Synonymy notes: According to Nicolalde-Morejón et al., Brittonia 61(4): 320: 'Both Z. onanreyesii and Z. busselllii were published in 2008. The dates of issue are however different. The date of issue for Z. onanreyesii is 6 September 2008 and the date of issue for Z. bussellii is 16 October 2008. Thus, under Article 29.1 of the Interantional Code of Botanical Nomenclature (McNeill et al., 2007), Z. onanreyesii has priority...'
Distribution: Honduras (Cortés)