III. A Contribution to the Freshwater Algae of CeylonPublished in Transactions of the Linnean Society of London. 2nd Series: Botany, in 1902, in volume 6, issue 3, pages 123-215Created: 2025-10-27, modified: 2025-10-27doi:10.1111/j.1095-8339.1902.tb00276.x