Abstract
Chaetomium lawransamesii has been described as a new species. This is characterised in possessing bigger fusiform ascospores and myceloid terminal hair on its perithecia. During our studies on the ecology and taxonomy of plant surface fungi, we have isolated several forms isolated. This paper describes a no w species of Chaetomium which differes from all the known species possessing fusiform ascospores (L o d h a 1964; Rai, Mukerji 1962). It has characteristic long myceloid hairs on its body. This form has been named as C. lawransamesii in honour of late Dr Lawrence M. Ames.