Korean Journal of Plant Taxonomy (식물분류학회지)

The Korean Society of Plant Taxonomists (한국식물분류학회)
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A new species of Fimbristylis (Cyperaceae): F. drizae J. Kim & M. Kim

하늘지기속(사초과)의 신종: 물하늘지기(Fimbristylis drizae J. Kim & M. Kim)

  • Kim, Jonghwan (Department of Biological Sciences, Chonbuk National University) ;
  • Kim, Muyeol (Department of Biological Sciences, Chonbuk National University)
  • 김종환 (전북대학교 자연과학대학 생명과학과) ;
  • 김무열 (전북대학교 자연과학대학 생명과학과)
  • Received : 2015.01.09
  • Accepted : 2015.02.16
  • Published : 2015.03.31
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Abstract

A new species, Fimbristylis drizae J. Kim & M. Kim, is named and described from Sucheong Lake, Jeongeup-si, Jeollabuk-do, Korea. Fimbristylis drizae shares several characters (five-angled culm, 1-2 bladeless sheath, and compound anthela inflorescence) with the related species F. diphylloides Makino. It is, however, distinct from F. diphylloides, which has two to three stigmas, ovate spikelets, two stamens, a blackish brown scale, and a roadside habitat. In contrast, the new species has two stigmas, oval spikelets, one (or rarely two) stamens, a yellowish brown scale, and a lakeside habitat.

사초과의 하늘지기속 신종인 물하늘지기(Fimbristylis drizae J. Kim & M. Kim)를 전라북도 정읍시 수청저수지에서 발견하여 기재하였다. 물하늘지기는 줄기는 5각형이고 1-2개의 기부 경생엽이 엽신이 없는 엽초만 있으며 화서는 소수화서를 가진 점에서 검정하늘지기(F. diphylloides Makino)와 유사하다. 그러나 물하늘지기는 주두가 2개이고, 소수가 타원형이며, 수술이 1개(드물게 2개)이고, 인편이 황갈색이며 저수지 가장자리에서 자라는 특징을 가지고 있다. 반면에 검정하늘지기는 주두가 2개 또는 3개이고, 소수가 난형이며, 수술이 2개이고, 인편이 흑갈색이며 임도변의 습한 곳에서 자라는 점에서 구별된다.

Keywords

References

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