Reddy, M.M., Stegenga, H., Anderson, R.J. & Bolton, J.J. (2020)

An updated species inventory of Callithamnion sensu lato Rhodophyta, Callithamniaceae in South Africa with the description of Callithamnion africanum sp. nov.

. Phytotaxa 461 (3): 139–154. https://doi.org/10.11646/phytotaxa.461.3.1