Basionym Name:Merismatium deminutum subsp. longisporum Cl. Roux & Nav.-Ros., in Roux, Gueidan & Navarro-Rosinés, Mycotaxon 84: 10 (2002)
Homotypic synonyms:Halospora deminuta subsp. longispora (Cl. Roux & Nav.-Ros.) Cl. Roux & Nav.-Ros., in Roux, Bull. Soc. linn. Provence, num. spéc. 16: 216 (2012)Halospora longispora (Cl. Roux & Nav.-Ros.) Hafellner, Biblthca Lichenol. 106: 89 (2011)