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Keywords from Image Description:
Polysiphonia urceolata NYPL b. en Polysiphonia urceolata nypl org Scan by NYPL Polysiphonia urceolata Algae Photography Halstead Place Sevenoaks Spencer Collection aacfadabc Photographs of British algae cyanotype impressions ddadadeeaa repo nypl org PDoldauto DEFAULTSORT NYPLb Polysiphonia stricta Images uploaded by NYPLb