Water and soil samples were obtained from cerrado areas in the state of São Paulo, Brazil, from February, 1999 to February, 2001, brought to the laboratory and treated by the multiple baiting technique. Among the pythiaceous fungi isolated, nine species belonging to the genus Pythium Pringsheim: Pythium echinulatum Matthews, P. graminicolum Subramanian, P. irregulare Buisman, P. rostratum Butler, P. spinosum Sawada, P. torulosum Coker & Patterson, P. ultimum Trow var. ultimum, P. undulatum Petersen and P. vexans de Bary. P. undulatum is mentioned for the first time to Brazil.
biodiversity; Brazil; cerrado vegetation; Pythium
