Phacus circulatus Pochmann

Levanets, Anatoliy, Vuuren, Sanet Janse Van, Łukomska-Kowalczyk, Maja & Zakryś, Bożena, 2025, Annotated checklist of photosynthetic freshwater euglenids (Euglenales: Euglenaceae and Phacaceae) from southern Africa, Phytotaxa 710 (1), pp. 22-56 : 46

123. Phacus circulatus Pochmann

= Phacus orbicularis var. zmudae Namyslowski

SA: Huber-Pestalozzi 1930 [Western Cape Province, Knysna forest, pond (swamp) in Deep Walls (Forest Research), on the road to the forestry experimental station. Pond is about 25 m in diameter and 20 to 40 cm deep, heavily overgrown with Potamogeton and other hydrophytes, no Sphagnum , leg. G. Huber-Pestalozzi, October 1926], as Phacus orbicularis var. zmudae Namyslowski.