Abstract
M.Sc.
Several characteristics of the homothallic species, Chaetomium aureum, c erraticum, c flavigenum, c rubrogenum and c trilaterale, were examined and compared. Morphological details such as perithecial structure, form and ornamentation of the setae
and spores, physiological aspects such as formation of pigment and cellulolytic activity as well as nuclear behaviour during ascosporogenesis were examined to determine their species differentiating potential. Although pigment formation and ornamentation of setae are environment dependent these features could be useful in species delimitation ...