식물분류학회지 (Korean Journal of Plant Taxonomy)

  • 제50권4호
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  • Pages.377-384
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  • 2020
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  • 1225-8318(pISSN)
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  • 2466-1546(eISSN)
한국식물분류학회 (The Korean Society of Plant Taxonomists)
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133년만에 밝혀진 한국산 주걱잎갯비름(돌나물과)의 분류학적 실체 및 분포

The taxonomic entity and distribution of Korean Sedum formosanum (Crassulaceae) revealed in 133 years

  • 투고 : 2020.08.19
  • 심사 : 2020.12.22
  • 발행 : 2020.12.31
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초록

한국산 주걱잎갯비름(Sedum formosanum N. E. Br.)은 133년 전에 기록된 후, 이제야 이의 분류학적 실체 및 분포 현황이 밝혀졌다. 이들은 그동안 기준표본 채집지인 타이완을 비롯하여 일본의 남부, 필리핀 북부 섬지역에만 국한하여 분포하는 것으로 알려져 왔다. 그러나 이는 제4차 전국 자연환경조사를 통해 전라남도 신안군 하태도 및 상태도의 바닷가 바위 틈새에서 생육하는 것으로 확인되었다. 한국산 주걱잎갯비름은 높이 최대 65 cm에 달하는 2년생 다육식물로 결실기에 골돌과의 심피가 곧추서는 점에서 속내 대부분의 식물들과 다르다. 특히, 주걱잎갯비름은 한국산 돌나물속 중, 주걱비름과 비슷하지만 엽신이 단일형으로 엽선이 원두이며, 꽃 피는 줄기와 꽃이 없는 줄기를 따로따로 갖는 점에서 구별된다. 주걱잎갯비름에 대한 기재, 근연종과 차이점, 검색표 및 사진 등을 수록하였다.

Korean Sedum formosanum N. E. Br. (Ju-geog-nip-gaet-bi-reum in Korean) was first recorded in 1887, 133 years ago. Since then, the species has not been collected and its current state has remained unclear. However, these plants were collected in 2020 and the corresponding taxonomic entity and distribution status were revealed. It is known to be distributed only in the southern region of Japan, the northern islands of the Philippines, and in Taiwan, with Taiwan being the collection site of the type specimen. However, on the basis of the findings of the fourth national natural environment survey, it has recently been established that this plant also grows in the crevices of rocks along the seashores of the Korean islands of Hataedo Island and Sangtaedo Island, Sinan-gun, Jeollanam-do. S. formosanum inhabiting Korea is a large succulent biennial that can attain a height of up to 65 cm and differs from its congeneric species in having erect follicles during the fruiting period. Notably, among the Korean Sedum species, S. formosanum is most similar to S. tosaense, although it can be distinguished from this species with respect to its monomorphic leaves that have rounded apices, and it also bears separate flowering and sterile stems. In this paper, we present a description and photographs of the Korean S. formosanum, indicate the differences between this and related species, and provide a key to related taxa.

키워드

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