Template:Echternacht et al., 2011
- Echternacht, L., Sano, P.T., Trovó, M. & Dubuisson, J.-Y. 2011. Phylogenetic analysis of the Brazilian microendemic Paepalanthus subgenus Xeractis (Eriocaulaceae) inferred from morphology. Botanical Journal of the Linnean Society 167(2): 137–152. DOI: 10.1111/j.1095-8339.2011.01170.x.