Has participated in:
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Lichens, bryophytes and air quality
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Biology of lichens : symbiosis, ecology, environmental monitoring, systematics and cyber applications ; selected papers related in part to the IAL 6 Symposium, Asilomar, California 2008 ; with 19...
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Lichens of Mexico : the Parmeliaceae - keys, distribution and specimen descriptions
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New species of Parmeliaceae (lichenized Ascomycotina) from South America