Hystrichosphaeridium heteracanthum subsp. heteracanthum
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"subsp. heteracanthum". Autonym. Holotype: Deflandre and Cookson, 1955, pl.2, fig.5; Fauconnier and Masure, 2004, pl.35, figs.7-8. NOW Heterosphaeridium heteracanthum subsp. heteracanthum. Originally Hystrichosphaeridium heteracanthum subsp. heteracanthum, subsequently (and now) Heterosphaeridium heteracanthum subsp. heteracanthum, thirdly Heterosphaeridium? heteracanthum subsp. heteracanthum.
Parent: Hystrichosphaeridium heteracanthum