Accepted By:
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Ehrendorfer, F. & M. H. J. Barfuss. 2014. Paraphyly and Polyphyly in the Worldwide Tribe Rubieae (Rubiaceae): Challenges for Generic Delimitation. Ann. Missouri Bot. Gard. 100(1–2): 79–88.
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Nasir, E. & S. I. Ali (eds). 1980-2005. Fl. Pakistan Univ. of Karachi, Karachi.
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