NAKAZAWA, Atsushi, & Hisayoshi NOZAKI 2004 (Aug.) Phylogenetic analysis of the tetrasporalean genus Asterococcus (Chlorophyceae) based on 18S ribosomal RNA gene sequences J. Jap. Bot. 79(4): 255-261, 1 fig., 2 tables Tetrasporales in the CW group clearly polyphyletic |