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Meanwhile, surveys continue at Cape Henlopen for a threatened plant species, the seabeach amaranth.

Park officials were so concerned about the potential effects on one endangered plant, the seabeach amaranth, that they began placing wire mesh cages around them to keep hungry horses at bay.

The threatened seabeach amaranth, a low-growing, waxy-leaved plant with reddish stems, sprouts intermittently above the high tide line.

Their circuit had brought them round to the landward side of the fortress, to a point bearing south by east of the town, when through a breach—yes, a clean breach!—in the wall they gazed out across the fosse and along a high turfy ridge that roughly followed the curve of the cliffs and of the seabeach below.

But at last they saw a gleam of daylight, then a strip of blue sky, and the mermaid bade them stoop and creep through what seemed a narrow crack in the ground, and both stood on the broad seabeach as the day was breaking and the tide ebbing fast away.