| Siphonoglossa mexicana Hilsenb. | Daniel, T. F., T. I. Chuang & M. A. Baker. 1990. Chromosome numbers of American Acanthaceae. Syst. Bot. 15(1): 13–25. | 90-91 | 11 | |
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| Siphonoglossa mexicana Hilsenb. | Hilsenbeck, R. A. 1989. A new species of Siphonoglossa (Acanthaceae) and some infrageneric transfers. Madroño 36: 198–207. | 88-89 | 11 | |
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| Siphonoglossa mexicana Hilsenb. | Daniel, T. F. & T. I. Chuang. 1993. Chromosome numbers of New World Acanthaceae. Syst. Bot. 18: 283–289. | 92-93 | 11 | |
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