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2019 Vol.32, Issue 4 Preview Page

Research Article

Taxonomy of Korean Asarum (Aristolochiaceae) by the Morphological Characters

한국산 족도리풀속(Asarum)의 외부형태학적 형질에 의한 분류

Hyosun Leem1
,
Byoung-Un Oh2*
임 효선1
,
오 병운2*
1Researcher, Division of Ecological Survey Research, National Institute of Ecology, Seocheon 33657, Korea
2Professor, School of Biological Sciences, Chungbuk National University, Cheongju 28644, Korea
1국립생태원 생태조사연구실, 연구원
2충북대학교 생명과학부, 교수
* Corresponding Author
31 August 2019. pp. 344-354
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Abstract

In seven species of Korean Asarum, 44 qualitative and 28 quantitative characters were reviewed taxonomically. Among 44 qualitative characters observed in vegetative and reproductive organs, the states of 27 characters were common in all the seven species. Among 28 quantitative characters, five characters have the same values in all the seven species; the number of cataphyll (2-4), leaf (2), calyx lobe (5), stamen (12) and pistil (6). White spots on adaxial surface of leaf (effectively) distinguished A. maculatum and A. versicolor from the other species. Many long soft hairs on abaxial surface of leaf distinguished A. mandshuricum from other species with short hairs. The glandular hairs on inner surface of calyx tube were divided into 2 types, reflecting the taxonomic relationships between the species: Type 1 has non-stalked glandular hairs (A. maculatum, A. sieboldii and A. sp.), and Type 2 has stalked glandular hairs (A. patens, A. versicolor, A. mandshuricum and A. misandrum). The length, shape, colour of calyx lobe and the extent to which the calyx lobe recurves, as well as the diameter and colour of calyx tube throat, were confirmed to be taxonomically valuable. In the case of glandular hair density on the surface of calyx lobe, A. patens with low density and A. sp. with high density were clearly distinct from all the other species with intermediate hair density. Meanwhile, the stylar protuberance length of A. patens (2.9-3.3 ㎜) was strikingly different from other species (1.4-2.5 ㎜). Additionally, further examination of the identities of A. yeonbyeonense and A. yeonbyeonense var. viridiluteolum is required.

Keywords
Aristolochiaceae
Asarum
Morphological character
Relationships
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Information
  • Publisher :The Plant Resources Society of Korea
  • Publisher(Ko) :한국자원식물학회
  • Journal Title :Korean Journal of Plant Resources
  • Journal Title(Ko) :한국자원식물학회지
  • Volume : 32
  • No :4
  • Pages :344-354
  • Received Date : 2019-05-14
  • Revised Date : 2019-06-11
  • Accepted Date : 2019-06-12
  • DOI :https://doi.org/10.7732/kjpr.2019.32.4.344
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