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Chrysophyte stomatocysts in Africa: the first description of an assemblage in the recent sediments of a thermo-mineral spring in Egypt

J. Piątek, M. Piątek, B.A. Zeeb and A. El Shahed. 2009. Chrysophyte stomatocysts in Africa: the first description of an assemblage in the recent sediments of a thermo-mineral spring in Egypt. Phycologia 48: 13–23. DOI: 10.2216/08-50.1. An assemblage of chrysophycean stomatocysts from the recent sediments of a thermo-mineral spring in Ain Sukhna in Egypt was investigated using scanning electron microscopy. Seven stomatocysts are reported from the spring; four are described as new morphotypes, and three have previously been observed in various parts of the world. A new term, ‘ornamentation with bullate swellings,’ is introduced to describe a type of ornamentation not observed to date in any known stomatocysts. The present study documents for the first time an assemblage of chrysophyte stomatocysts from Africa in a unique ecosystem consisting of a thermal, highly mineralized spring.