ABSTRACT
Corrected in vivo bioluminescence emission spectra have been obtained from monokaryotic and dikaryotic cultures and mature fruiting bodies of Pannellus stypticus. The wavelength of maximum bioluminescence was found at 525 nm. The bioluminescence emission was shifted to longer wavelengths, with a maximum at 528 nm, in basidiocarps that were deeply pigmented. The wavelengths of maximum bioluminescence of a number of fungi reported in the literature were determined to be from uncorrected spectra that legitimately cannot be compared with each other.