Harrie J. M. Sipman
Hat mitgewirkt an:
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Results of a botanical expedition to Mount Roraima, Guyana : 2., Lichens
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Bibliography and checklist of foliicolous lichenized fungi up to 1992
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Results of a lichenological and bryological exploration of Cerro Guaiquinima
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Mediterranean lichens in the tropics : lichens of the mist oasis of Erkwit, Sudan