2) 애기무엽란족 Neottiae

1. 잎은 비늘같이 생기고 엽록체가 없다.

2. 가지가 갈라지며 열매는 붉게 익고 벌어지지 않는다     ·········································································698. 으름난초

2. 가지가 없으며 열매는 벌어지고 붉어지지 않는다

3. 꽃받침잎은 통처럼 되고 뿌리는 감자처럼 굵어진다   ··············································································702. 천마

3. 꽃받침 잎은 붙지 않았다.

4. 꽃에 거가 있다   ····················································································································708. 유령란

4. 꽃에 거가 없다.

5. 씨방 끝에 덧꽃받침이 있다   ···································································································701. 무엽란

5. 씨방 끝에 덧꽃받침이 없다.

6. 지하경은 짧고 많은 뿌리가 총생한다  ···················································································애기무엽란속

6. 지하경은 끈같이 길게 자란다 ····························································································714. 애기천마

1. 초록색 잎이 있다.

7. 꽃은 줄기 끝에 1 개 달린다 ·············································································································· 방울새난속

7. 꽃은 2개 이상 총상으로 달린다.

8 잎은 줄기 중간에 2개가 대생한다 ···································································································쌍잎난초속

8. 잎은 호생한다.

9. 꽃은 꽃차례 한쪽에 달리며 꼬이고 잎은 근생한다    ·······································································709. 타래난초

9. 꽃차례는 꼬이지 않고 잎은 호생한다.

10. 잎은 맥에 따라 주름이 있다

11. 꽃에 거가 없으며 화피 열편은 비스듬히 퍼진다  ········································································닭의난초속

11. 꽃에 거가 있으며 꽃받침잎은 벌어지지 않는다  ································································금난초속(은난초속)

10. 잎에는 주름이 없다.

              12. 순판에는 거가 있다  ········································································································721. 백운란

12. 순판에 거가 없다.

13. 잎은 길이 4~12mm이고 너비 3-8mm이다   ········································································722. 개미난초

13. 잎은 앞보다 훨씬 크다      ···································································································사철란속