Abstract
A survey is given of the known Phaeophyta of southern Australia, including synonomy, references, type data, and critical notes. The following new taxa are described: Sphacelaria carpoglossi, Distromium flabellaturn, and D. multifidum. Many names are reduced to synonomy and earlier specific names used in a number of cases. The southern Australian Phaeophyta include nearly 200 recognized species, and several minute taxa remain undescribed. Noteworthy orders are the Sphacelariales (4 genera and 23 species), Dictyotales (13 genera and 41 species), Sporochnales (6 genera and 11 species), and Fucales (16 genera and some 69 species).