Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Glomeromycota C. Walker & A. Schüssler (2001) - arbuscular mycorrhizal fungi
     Class Glomeromycetes Caval.-Sm. (1998)
       Order Diversisporales C. Walker & A. Schüßler (2001), nom. inval. see Order Diversisporales C. Walker & A. Schüßler (2004)
         Family Acaulosporaceae J.B. Morton & Benny (1990)
           Genus Acaulospora Gerd. & Trappe (1974)
             Acaulospora longula Spain & N.C. Schenck (1984)