Korean Journal of Plant Taxonomy (식물분류학회지)

The Korean Society of Plant Taxonomists (한국식물분류학회)
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Systematic application of seed morphology In Korean Orobanchaceae

한국산 열당과 종자 형태의 분류학적 적용

  • An, Beom-Cheol (Kyung Hee University Museum of Natural History) ;
  • Hong, Suk-Pyo (Lab. of Plant Systematics, Dept. of Biology & Institute of Basic Science, Kyung Hee University)
  • 안범철 (경희대학교 자연사박물관) ;
  • 홍석표 (경희대학교 생물학과 식물분류학연구실 & 기초과학연구소)
  • Received : 2003.10.24
  • Accepted : 2003.11.09
  • Published : 2003.12.31
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Abstract

To examine the seed morphology in Korean Orobanchaceae, seeds of 5 species including 1 variety in five genera and one related taxon, Boschniakia himalaica Hook. f. & Thomson in Hook. f. from the Himalaya (7 taxa in total) were investigated by scanning electron microscopy (SEM). Two different seed types are recognized depending on three characters (e.g, .the seed size, seed coat structure and seed number per fruit). - Type I: size less than 1mm, seed coat structure reticulate and seed number per fruit more than ca. 1,000; Type II: size more than 1 mm, exotesta irregularly crested and seed number per fruit less than 1,000 (Lathraea japonicu Miq.). In Type I, three subtypes of exotesta internal surface pattern can also be classified; (1) Subtype Ia: reticulate - include irregularly striate (Ia') and deeply reticulate (Ia"), (2) Subtype Ib: foveolate, (3) Subtype Ic: smooth. Systematics application of the seed morphological data for the Korean Orobanchaceae is also briefly discussed.

한국산 열당과의 종자형태를 조사하기 위하여 5속 5종 1 변종과 히말라야의 Boschniakia himalaica Hook. f. & Thomson in Hook. f.(총 7 분류군)의 종자를 주사전자현미경을 이용하여 관찰하였다. 한국산 열당과는 종자 크기, 종피의 구조, 과실 당 종자의 수에 따라 두 가지 유형이 구별 되었다. - Type I: 크기가 1mm 미만, 종피 구조는 망상, 과실 당 종자의 개수는 약 1,000개 이상. Type I은 외종피의 내부 표면 무늬에 따라 세 가지 하위구분으로 나뒤어 질 수 있다; (1) Subtype Ia: 망상 -불규칙한 줄무늬형(Ia')과 깊은 망상(Ia")을 포함한다. (2) Subtype Ib: 유공상, (3) Subtype Ic: 평활상. Type II: 크기가 1mm 이상, 종피구조는 불규칙하게 돌출된 모양(creasted), 과실 당 종자의 개수는 약 1,000개 미만(Lathraea japonica Miq.). 한국산 열당과에 대한 종자 형질의 분류학적 적용에 관하여 간략하게 검토하였다.

Keywords

References

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