Halidrys sentence example

halidrys
  • In Fucus vesiculosus they arise in lateral pairs; in Ascophyllum they are single and median; in Macrocystis one vesicle arises at the base of each thallus segment; in Sargassum and Halidrys the vesicles arise on special branches.
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  • The oogonia arise on a stalk cell from the lining layer of the cavity, the contents dividing to form eight oospheres as in Fucus, four as in Ascophyllum, two as in Pelvetia, or one only as in Halidrys.
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  • Remarkable changes of size and outline of the oosphere have recently been described as accompanying fertilization in Halidrys.
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  • Halidrys, apical depression with leading cell.
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