Template:Sym & Pienaar, 1999
- Sym, S.D. & Pienaar, R.N. 1999. An additional punctate species of Pyramimonas, P. formosa sp. nov., and its impact on the subgenera Punctatae and Pyramimonas (Prasinophyceae, Chlorophyta). Journal of Phycology 35(6): 1313–1321. DOI: 10.1046/j.1529-8817.1999.3561313.x
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