. Animal biology. Biology; Zoology; Physiology. Fig. 219. — Pollination of an Orchid, Cypripedium, by a Bumble Bee. A, Bee forcing its way into the flower; B, Bee obtaining nectar in the flower; C, Bee starting to escape brushes pollen upon the stigma of the flower; D, be- fore finally escaping the Bee receives another load of pollen from the anther. pollen baskets are removed by the aid of the spurs with which the mesothoracic legs are provided. (Figs. 218, 219.) Moreover, the structural adaptations of the worker Bee are but one aspect of a reciprocal fitness. Many of the flowers which the Be
. Animal biology. Biology; Zoology; Physiology. Fig. 219. — Pollination of an Orchid, Cypripedium, by a Bumble Bee. A, Bee forcing its way into the flower; B, Bee obtaining nectar in the flower; C, Bee starting to escape brushes pollen upon the stigma of the flower; D, be- fore finally escaping the Bee receives another load of pollen from the anther. pollen baskets are removed by the aid of the spurs with which the mesothoracic legs are provided. (Figs. 218, 219.) Moreover, the structural adaptations of the worker Bee are but one aspect of a reciprocal fitness. Many of the flowers which the Bee visits show remarkable adaptations for the reception of the Bee and for dusting it with pollen, because Bees are effective agents in transferring pollen from flower to flower and thus insur-. 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 Woodruff, Lorande Loss, 1879-1947. New York The Macmillan company
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