Baltisphaeridium bulbosum Appendix A

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"bulbosum" (Ehrenberg, 1837b, pl.1, fig.17) Lentin and Williams, 1973, p.173.  Emendation: Morgenroth, 1968, p.546–547, as Hystrichokolpoma bulbosum.  Holotype: Ehrenberg, 1837b, pl.1, fig.17.  Neotype: Morgenroth, 1968, pl.44, fig.6, designated by Morgenroth (1968, p.546).  Combination not validly published: basionym not fully referenced.  NOW Hystrichokolpoma.  Originally Xanthidium bulbosum (Appendix A), subsequently Hystrichosphaera bulbosa (combination not validly published), thirdly Hystrichosphaeridium bulbosum, fourthly Ovum hispidum subsp. bulbosum (name not validly published, Appendix A), fifthly (and now) Hystrichokolpoma bulbosum, sixthly Baltisphaeridium bulbosum (combination not validly published).  Taxonomic senior synonym: Xanthidium (as Hystrichosphaeridium) tubiferum, according to Stover and Evitt (1978, p.55) — however, Lentin and Williams (1981, p.134) retained Xanthidium (as Hystrichokolpoma) bulbosum.  This combination cannot be legitimized since it would create a junior homonym of Baltisphaeridium bulbosum Kjellström, 1971a.  Age: Danian.

Parent: Baltisphaeridium_Appendix A