Divergence time estimation of an ancient relict genus Mankyua (Ophioglossaceae) on the young volcanic Jejudo Island in Korea

길희영,김승철 한국식물분류학회 2018 식물 분류학회지 Vol.48 No.1

Mankyua chejuense is the only member of the monotypic genus Mankyua (Ophioglossaceae) and is endemic to Jejudo Island, Korea. To determine the precise phylogenetic position of M. chejuense, two cpDNA regions of 42 accessions representing major members of lycophytes are obtained from GenBank and analyzed using three phylogenetic analyses (maximum parsimony, maximum likelihood, and Bayesian inference). In addition, the divergence time is estimated based on a relaxed molecular clock using four fossil calibration points. The phylogenetic position of Mankyua still appears to be uncertain, representing either the earliest diverged lineage within Ophioglossaceae or a sister to the clade containing Ophioglossum and Helminthostachys. The most recent common ancestor of Ophioglossaceae and its sister lineage, Psilotum, was estimated to be 256 Ma, while the earliest divergence of Mankyua was estimated to be 195 Ma in the early Jurassic.

Sparganium glomeratum (Typhaceae): A new record from South Korea

길희영,이강협,하영호,장창석,김동갑 한국식물분류학회 2019 식물 분류학회지 Vol.49 No.4

In this study, we report a new record of the clustered bur-reed Sparganium glomeratum (Laest. ex Beurl.) Beurl., from Yongneup Moor of Daeamsan Mt. in Gangwon-do, Korea. This species is distributed in the cool temperate and circumboreal regions of the Northern Hemisphere. As we recorded this species in a high-altitude wetland, we named it “Du-me-heuk-sam-neung” after the Korean word that translates to “Sparganium found in deep mountains.” We provide descriptions of the morphological characteristics, photographs, and detailed illustrations of S. glomeratum, as well as a key to allied taxa in Korea.

회화나무 녹병균(Uromyces truncicola)의 형태적 특징과 감염 기주의 조직해부학적 변화

길희영 ( Hee Young Gil ),구창덕 ( Chang Duck Koo ) 한국산림과학회 2010 한국산림과학회지 Vol.99 No.3

Using morphometrics to unravel species relationships and delimitations in Sorbus pohuashanensis in the Korean peninsula

박수경,길희영,김휘,장진성 한국식물분류학회 2013 식물 분류학회지 Vol.43 No.4

Subalpine species, Sorbus pohuashanensis in the Korean peninsula, which is assumed to be evolved from hybridization between S. commixta and an unknown species based on the flavonoids data. Morphometric analysis was conducted on the basis of 19 leaf and flower (or fruit) characters. A total of 721 samples in 13 populations of Sorbus pohuashanensis and S. commixta from Korea and additional specimens of S. commixta, S. pohuashanensis, and S. wilsoniana from Japan and China were examined to reveal the hybridization patterns and morphological differences. We found a preliminary evidence where Korean mountain rowan is more related to a Chinese inland taxon, S. wilsoniana, rather than Northeastern Chinese S. pohuashanensis in terms of flavonoids. The current morphological structure of the Korean mountaion rowan, however, which is more similar to S. commixta, was neither associated with that of S. wilsoniana nor that of S. pohuashanensis. This indicates that this morphological variation represents an intermediate of S. commixta and S. wilsoniana via a more ancient hybridization event in terms of qualitative characters, such as stipules, buds, and carpels. These morphometric differences together with other distinguishing characteristics suggest that the Korean mountain rowan should be considered as a conspecific species of S. commixta, although this demonstration of hybridization with the current phenetic species concept contradicts longstanding historical species concept.

학술연구논문 구두발표 2 : 일차종발생자료를 이용한 나자식물 다양성 -1945년 이전 수집 식물표본자료를 중심으로-

박수경,길희영,장진성,김휘 한국임학회 2013 산림과학 공동학술대회 논문집 Vol.2013 No.-

Notes on Sparganium coreanum (Typhaceae) rediscovered on the Korean Peninsula

하용하,길희영,이정심,이강협,이동혁,손동찬,장계선 한국식물분류학회 2019 식물 분류학회지 Vol.49 No.3

Sparganium coreanum, a barely recognized species in Korea, was rediscovered during a field survey by the authors, who conducted a re-examination of specimens deposited in the Herbarium of the Korea National Arboretum (KH). This species was described initially by H. Léveillé from a specimen collected by F. Taquet from Jeju-do (Taquet 2150). Subsequently, however, it was overlooked and unrecognized among South Korean flora. Several populations of S. coreanum were found in the southern part of the Korean Peninsula and on Jeju-do, although it has long been recognized as S. erectum owing to certain vegetative morphological characteristics shared between the two species, such as robust stems, a similar plant height, and globose rhizomes. However, it is distinct from S. erectum by the number of female heads on the lowest inflorescence branch and the size and shape of the fruit. In this study, we provide a detailed descrip- tion, illustrations, and photographs with a revised taxonomic key for identification of Sparganium species in Korea.

환경부 고유종 목록과 산림청 수목원 조성 및 진흥에 관한 법률의 특산식물 비교 검토

김휘,길희영,박수경,장진성 한국산림과학회 2012 한국임학회 학술발표논문집 Vol.2012 No.-

일차종발생자료를 이용한 나자식물 다양성

박수경,길희영,장진성,김휘 한국산림휴양복지학회 2013 한국산림휴양학회 학술발표회 자료집 Vol.2013 No.4

T. Mori의 한반도 채집지역 및 채집품

김휘,장계선,길희영,박수경,장진성 한국식물분류학회 2012 식물 분류학회지 Vol.42 No.4

Records found on labels of specimens deposited at University of Tokyo herbarium (TI) and references about Japanese naturalist, Tamezo Mori (1884-1964) were assembled to produce collector’s itineraries from 1909 to 1916 in Korea. Mori collected large numbers of botanical specimens from different parts of the country. In August 1911 and 1912, Mori conducted botanical collections in Jeju and southern parts of Korean Peninsula. In 1913 major collections in North Korea by Mori took place in Mt. Baekdusan, Hamkyongnam-do. Following this exploration, in August 1916 Mori conducted another major collections in Pyeongannam-do and Hamgyeongnam-do. It is estimated that approximately 966 Korean specimens collected by Mori are currently held within the collections of The University of Tokyo herbarium (TI). Significantly these holdings also contain 46 type specimens (11 holotypes, 23 syntypes and 12 paratypes) 일본 박물학자, Tamezo Mori(1884-1964)는 1909년부터 1916년까지 약 8년간 한반도의 식물 채집을 시도하였다. Mori의 한반도 관련 문헌 및 표본레이블에 기록된 내용을 바탕으로 채집행적을 정리하였다. 서울과 경기도 채집이외 주요 채집은 1911년 8월 제주도, 1912년 제주도와 경상남도, 전라남도 남부지역, 1913년 백두산과 함경북도 지역, 1916년 낭림산과 평안남도 채집이 대표적이다. 문헌에 기록된 지명은 전체 31개이다. 채집품은 동경대학(TI)에 소장된 966개가 확인되며 이중 11개가 holotype, 23개가 syntype, 12개가 paratype이다.

경기도 파주시 박달산·명봉산의 관속식물상

송진헌,변경열,길희영,장계선 한국환경생태학회 2023 한국환경생태학회지 Vol.37 No.1

In this study, we conducted a flora survey at Mt.Bakdal (363m) and Mt. Myeongbong (245.3m) in Paju-si, Gyeonggi-do. A total of 405 taxa, including 2 forms, 32 varieties, 8 subspecies, 363 species, 261 genera, and 87 families, were surveyed in the two mountain areas. The ferns were identified as 12 taxa from 6 families, the gymnosperms as 6 taxa from 2 families, the dicotyledonous plants as 290 taxa from 70 families, and the monocotyledonous plants as 97 taxa from 9 families. The remarkable plants included 8 taxa of the Korean endemic plants, which were Populus tomentiglandulosa, Salix koriyanagi, Clematis brachyura, Viola seoulensis, Forsythia koreana, Paulownia coreana, Weigela subsessilis, and Hemerocallis hakuunensis, and 3 taxa of the rare and endangered plants as designated by the Korea Forest Service, including Tylophora floribunda as Vulnerable (VU) species, and Viola albida and Chionanthus retusus as Least Concern (LC) species. The invasive alien plants were 35 taxa, including Rumex crispus, Phytolacca americana, Cerastium glomeratum, Chenopodium album, Chenopodium ficifolium, Lepidium virginicum, Amorpha fruticosa, Robinia pseudoacacia, and Trifolium repens, accounting for 8.5 percent of the 405 taxa of the surveyed plants. We intend to further identify plants through the studies on unsurveyed areas in the western part of the DMZ, identify the native habitats of rare and specialty plants, and use them as basic data for managing ecosystem-disturbing plants. 본 연구에서는 경기도 파주시에 위치한 박달산(363m), 명봉산(245.3m) 지역을 중심으로 식물상 조사를 실시하였다. 2개 산지 식물상 조사 결과, 87과 261속 363종 8아종 32변종 2품종으로 총 405분류군의 관속식물이 조사되었다. 분류군별로는 양치식물이 6과 12분류군, 나자식물이 2과 6분류군, 쌍자엽식물이 70과 290분류군, 단자엽식물이 9과 97분류군으로 확인되었다. 주요 식물은 특산식물 은사시나무, 키버들, 외대으아리, 서울제비꽃, 개나리, 오동나무, 병꽃나무, 백운산원추리 8분류군, 산림청 지정 희귀식물은 3분류군으로 취약종(VU) 왜박주가리, 약관심종(LC) 태백제비꽃, 이팝나무가 확인되었다. 침입외래식물은 소리쟁이, 미국자리공, 유럽점나도나물, 흰명아주, 좀명아주, 콩다닥냉이, 족제비싸리, 아까시나무, 토끼풀 등 총 35분류군으로 조사되어, 조사식물 405분류군의 8.5%를 차지하였다. 따라서 DMZ 서부 미조사 지역의 연구를 통하여 식물들을 규명하고, 희귀식물, 특산식물의 자생지 확인 및 생태계 교란 식물에 대한 관리방안에 기초적인 자료로 활용하고자 한다.