# 이끼

| **이끼** |
| --- |
|  에른스트 헤켈의 *Kunstformen der Natur*, 1904 |
| **생물 분류**ℹ️ |
| 계: | 식물계 |
| 상문: | 선태식물상문 |
| 문: | **선태식물문** (Bryophyta) |
| **강** |
| * 본문 참조

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**이끼**는 **이끼류**(-類) 또는 **선류**(蘚類)에 속하는 작고 부드러운 식물이다. 크기는 보통 1 ~ 10 cm 정도 되지만, 훨씬 큰 것도 있다. 이들은 보통 축축하고 그늘진 곳에 엉켜 집단을 이루어 자란다. 이들은 꽃이나 씨앗을 갖지 않으며, 단순한 잎이 가는 줄기를 덮는다. 때에 따라서는 포자낭을 만들기도 한다.

지구 상에는 약 12,000 종의 선태식물류 식물이 있다.

이끼는 우주공간에서도 생존할 수 있는 강한 생명력을 가진 것으로 알려져 있다.

## 하위 분류

* 타카키아강 (Takakiopsida)
* 물이끼강 (Sphagnopsida)
* 검정이끼강 (Andreaeopsida)
* 안드레아에오브리움강 (Andreaeobryopsida)
* 옥구슬이끼강 (Oedipodiopsida)
* 네삭치이끼강 (Tetraphidopsida)
* 솔이끼강 (Polytrichopsida)
* 선태식물강 (Bryopsida)

## 계통 분류

다음은 유배식물의 계통 분류이다.

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| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 유배식물 |

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 선태식물 |

|  |  |
| --- | --- |
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뿔이끼문 |
|  |
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| --- | --- |
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선태식물문 |
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우산이끼문 |
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| 다포자낭식물 |

|  |  |
| --- | --- |
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?† Taeniocradales |
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† 호르네오피톤강 |
|  |
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|  |  |
| --- | --- |
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† *Aglaophyton* |
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| 관다발식물 |

|  |  |
| --- | --- |
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?† Yarraviales |
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† Rhyniopsida |
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| Eutracheophytes |

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| --- | --- |
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?† Cooksoniales |
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?† Renaliaceae |
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석송문 |
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| 진엽식물 |

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| --- | --- |
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† Eophyllophyton |
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† Trimerophytopsida |
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| --- | --- |
| Moniliformopses |
양치류 |
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| Radiatopses |

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| --- | --- |
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† *Pertica* |
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| 목질식물 |

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| --- | --- |
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?† Cecropsidales |
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?† Noeggerathiopsida |
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† Aneurophytopsida |
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| Metalignophytes |

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| --- | --- |
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† 고양치류 |
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| --- | --- |
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† Protopityales |
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종자식물 |
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이끼류의 계통 분류는 다음과 같다.

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 선태식물문 |

|  |  |
| --- | --- |
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타카키아강 |
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물이끼강 |
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|  |

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|  |

|  |  |
| --- | --- |
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검정이끼강 |
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안드레아에오브리움강 |
|  |
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|  |  |
| --- | --- |
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옥구슬이끼강 |
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|  |  |
| --- | --- |
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네삭치이끼강 |
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솔이끼강 |
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선태식물강 |
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* 위키미디어 공용에 이끼 관련 미디어 분류가 있습니다.
* 위키생물종에 선태식물문 관련 자료가 있습니다.