Arcytophyllum thymifolium (Ruiz & Pavon) Standl. [ Hedyotis thymifolia Ruiz & Pavon]
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Arcytophyllum thymifolium (Ruiz & Pavon) Standl. [ Hedyotis thymifolia Ruiz & Pavon] [Rubiaceae]
H. Ruíz López, J.A. Pavon, Fl. Peruv., vol. 1 (Plates 1-152): p. 56, t. 88, fig. a (1798) [J. Brunette]