Hystrichokolpoma bulbosum subsp. turgidum

"subsp. turgidum" (Williams and Downie, 1966a, p.178–179, pl.17, fig.5) Lentin and Williams, 1981, p.134.  Holotype: Williams and Downie, 1966a, pl.17, fig.5.  NOW Hystrichokolpoma cinctum subsp. turgidum.  Originally Hystrichokolpoma eisenackii var. turgidum, subsequently Hystrichokolpoma eisenackii subsp. turgidum, thirdly Hystrichokolpoma bulbosum subsp. turgidum, fourthly (and now) Hystrichokolpoma cinctum subsp. turgidum.  This combination was erroneously made by Lentin and Williams (1981, p.134), when the subspecies should have been placed under Hystrichokolpoma cinctum Klumpp, 1953.  Age: early Eocene.

Parent: Hystrichokolpoma bulbosum