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| rusda-package | Interface to USDA Databases |
| associations | Downloads associations for input species from SMML Fungus-Host DB |
| literature | Downloads literature from SMML Literature DB |
| meta_smml | Downloads and evaluate species presence in SMML DBs |
| substrate | Downloads substrate data from SMML Nomenclature DB |
| synonyms_smml | Downloads synonym data from SMML Nomenclature DB |