Cyanidium caldarium Geitler StrainCyanidium caldarium GeitlerDivisionRhodophytaClassCyanidiophyceaeOrderCyanidialesGenusCyanidiumCollectorCiniglia C. (2000)AuthenticNOStrain Number023Low pH environmentYESHabitatsulphur spring T 35°C, pH 1.5PlaceSanta Croce, Caramanico terme (PE)CountryItalyMedium1AxenicYESLiquidNO