Chlorosaccus ulvaceus Messik. and Vischer

@article{Flint1951ChlorosaccusUM,
  title={Chlorosaccus ulvaceus Messik. and Vischer},
  author={E. A. Flint},
  journal={Nature},
  year={1951},
  volume={168},
  pages={999-1000}
}
BETWEEN April and October of this year, a rare member of the Xanthophyceæ, Chlorosaccus1, a genus not previously recorded in the British Isles, has been collected on eight different occasions in east Yorkshire. It occurs in two much-shaded streams, one of them near South Cave, the other at Cottingham. From the former locality Chlorosaccus has now disappeared and in the latter it is extremely rare. 
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