Bluish green bioluminescence in a diatom, Melosira varians Ag. growing in an abandoned tin mine in Cornwall was observed. Upon microscopic examination the chloroplasts of the algae were found to be very pale but no other feature was seen which could be correlated with the luminescence.
Bioluminescence in Melosira varians Ag..
International Journal of Speleology,
Available at: http://scholarcommons.usf.edu/ijs/vol2/iss4/14