the equally converging upper hood of the blossom. The entrance is thus much narrowed. If we insert a pin in this V-shaped en- trance, it comes in contact w^ith the sensitive mem- brane below the anther, and it is immediately rup- tured, as shown at Fig. 4, D. The sticky gland is brought into immediate contact, and clasps the pin, which, now being withdrawn, brings away the pollen, as in E and F. Thus it is naturally removed on the tongue of its sipping bee. The further demonstration will be better shown by profile sections (Fig. 5). Nectar is secreted in the hollow of the lip indicated, somewhat as in the cypripedium. If we now imitate with a probe the habit of the insect and the action of its tongue, we may witness a beautiful contrivance for cross-fertilization. 148 PROPERTVOF A. AM. COLLEGE library;. 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 Gibson, W. Hamilton (William Hamilton), 1850-1896; Davie, Eleanor E. New York, Newson
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Keywords: ., bookauthorgibsonwh, bookcentury1900, bookdecade1900, bookyear1901
