주목과 Taxaceae

1. 종의가 종자의 일부를 둘러싼다.

2. 곧게 자라는 큰 나무이다.

3. 잎의 너비는 2.5mm 내외로서 보통 3mm 이하이다    ··········································································· 227. 주목

3. 잎의 너비는 3-4.5mm 이다    ······························································································· 227+. 회솔나무

2. 비스듬히 자라는 관목형이다.

4. 밑에서 가지가 많이 돋아서 둥근향나무 같은 형태로 자란다   ··························································· 227+++.눈주목

4. 비스듬히 자라는 관목형이다   ··························································································· 227++. 설악눈주목

1. 종의가 종자를 완전히 둘러싼다.

5. 잎의 주맥은 뒷면에만 도드라진다   ······························································································· 228. 비자나무

5. 잎의 주맥은 앞뒷면에서 모두 도드라진다   ····················································································229. 개비자나무