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Martínez-González, C., Alcántara, O., Luna-Vega, I. and Garcia-Sandoval, R. 2015.

Phylogenetic placement and new data on macro and micro morphology of Nopalxochia phyllanthoides (Cactaceae), an endangered species from Mexico

. Phytotaxa. 222, 4 (Aug. 2015), 241–250. DOI:https://doi.org/10.11646/phytotaxa.222.4.1.