PT Journal AU Uher, B TI Morphological characterization of three subaerial Calothrix species (Nostocales, Cyanobacteria). SO Fottea PY 2007 BP 33 EP 38 VL 7 IS 1 DI 10.5507/fot.2007.002 DE cyanobacteria; cyanophytes; subaerial habitats; Calothrix; Slovensky raj National park; Slovakia AB This paper characterizes and discusses the concept of species Calothrix braunii, C. capitularis spec. nova and C. parietina which were identified on subaerial rocky substrates in gorges of the Slovensky raj National Park in Slovakia. In this paper, we focused on phenotypic characters, i.e. natural and cultural morphological variability. Their variable and stabile phenotypic markers are discussed. ER