Haug, I, J Lempe, J Homeier, M Weiss, S Setaro, F Oberwinkler, and I Kottke, Graffenrieda emarginata (Melastomataceae) forms mycorrhizas with  Glomeromycota and with a member of Hymenoscyphus ericae aggr. In the organic soil of a neotropical mountain rain forest. Canadian Journal of Botany 82:340-356. (2004). doi:10.1139/b03-153