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Keywords from Image Description:
Callithamnion tetragonum NYPL b. en Callithamnion tetragonum nypl org Scan by NYPL Callithamnion tetragonum Algae Photography Halstead Place Sevenoaks Spencer Collection cdcfddbbdabc Photographs of British algae cyanotype impressions ddaeadeeaa repo nypl org PDoldauto DEFAULTSORT NYPLb Callithamnion tetragonum Images uploaded