Beyerlein, P. and Pereira, H. dos S. 2018. Morphological diversity and identification key for landraces of the Amerindian yam (Dioscorea trifida L.) cultivated in the Central Amazon. Pesquisa Agropecuaria Brasileira. 53, 4 (Jun. 2018), 405–418. DOI:https://doi.org/10.1590/S1678-3921.pab2018.v53.25836.