Stylaster has cyclosystems. In Allopora the cyclostems resemble the calyces of Anthozoan corals. [Please select]
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The distal parts of the heads are covered with calyces. [Please select]
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They are very partial to the nectar enclosed within the calyces of rhododendron flowers. [Please select]
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He flits about in the sunbeams, passing from flower to flower, extracting with his long tubular tongue the nectar hidden away in their calyces. [Please select]
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