INBIO Costa Rica's National Biodiversity Institute (Instituto Nacional de Biodiversidad)
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| ATTA INBIO's online specimen database |
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BGBM Botanical Garden and Botanical Museum in Berlin (Germany)
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Internet Keys Harrie Sipman's compilation of Internet Lichen Keys
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Neotropical Lichen Genera Harrie Sipman's Key to Neotropical Lichen Genera
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UCR The University of Costa Rica Website
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| Biología The Escuela de Biología (Biology School) at UCR |
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| Museo Nacional Costa Rica's National Museum |
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| National Herbarium Colecciones de Historia Natural |
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UWM University of Wisconsin at Madison
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Botany Department of Botany (College of Letters and Science)
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