DEBOUCK, D.; ARAYA-VILLALOBOS, R.; CHAVES-BARRANTES, N. Phaseolus angucianae (Leguminosae: Phaseoleae), a new bean species from Fila Cruces of southeastern Costa Rica. Journal of the Botanical Research Institute of Texas, v. 12, n. 2, p. 507-520, 20 Nov. 2018.