NAKADA, Takashi, Hisayoshi NOZAKI & Masaru TOMITA 2010 Another origin of coloniality in Volvocaleans: the phylogenetic position of Pyrobotrys arnoldi (Spondylomoraceae, Volvocales) J. Eukaryotic Microbiology 57(4): 379-382, 3 figs. molecular sequences, as embryonic development, indicate a polyphyletic origin of coloniality |