Krahl, D. R. P.; Schmal, P.; Chiron, G.; Silva, J. B. F. D.; Krahl, A. H.; Cantuária, P. D. C. Catasetum × ronaldoi: the First Natural Hybrid of the Genus for the Northeastern of Brazil and Taxonomic Notes for C. purum. Phytotaxa 2026, 755, 58-72.