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Torres-Leite, F., Bruniera, C.P., Zappi, D.C. and Carrijo, T.T. 2016.

True axillary inflorescences in Rudgea (Palicoureeae, Rubiaceae), a newly reported characteristic of two new Brazilian species, R. quisquiliae and R. axilliflora

. Phytotaxa. 272, 3 (Aug. 2016), 191–200. DOI:https://doi.org/10.11646/phytotaxa.272.3.3.