A new Eurystyles from Nicaragua Heller, Alfonso H creator text book Chicago, Ill Field Museum of Natural History 1968 1968
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ENG Eurystyles borealis Nicaragua Orchids QK1 .F4 v. 31, no. 12 584/.15 Fieldiana, Botany, v. 31, no. 12 https://www.biodiversitylibrary.org/bibliography/42247 Publication (Field Museum of Natural History), 1037 https://www.biodiversitylibrary.org/bibliography/2419 983376 10.5962/bhl.title.2419