면 마 과 Aspidiaceae

1. 잎은 나엽과 실엽이 있다.

2. 측맥은 떨어져 있다 ··················································································································· 개면마속

2. 측맥은 서로 붙어 있다 ············································································································ 78. 야산고비

1. 잎은 모두 같은 형태이다.

3. 측맥은 서로 떨어져 있다.

4. 포막이 있다.

5. 포자낭군은 둥글다.

6. 포막은 포자낭 밑에 달린다.

7. 포막은 구형이며 끝에서 터진다 ··························································································· 우드풀속

7. 포막은 접시형이며 성숙하면 포자낭 밑에 깔린다 ················································ 한들고사리속(바람고사리속)

6. 포막은 포자낭을 덮고 있다.

8. 포막은 맥 위에 달린다.

9. 포막은 둥글며 중심에서 붙었으므로 방패같이 보인다 ·························································· 십자고사리속

9. 포막은 신장형 또는 둥근 신장형이며 아래쪽 오목한데서 붙어있다.

10. 우편과 엽맥은 앞쪽이 밑에 위치한다 ·············································································쇠고사리속

10. 우편과 엽맥은 뒤쪽이 밑에 위치한다.

11. 엽축 표면에 털이 있다 ························································································· 처녀고사리속

11. 엽축 표면에 털이 없다 ································································································· 관중속

8. 포막은 맥과 다소 나란히 달린다.

12. 잎자루 기부는 갑자기 굵어지고 근경에 붙는 부분에 많은 인편이 있다. 잎에 뾰족한 털이 있다. 석회암 식물이다 ········ 87. 금털고사리

12. 잎자루 기부는 특히 굵어지지 않았다.

13. 엽축 표면에 뾰족한 털이 있다 ················································································ 처녀고사리속

13. 엽축 표면에 털이 없거나 마디가 있는 털이 있다 ····························································· 개고사리속

5. 포자낭군은 길다.

14. 포막은 말굽형, 갈고리형 때로는 등이 서로 닿은 것이 있다 ························································· 개고사리속

14. 포막은 등이 서로 닿은 것이 섞여있다 ·················································································· 버들참빗속

4. 포막이 없다.

15. 엽축 표면에 뾰족한 털이 있다.

16. 포자낭군은 둥글다.

17. 우편 기부에 통기공이 없다   ························································································· 설설고사리속

17. 우편 기부에 통기공이 있다  ·························································································· 처녀고사리속

16. 포자낭군은 길다  ··································································································· 138. 진퍼리고사리

15. 엽축 표면에 털이 없다.

18. 잎새에 인편이 없다  ····································································································· 토끼고사리속

18. 잎새에 인편이 있다.

19. 우편이 갈리는곳에 사마귀 같은 돌기가 있다  ········································································ 뿔고사리속

19. 우편이 갈리는 곳에 부속물이 없다.

20. 우편과 소우편 기부의 앞쪽이 귀같이 튀어나왔다······························································· 십자고사리속

20. 우편과 소우편 앞쪽이 튀어나오지 않았다  ·············································································· 관중속

3. 측맥은 서로 붙어 있다.

21. 잎에 뾰족한 털이 있고 포막이 있다 ····························································································· 별고사리속

21. 잎에 뾰족한 털이 없다.

22. 포자낭군은 둥글며 포막이 없다  ·································································································쇠고비속

22. 포자낭군은 길며 포막도 길다      ······························································································버들참빗속