Table 1.

Definitions of marine fungi sensu latu.

Term	Level	Criterion	Definition	Example
Marine (sensu strictu) vs. marine-derived	Strain	Physiological	Active growth and sporulation in a marine substratum	Jones et al. (2009)
	Strain	Substrate	Isolated from a marine substratum	Wang et al. (1997)
Obligate marine vs. facultative marine	Species	Habitat	Grow and sporulate exclusively in a marine or estuarine habitat	Kohlmeyer (1981)
	Species	Habitat	Grow in the marine environment but originate from freshwater or terrestrial milieus	Kohlmeyer (1981)
Primary marine vs. secondary marine	Genus or above	Phylogeny	From a lineage which evolved in the sea	Kohlmeyer (1986)
	Genus or above	Phylogeny	From a lineage which recently colonized the sea	Kohlmeyer (1986)