Robuta

https://outreach.wikimedia.org/wiki/File:MELASTOMATACEAE_pleroma_costatocalyx_F.S.Mey.,_L.Kollmann_%26_R.Goldenb,_INMA_(MBML050000).pdf File:MELASTOMATACEAE pleroma costatocalyx F.S.Mey., L.Kollmann & R.Goldenb, INMA (MBML050000).pdf -...