Sirodotia (Batrachospermales, Rhodophyta) in Australia and New Zealand

Abstract

Two species of Sirodotia from Australia and New Zealand are documented, including descriptions, photomicrographs, maps and keys. Sirodotia goebelii sp. nov., known only from a single nineteenth century collection from south-western Western Australia, has carpogonia with a broad base and usually pedicellate and deflexed trichogyne, long and profusely branched erect gonimoblasat filaments, and longer, elongate carposporangia. Sirodotia suecica Kylin is widespread in Australia and New Zealand, including a number of noteworthy variants. All other species of Sirodotia reported from the region are referred to S. suecica.