Rachicallis americana (Jacq.) Hitchc. [ Hedyotis americana Jacq.]
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Rachicallis americana (Jacq.) Hitchc. [ Hedyotis americana Jacq.] [Rubiaceae]
N.J. von Jacquin, Select. Stirp. Amer. Hist., ed. 1780-1781: p. 15, t. 18 (1780-1781) [N.J. Jacquin]