Open Access

Peter Wellman

• The paper present the results of a new field collection of myxomycetes (plasmodial slime moulds) on dead wood, dead bark and litter substrate in southeast New South Wales centred on Canberra (lat. 35° S, long. 149° E). The sample consists of 96 species from 493 collections. This survey is compared with four other surveys for similar substrates and similar temperate climate: southwest Western Australia, southeast Australia, New Zealand and Patagonia. The assemblages are similar in species composition and abundance, when allowance is made for the large random effect in the sampling. These five southern hemisphere assemblages have been combined into a composite assemblage. This composite assemblage is similar to those of the Iberian Peninsula (Spain and Portugal) and Britain, when allowance is made for the varying sampling of litter. This similarity may represent a single species assemblage occurring in both the Southern and Northern Hemispheres in areas of similar temperate climate.