Hutchinsonia barbata Robyns
      
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2 539759 Hutchinsonia barbata Robyns Rubiaceae
J. Hutchinson, J.M. Dalziel, R.W.J. Keay, Fl. W. Trop. Afr., ed. 2, vol. 2 : p. 175, fig. 237 (1963) [S. Ross-Craig]