[[Category:Subspecies||Variety||Forma]] [[Parent Species::Hystrichosphaeridium recurvatum]]
Hystrichosphaeridium recurvatum subsp. parvum
Hystrichosphaeridium recurvatum var. parvum
Hystrichosphaeridium recurvatum subsp. polypes
Hystrichosphaeridium recurvatum subsp. recurvatum
Hystrichosphaeridium recurvatum var. recurvatum