Glomus intraradices, described from a citrus plantation in Florida (Schenck & Smith 1982), is an arbuscular mycorrhizal fungus (AMF) that predominantly forms its spores intraradically. After Glomus was shown to be well separated at the generic level from this species, G. intraradices was renamed Rhizophagus intraradices (Schüβler & Walker 2010) following previous use of the genus name for AMF forming their spores in roots (Butler 1939, Gerdemann & Trappe 1974). Sieverding et al. (2014) proposed that Rhizophagus should be replaced with Rhizoglomus, but Walker et al. (2017) challenged this and proposed that the generic name Rhizophagus should be conserved, but with a change of type species to R. intraradices. We follow recommendation 14A.1 of the International Code of Nomenclature for algae, fungi, and plants (ICNafp) (Turland et al. 2018) by retaining ‘existing usage’.

Glomus intraradices, described from a citrus plantation in Florida (Schenck & Smith 1982), is an arbuscular mycorrhizal fungus (AMF) that predominantly forms its spores intraradically. After Glomus was shown to be well separated at the generic level from this species, G. intraradices was renamed Rhizophagus intraradices (Schüβler & Walker 2010) following previous use of the genus name for AMF forming their spores in roots (Butler 1939, Gerdemann & Trappe 1974). Sieverding et al. (2014) proposed that Rhizophagus should be replaced with Rhizoglomus, but Walker et al. (2017) challenged this and proposed that the generic name Rhizophagus should be conserved, but with a change of type species to R. intraradices. We follow recommendation 14A.1 of the International Code of Nomenclature for algae, fungi, and plants (ICNafp) (Turland et al. 2018) by retaining ‘existing usage’.