Cladophorella netzahualpillii sp nov (Cladophorales, Ulvophyceae), a species reproducing by spores

Abstract

A new species of Cladophorella, C. netzahualpillii Galicia Br Novelo, is described from the walls of some tanks of brackish water near Texcoco Lake, Mexico. The characteristic features of this cladophoroid filamentous alga are its reproduction by spores, the absence of a system of prostrate filaments with only a few rhizoids and the simultaneous germination of series of akinetes to form a pseudoparenchymatous basal system. The thallus forms tufts 4-5 mm high, with mainly spherical intercalary and terminal akinetes, which have a lamellated wall and a thick sheath. The sporangia are mainly terminal and cylindrical or triangular in shape with spherical or oblong spores.