Wild Flowers - An Aid to Knowledge of Our Wild Flowers and Their Insect Visitors by Neltje Blanchan
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page 30 of 638 (04%)
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and violet, that they may reach into the deep recesses of the
spurs where the nectar is hidden from all but benefactors. The TALL WILD LARKSPUR (D. urceolatum; D. exaltatum of Gray) waves long, crowded, downy wands of intense purplish blue in the rich woods of Western Pennsylvania, southward to the Carolinas and Alabama, and westward to Nebraska. Its spur is nearly straight, not to increase the difficulty a bee must have in pressing his lips through the upper and lower petals to reach the nectar at the end of it. First, the stamens successively raise themselves in the passage back of the petals to dust his head; then, when each has shed its pollen and bent down again, the pistil takes its turn in occupying the place, so that a pollen-laden bee, coming to visit the blossom from an earlier flower; can scarcely help fertilizing it. It is said there are but two insects in Europe with lips long enough to reach the bottom of the long horn of plenty hung by the BEE LARKSPUR (D. elatum), that we know only in gardens here. Its yellowish bearded lower petals readily deceive one into thinking a bee has just alighted there. >From April to June the DWARF LARKSPUR or STAGGER-WEED (D. tricorne), which, however, may sometimes grow three feet high, lifts a loose raceme of blue, rarely white, flowers an inch or more long, at the end of a stout stem rising from a tuberous root. Its slightly ascending spur, its three widely spreading seed vessels, and the deeply cut leaf of from five to seven divisions are distinguishing characteristics. From Western Pennsylvania and Georgia to Arkansas and Minnesota it is found in rather stiff soil. Butterflies, which prefer erect flowers, have |
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