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A taxonomic study of the genus Pseudostellaria in Korea

한국산 개별꽃속의 분류학적 연구

  • JO, Hyun (Department of Biological Sciences, Chonbuk National University) ;
  • KIM, Muyeol (Department of Biological Sciences, Chonbuk National University)
  • 조현 (전북대학교자연과학대학 생명과학과) ;
  • 김무열 (전북대학교자연과학대학 생명과학과)
  • Received : 2019.03.04
  • Accepted : 2019.06.21
  • Published : 2019.06.30

Abstract

The genus Pseudostellaria (Caryophyllaceae) in Korea was investigated in order to clarify the taxonomic positions and scientific names among the species in this genus based on morphological characteristics. P. ${\times}$ bohyeonsanensis and P. ${\times}$ seoraksanensis share several characteristics (trichome on the sepal margin and midvein, five petals, and stem reclining to the ground after flowering) with P. davidii. P. ${\times}$ bohyeonsanensis, resulting from natural hybridization of P. davidii and P. okamotoi var. longipedicellata, has sterile fruit and a long pedicel (2.2-6.0 cm). P. ${\times}$ seoraksanensis, a natural hybrid of P. davidii and P. palibiniana var. palibiniana, has sterile fruit and a short pedicel (1.1-1.8 cm). P. okamotoi var. longipedicellata shares several characteristics (long pedicels of chasmogamic flowers that elongate to the ground when bearing fruit and cleistogamic flowers with a long pedicel) with the related taxa P. okamotoi var. okamotoi. P. okamotoi var. longipedicellata has slender root tubers, glabrous pedicels, and 5-9 petals. P. palibiniana var. gageodoensis is described from Gageodo Island. It is similar to P. palibiniana var. palibiniana having chasmogamic flowers at the stem terminal, 5-7 petals, and a short pedicel, but P. palibiniana var. gageodoensis is distinguished by 1-2 rows of trichomes on the pedicel, a large sepal size, a large petal size, and a branched stem at its base. P. ${\times}$ biseulsanensis, from a natural hybrid of P. heterophylla and P. okamotoi var. longipedicellata, has a solitary aerial stem, a chasmogamic flower at the stem terminal, a shallow marginate or bitten petal apex, one row of trichomes on the pedicel, and sterile fruit. P. ${\times}$ segeolsanensis, from a natural hybrid of P. palibiniana var. palibiniana and P. okamotoi var. okamotoi, is described from Segeolsan Mt. It has numerous aerial stems, a chasmogamic flower at the stem terminal, 1-2 rows of trichomes on the pedicel, and fertile fruit. Consequently, the genus Pseudostellaria in Korea has been classified into eight species, four hybrids, two varieties, and five forms.

본 연구는 한국에 분포하는 개별꽃속의 종간 유연관계를 형태학적인 측면에서 재검토하기 위해 수행되었다. 보현개별꽃(Pseudostellaria ${\times}$ bohyeonsanensis)과 설악개별꽃(P. ${\times}$ seoraksanensis)은 꽃받침 가장자리와 중륵에 털이 있고 꽃잎은 5장이며 개화기 이후 줄기가 덩굴성으로 되는 특징을 덩굴개별꽃(P. davidii)과 공유하나, 보현개별꽃은 소화경이 길고, 설악개별꽃은 소화경의 길이가 짧아 구별되며 둘다 종자 결실을 못한다. 태백개별꽃(P. okamotoi var. longipedicellata)은 결실기 소화경의 길이와 줄기 기부까지 굽는 특징, 폐쇄 소화경의 길이가 길다는 점에서 지리산개별꽃과 유사하나 괴경이 가는 방추형이고, 소화경에 털이 없고, 꽃잎이 5-9장이라는 점에서 구별된다. 가거개별꽃(P. palibiniana var. gageodoensis)은 꽃의 수와 위치, 꽃잎의 수, 소화경의 길이 등에서 큰개별꽃과 유사하나 소화경에 1-2줄의 털이 있고, 꽃받침 길이와 너비, 꽃잎의 길이와 너비가 더 크고, 개화기에 줄기 기부에서 가지가 분지되는 특징을 보인다. 비슬개별꽃(P. ${\times}$ biseulsanensis)은 태백개별꽃과 개별꽃의 중간형으로 괴경과 연결된 지상부 개체가 하나이고 정단부에 꽃이 한개만 피며, 꽃잎은 요두 또는 결각상이며, 소화경에 1줄의 털이 있고, 종자가 결실되지 않는다. 정영개별꽃(P. ${\times}$ segeolsanensis)은 지리산개별꽃과 큰개별꽃의 중간형으로 괴경과 연결된 지상부 개체가 다수이고, 정단부에 꽃이 한개 피며, 소화경에 털이 1-2줄 있고, 종자 결실된다는 점에서 비슬개별꽃과 구별된다. 따라서 한국산 개별꽃속 식물은 이번 연구를 통해 8종 4교잡종 2변종 5품종으로 정리되었다.

Keywords

References

  1. Choi, K. 1999. Biosystematic study of Pseudostellaria Pax (Caryophyllaceae). PhD disseration, Gyeongbuk National University, Daegu, Korea. 128 pp.
  2. Choi, K. 2007. Pseudostellaria Pax. In The Genera of Vascular Plants of Korea. Park, C.-W. (ed.), Academy Publishing Co., Seoul. Pp. 317-318.
  3. Choi, K., J. S. Kim and J.-H. Pak. 2001. Natural hybridization between Pseudostellaria davidii and Pseudostellaria palibiniana (Caryophyllaceae). Plant Species Biology 16: 39-47. https://doi.org/10.1046/j.1442-1984.2001.00051.x
  4. Choi, K and J.-H. Pak. 1999. A natural hybrid between Pseudostellaria heterophylla and P. palibiniana (Caryophyllaceae). Acta Phytotaxonomica et Geobotanica 50: 161-171.
  5. Chung, T. H., B. S. To, D. B. Lee and H. J. Lee. 1937. Nomina Plantarum Koreanum. Chosen Natural History Institute, Seoul. P. 60.
  6. Jo, H. 2019. Taxonomy, ecology and conservation biology of Pseudostellaria Pax in Korea. PhD dissertation, Chonbuk National University, Jeonju, Korea, 194 pp.
  7. Jo, H., C. Shin and M. Kim. 2014. A new species of Pseudostellaria (Caryophyllaceae): P. baekdusanensis M. Kim. Korean Journal of Plant Taxonomy 44: 171-174. https://doi.org/10.11110/kjpt.2014.44.3.171
  8. Kim, M. 2017. Korean Endemic Plants. Haejin Media Co., Seoul. Pp. 120-123. (in Korean)
  9. Kim, Y.-C., H.-H. Chae, S.-H. Oh, S.-H. Choi, M.-P. Hong, G.-H. Nam, J.-Y. Choi, H.-S. Choi and K.-S. Lee. 2015. Floristic characteristics of vascular plants and first distributional report of Pseudostellaria baekdusanensis M. Kim in Yongneup wetland protected area. Korean Journal of Environment and Ecology 29: 132-144. https://doi.org/10.13047/KJEE.2015.29.2.132
  10. Lee, S. P. 2013. Endemic Species of Korea. DoHyeon, Seoul. Pp. 170-171. (in Korean)
  11. Lee, S., K.-I. Heo and S.-C. Kim. 2012. A new species of Pseudostellaria (Caryophyllaceae) from Korea. Novon 22: 25-31. https://doi.org/10.3417/2009141
  12. Lee, T. B. 1985. Illustrated Flora of Korea. Hyangmunsa, Seoul, 990 pp. (in Korean)
  13. Lee, W. C. 1996a. Coloured Standard Illustrations of Korean Plants. Academy Publishing Co., Seoul, 855 pp. (in Korean)
  14. Lee, W. C. 1996b. Lineamenta Florae Koreae. Academy Publishing Co., Seoul. P. 264. (in Korean).
  15. Lee, Y. N. 1998. Flora of Korea. Kyohak Publishing Co., Seoul, 1237 pp. (in Korean)
  16. Lu, D. and R. K. Rabeler. 2001. Pseudostellaria L. In Flora of China. Vol. VI. Wu, Z.-Y. and P. H. Raven (eds.), Science Press, Beijing and Missouri Botanical Garden Press, St. Louis, MO. Pp. 7-10.
  17. Mizushima, M. 1965. Critical studies on Japanese plants, 11: the genus Pseudostellaria Pax in Japan. Bulletin of the Botanical Survey of India 7: 62-72.
  18. Ohwi, J. 1937. A revision of the genus Pseudostellaria. Japanese Journal of Botany: Transactions and Abstracts, 9: 95-105.
  19. Park, M. K. 1974. Keys to the Herbaceous plants in Korea (Dicotyledoneae). Jeongeum, Seoul. 135 pp. (in Korean)
  20. Song, J.-H., J.-M. Kim, M.-K. Ok and S.-P. Hong. 2015. Comparative seed morphology of the tribe Alsineae (Caryophyllaceae) in Korea and its taxonomic implications. Korean Journal of Plant Taxonomy 45: 369-379. https://doi.org/10.11110/kjpt.2015.45.4.369