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6 882369 Richardia humistrata (Cham. & Schltdl.) Steudel [125 882419 Richardsonia humistrata Cham. & Schltdl.]
C.F.P. von Martius, A.G. Eichler, I. Urban, Fl. Bras., vol. 6(6): fasicle 101, (Rubiaceae tribus VII-XIX): t. 88 (1888) [C.F. Schmidt]
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