Chamaesiphon komarekii species nova, a new benthic freshwater chroococcalean species (Cyanophyta/Cyanobacteria) from western coniferous forest streams in British Columbia, Canada

Chamaesiphon komarekii species nova, a new chroococcalean species (Cyanophyta, Cyanobacteria) is described from densely forested sites of two head- water streams (Spring Creek and East Creek) in the coniferous Malcolm Knapp Research Forest of the University of British Columbia, Maple Ridge, Canada. The species description, based on a traditional morphological approach is given. The position of the taxon within other, similar species of the subgenus Chamaesiphon, mainly Ch. confervicola A. BRAUN in RABENHORST 1865 (incl. Ch. curvatus NOR- DSTEDT 1878), Ch. carpaticus STARMACH 1929, Ch. longus HALLFORS et MUNSTER- HJELM 1982 is discussed.