Crouch, N.R., Martínez-Azorín, M., Crespo, M.B., Pinter, M. and Alonso-Vargas, M. Á. 2018. Zingela (Asparagaceae, Scilloideae), a distinct new urgineoid genus from KwaZulu-Natal, South Africa. Phytotaxa. 371, 1 (Sep. 2018), 33–41. DOI:https://doi.org/10.11646/phytotaxa.371.1.4.