Deble, L.P., de Oliveira Deble, A.S. & Alves, F.D.S. (2012)

Two new species of Cypella (Iridaceae: Tigridieae) from Rio Grande do Sul, Brazil

. Phytotaxa 71 (1): 59–68. https://doi.org/10.11646/phytotaxa.71.1.12