Single-celled appressorial types produced by fungal taxa. (a–d) Single-celled, hyaline, irregular-shaped appressoria in Oxydothis garethjonesii [54]; (e–k) Single-celled, light green, irregular-shaped appressoria in O. metroxylonicola [54]; (l–s) Single-celled, hyaline to dark green, irregular-shaped appressoria in O. metroxylonis [54]; (t–x) Single-celled, hyaline to brown, irregular-shaped appressoria in O. palmicola [54]; (y–ab) Single-celled, hyaline, globose to subglobose appressoria in Leptosporella arengae [62]; (ac–ag) Single-celled, hyaline, globose to subglobose appressoria in Neolinocarpon rachidis [63]. Scale bar: (a,y,ac) = 50 µm; (e,t) = 20 µm; (b–d,f–s,u–x) = 10 µm; (z–ab,ad–ag) = 5 µm.