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한국산 골풀속의 해부학적 형질에 의한 분류학적 연구

A taxonomic study of Korean Juncus based on the anatomical characters

  • 투고 : 2016.10.18
  • 심사 : 2016.12.12
  • 발행 : 2016.12.30

초록

한국산 골풀속 19 분류군에 대하여 해부학적 형질의 유용성을 검토하고자 연구를 수행하였다. 줄기, 잎, 삭과 등을 횡단하여 관찰하였으며, 주요 형질을 도해하고, 기재하였다. 또한 해부학적 형질에 근거한 검색표를 작성하였고, 분류군간 차이점을 표로 제시하였다. 연구 결과, 줄기의 유관속, 섬유, 기도의 배열양상과 잎의 형태, 유관속 및 유조직의 배열양상, 삭과에서 태좌의 발달정도 등의 형질들이 골풀속 식물의 분류에 매우 유용한 것으로 확인되었다. 그러나 일부 분류군에서는 근연 분류군과의 분류형질로 유용한 것으로 밝혀졌지만, 종 수준보다는 절 또는 아속 수준의 분류에 더 유용한 것으로 확인되었다. 따라서 해부학적 형질은 다른 외부형태학적 형질과 더불어 보다 자연적인 분류체계 설정에 기여할 수 있을 것이라 판단되었다.

The anatomical characters of the 19 taxa of Korean Juncus were reviewed in order to examine their significance in taxonomy. Cross-section analyses were conducted on the stem, leaf, and capsule. Descriptions, line drawings, tables, and a species key of Korean Juncus are provided for species identification based on anatomical characters. The results of this study showed that the arrangements of the vascular bundle, fiber, and air-space structure in the stems as well as the arrangements of the vascular bundle and parenchyma in the leaves and the development of placenta in capsules are the key characters to be used when classifying each species of Juncus. It was revealed that the studied anatomical features were more useful for identification at the subgenera and section levels than at the species level. Therefore, these anatomical characters used in conjunction with external morphological features will make a valuable contribution to establishing a natural classification system for Juncus.

키워드

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