Korean Journal of Plant Taxonomy (식물분류학회지)

The Korean Society of Plant Taxonomists (한국식물분류학회)
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Fruit and seed morphology of Korean Ranunculaceae

한국산 미나리아재비과의 열매 및 종자 형태

  • 정우철 (춘천 Jade Botanical Garden) ;
  • 허권 (강원대학교 생물자원과학부)
  • Received : 2017.01.05
  • Accepted : 2017.05.24
  • Published : 2017.06.30
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Abstract

Fruit and seed morphological characteristics were investigated in 36 taxa of 20 genera of Korean Ranunculaceae. As a result, fruits were classified as the achene, berry, or follicle type. In the taxa with achene, the presence of trichomes and stoma on the surface of the fruit and a feature in which the endocarp distinctively develops into a one-layer sclereid were considered as useful characteristics. Moreover, in the taxa with follicles, the composition of the seed coat (bitegmic vs. unitegmic), the cell shape of the seed coat, the presence of trichomes, and the type of seed coat were useful for taxonomic characteristics in Korean Ranunculaceae. Based on the fruit and seed characteristics, Adonis is likely to be classified into Helleboroideae rather than Ranunculoideae, as it has bitegmic ovules. In addition, Enemion is similar to Eranthis in unitegmic ovule and the seed coat structure which has non-sclereid exotesta; therefore, it is reasonable to be placed in Helleboroideae. According to the results of this study, more in-depth research is needed regarding the taxonomic positions of Callianthemum and Actaea, which has the only berry fruit type.

한국산 미나리아재비과 20속 36종에 대하여 열매 및 종자 형태를 조사하였다. 그 결과, 먼저 열매는 수과(achene)와 장과(berry) 및 골돌과(follicle)로 분류되었고, 수과를 갖는 분류군에서는 과피 표면에 모용(trichome)의 발달유무, 기공(stoma)의 존재여부, 그리고 과피 해부형태에서는 내과피가 한 층의 후벽세포로 뚜렷하게 발달하는 특징이 식별 유용형질로 판단되었다. 그리고 골돌과를 갖는 분류군은 종피의 구성(양주피 vs. 단주피), 종피 표면의 형태, 모용의 발달 유무, 종피 type 등이 분류형질로 유용한 것으로 판단되었다. 조사된 열매 및 종자 형질에 기초하여, 복수초속(Adonis)은 양주피성 배주를 가지므로 단주피성 배주 유집군인 미나리아재비아과(Ranunculoideae)에서 Helleboroideae아과로 분류되어야 할 것 같다. 또한 나도바람꽃속(Enemion)의 나도바람꽃은 단주피성 배주와 종피구조(non-sclereid exotesta) 형질에서 만주바람꽃이나 매발톱꽃, 개구리발톱과는 다른 너도바람꽃속(Eranthis)과 유사하여 Helleboroideae아과로 분류하는 것이 타당할 것으로 생각된다. 연구결과, 매화바람꽃속(Callianthemum)과 유일한 장과 속인 노루삼속(Actaea)의 분류학적 위치에 대하여 좀 더 정확한 연구가 필요할 것으로 생각된다.

Keywords

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