Proschkina-Lavrenko, A.I. (1951). Algae nonnullae novae. II. Botaniceskie materialy otdela sporovyh rastenij Botanicheskogo instituta imeni V.L. Komarova, Akademii Nauk S.S.S.R. Notulae systematicae e sectione cryptogamica instituti botanici nomine V.L. Komarovi academiae scientiarum URSS, 7: 69-74, 21 fig.