돌잔고사리속 Microlepia PRESL

1. 포막 겉에 굳은 털이 있고 중축 양면에 털이 있다.

2. 잎은 1 회 우상복엽이고 중축 양면에 털이 있다 ·················································································· 49. 돌잔고사리

2. 잎은 2회 우상복엽이고 중축 표면에 털이 없다 ·················································································50. 겹돌잔고사리

1. 포막은 털이 없거나 밑에 1~2 개의 긴 털이 있으며 중축과 우축 표면에 털이 없다  ········································ 51. 돌토끼고사리