Reference

Charles J. O'Kelly, G.L. Floyd, Maurice A. Dube (1984): The Fine Structure of Motile Cells in the Genera Ulvaria and Monostroma, with Special Reference to the Taxonomic Position of Monostroma oxyspermum (Ulvophyceae, Chlorophyta) – Österreichische Botanische Zeitschrift = Plant Systematics and Evolution – 144: 179 - 199.