''Gyalectidium'' is a genus of lichen-forming fungi in the family Gomphillaceae. A 2020 estimates placed 52 species in the genus. The genus was circumscription (taxonomy), circumscribed by Swiss lichenologist Johannes Müller Argoviensis in 1881. He included 3 species: ''G. xantholeucum'', ''G. dispersum'', and ''G. filicinum''; the last of these is now the type species of the genus.

Species

*''Gyalectidium appendiculatum'' *''Gyalectidium areolatum'' *''Gyalectidium atrosquamulatum'' *''Gyalectidium aurelii'' *''Gyalectidium australe'' *''Gyalectidium barbatum'' – Mexico *''Gyalectidium catenulatum'' *''Gyalectidium caucasicum'' *''Gyalectidium chilense'' *''Gyalectidium ciliatum'' *''Gyalectidium cinereodiscus'' *''Gyalectidium conchiferum'' *''Gyalectidium denticulatum'' *''Gyalectidium fantasticum'' *''Gyalectidium filicinum'' *''Gyalectidium flabellatum'' *''Gyalectidium floridense'' – Florida, USA *''Gyalectidium fuscum'' *''Gyalectidium gahavisukanam'' *''Gyalectidium imperfectum'' *''Gyalectidium kenyanum'' *''Gyalectidium laciniatum'' *''Gyalectidium macaronesicum'' *''Gyalectidium maracae'' *''Gyalectidium membranaceum'' *''Gyalectidium microcarpum'' *''Gyalectidium minus'' *''Gyalectidium nashii'' *''Gyalectidium novoguineense'' *''Gyalectidium pallidum'' *''Gyalectidium paolae'' *''Gyalectidium plicatum'' *''Gyalectidium puntilloi'' *''Gyalectidium radiatum'' *''Gyalectidium rosae-emiliae'' *''Gyalectidium sanmartinense'' *''Gyalectidium shimanense'' – Japan *''Gyalectidium tuckerae'' – Louisiana, USA *''Gyalectidium ulloae'' – Mexico *''Gyalectidium verruculosum'' *''Gyalectidium viride'' – Alabama, USA *''Gyalectidium yahriae'' – Florida, USA

References

Gomphillaceae Lichen genera Graphidales genera Taxa described in 1881 Taxa named by Johannes Müller Argoviensis {{Lecanoromycetes-stub