How effective are DNA barcodes in the identification of African rainforest trees?

Parmentier, I.; Duminil, J.; Kuzmina, M.; Philippe, M.; Thomas, D.W.; Duncan, T.; Kenfack, D.; Chuyong, G.B.; Hardy, O.J. -2013-How effective are DNA barcodes in the identification of African rainforest trees?-PLoS ONE 8(4)-e54921