ANOTHER VIEW ON THE ROLE OF PHOTOSYNTHETIC PIGMENTS IN TAXONOMY OF OXYGENIC-PHOTOTROPHIC BACTERIA - PROPOSED REJECTION OF THE ORDER PROCHLORALES FLORENZANO, BALLONI, AND MATERASSI 1986 (EMEND. BURGER-WIERSMA, STAL, AND MUR 1989), THE FAMILY PROCHLORACEAE FLORENZANO, BALLONI, ANDMATERASSI 1986, AND THE FAMILY PROCHLOROTRICHACEAE BURGER-WIERSMA, STAL, AND MUR 1989

We propose that the order Prochlorales Florenzano, Balloni, and Matera ssi 1986 (emend, Burger-Wiersma, Stal, and Mur 1959), the family Proch loraceae Florenzano, Balloni, and Materassi 1986, and the family Proch lorotrichaceae Burger-Wiersma, Stal, and Mur 1989, validly published i n the International Journal of Systematic Bacteriology under the rules of the Bacteriological Code, be rejected because of the imperfection of ordinal diagnosis. The oxgenic-phototrophic prokaryotes involved ar e proposed to he incorporated under their validly published names into the orders Chroococcales and Oscillatoriales of the ''Cyanobacteria'' group, Correspondingly, the latter is proposed to be upgraded to equa l ''Oxygenic photosynthetic bacteria'' (Section 19 in Bergey's Manual) .