Mycosphaerella dearnessii. Mycosphaerella dearnessii je grzib, co go ôpisoł M.E. Barr 1972. "Mycosphaerella dearnessii" nŏleży do zorty "Mycosphaerella" i familije Mycosphaerellaceae. Żŏdne podgatōnki niy sōm wymianowane we Catalogue of Life.