New species of Austroboletus (Boletaceae) in Australia

Three new species of Austroboletus are described from Australia. Austroboletus austrovirens has been collected repeatedly in northern Queensland and the Northern Territory, and is primarily distinguished by its dry, green pileus and stipe ornamentation, and boletoid spores with meandering ridges and pits. Austroboletus viscidoviridis is known from southeastern coastal Queensland and Cape Tribulation; it is recognized by a glutinous-viscid, olive-green pileus, brown reticulum on the stipe, and amygdaliform spores with nodulose-tuberculate ornamentation. Austroboletus roseialbus has only been collected in eastern New South Wales and is characterized by a white pileus with subtle rosy tints, and flattened, white, lanose patches; the spores are amygdaliform with irregular alveolate-reticulate ornamentation.