1	"Leaves covered by overlapping scales on the lower surface"	"Asplenium cordatum"
1	"Leaves glabrous or with scattered scales on the lower surface"	2
2	"Leaves 2-3 times pinnately divided"	"Asplenium aethiopicum"
2	"Leaves simply pinnate"	3
3	"Pinnae broadly oblong to suborbicular, less than twice as long as wide"	"Asplenium trichomanes"
3	"Pinnae oblong, more than twice as long as wide"	"Asplenium monanthes"