Template:Wilce & Maggs, 1989
- Wilce, R.T. & Maggs, C.A. 1989. Reinstatement of the genus Haemescharia (Rhodophyta, Haemeschariaceae fam. nov.) for H. polygyna and H. hennedyi comb. nov. (=Petrocelis hennedyi). Canadian Journal of Botany 67: 1465–1479, 60 figs, 1 table.