O. Pringsheim

EXPERIMENTAL ELIMINATION OF CHROMATOPHORES AND EYE‐SPOT IN EUGLENA GRACILIS

O. Pringsheim, 1952 .

The Growth Requirements of Porphyridium Cruentum: with Remarks on the Ecology of Brackish Water Algae

G. Ernest, O. Pringsheim, 1949 .

AXENIC CULTURE OF UTRICULARIA

E. Pringsheim, O. Pringsheim, 1962 .

[Small reports on flagellates and algae. IV. Porphyridium cruentum and Porphyridium marinum].

E. Pringsheim, O. Pringsheim, 1956, Archiv für Mikrobiologie.