한국산 하늘지기속(사초과)의 분류학적 연구

다국어 초록 (Multilingual Abstract)

A morphological study was conducted of the Korean Fimbristylis in order to clarify the taxonomical position and scientific naming among species. It was determined that anther size and style length are important characteristics for the species-level identification of Fimbristylis.
Fimbristylis longispica, F. sericea, and F. stauntonii were positioned as separate taxa, without controversy. An urgent conservational strategy is required as all of these species are sparsely distributed and their natural habitats are under threat from human pressure.
Fimbristylis dipsacea var. verrucifera and F. complanata var. exaltata varied only slightly from typical species, whereas F. sieboldii clearly differed from the tropical species F. ferrugineae with respect to the style length and stamen size. Thus F. sieboldii is clearly an independent species.
There has long been confusion between F. littoralis and F. miliacea due to two different specimen types. We concur with Strong(2004), that F. littoralis is the legitimate name.
Although F. diphylloides and F. drizae show similarity in their appearance, F. diphylloides has leaves that are shorter than its' stem and relatively short style. In comparison, F. drizae has leaves longer than the stem and longer style. These differences have led to the conclusion that they are independent species.
F. pierotii and F. jindoensis are similar in having a long creeping rhizome, but F. pierotii has simple inflorescence, whereas F. jindoensis has compound inflorescence.
F. complanata var. exaltata resembles F. jindoensis, having similar inflorescence, but F. jindoensis has a long creeping rhizome and solitary culm, while F. complanata var. exaltata is distinguished by its' very short rhizome and tufted culm. Furthermore, the characteristics of F. jindoensis lie between F. pierotii and F. complanata var. exaltata in anther size and flowering period. Therefore these three taxa are treated as independent species.
F. tomentosa has 11-20 longitudinal rows and F. dichotoma var. dichotoma has 7-10 longitudinal rows in the surface achene patterns. In addition, two species have different anther size. Therefore these taxa is treated as different species.

According to this study, Korean Fimbristylis is classified into a total of 20 taxa, including sixteen species and four varieties.

목차 (Table of Contents)

• Ⅰ. 서론 1
• Ⅱ. 재료 및 방법 10
• 1. 재료 10
• 2. 방법 21
• Ⅲ. 결과 26
• 1. 생태학적 연구 26
• 2. 형태학적 연구 31
• 3. 하늘지기속의 기재 76
• 4. 하늘지기속 절 검색표 77
• 5. 한국산 하늘지기속(Fimbristylis)의 종 검색표 78
• 6. 분류군의 기재 81
• Ⅳ. 고찰 142
• Ⅴ. 요약 148
• Ⅵ. 참고문헌 150