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Keywords from Image Description:
Nutting Plate XI. en Sertularella dentifera Torrey gonangium Symplectoscyphus dentiferus Sertularella torreyi Nuttirig part of stem with gonangium Sertularella diaphana Sertularella torreyi end of branch Sertularella crenulata Nutting part of branch Sertularella crenulata hydrotheca much enlarged Sertularella crenulata gonangium