The vascular wilt pathogen currently causing severe die-back and mortality
of takamaka in the Seychelles has morphological and physiological character
s inconsistent with its placement in Verticillium. Features of the pathogen
warrant its transfer to Leptographium and Leptographium calophylli comb. n
ov, is proposed. L. calophylli is described in detail based on new collecti
ons.