• Title/Summary/Keyword: taxonomic examination

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Lectotypification of Anaphalis morii Nakai (Asteraceae) with Brief Discussions of its Taxonomic Entity

  • Dong Hyuk Lee;Jun Gi Byeon;Tae Im Heo;Byeong Joo Park;Ji Dong Kim;Jun Woo Lee;Byeong Kwon Lee;Byeong-Hee Choi
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2020.08a
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    • pp.16-16
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    • 2020
  • Systematic studies for genus Anaphalis in Koreaare relatively scarce. As a fundamental step to further taxonomic studies of this genus, we here propose lectotype for A. morii, endemic taxa in Korea with a brief re-evaluation of its taxonomic entity. During the examination of herbarium specimen for A. morii, we found nine sheets of five collections in three herbaria. Among the original materials, we selected a specimen in TI which was first cited by the author and include an additional annotation, matching with his own description. Also, we were able to determine the taxonomic relationships between A. morii and its relatives, A. yakusimensis. Based on our observation, we identified that several morphological characters are clearly differ from A. yakusimensis occurring only Isl. Yakushima in Japan.

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Analysis of the Shoulder and Elbow Section of the Korean Orthopedic In-training Examination

  • Kim, Joon Yub;Jung, Myung Gon;Kwon, Ki Bum;Chung, Seok Won
    • Clinics in Shoulder and Elbow
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    • v.19 no.2
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    • pp.67-72
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    • 2016
  • Background: The aim of this study was to analyze the questions in the shoulder and elbow section of the Korean Orthopaedic In-Training Examination (KOITE) and compare them with those of the US Orthopaedic In-Training Examination (US OITE). Methods: Twenty-nine questions in the shoulder and elbow section of the KOITE from 2010 to 2014 were analyzed and compared with those of the US OITE (80 questions) by literature review. A thorough analysis of the contents was performed after categorizing as topics, diagnostic tools, treatment modalities, taxonomic classification, and references. Results: The shoulder and elbow section of the KOITE was 5.8% weight which was similar to the US OITE (5.9%). The most commonly appearing topic was anterior labral injury (17.2%) on the KOITE compared to instability and arthritis (21.3%, each) on the US OITE. Magnetic resonance imaging was most frequently appeared imaging modality on the KOITE (41.0%) compared to the radiograph on the US OITE (43.0%). The Latarjet procedure was the most commonly asked treatment modality (22.2%) on the KOITE, whereas arthroplasty (33.3%) on the US OITE. The KOITE showed an even taxonomic classification distribution compared to the US OITE. Campbell's operative orthopaedics covered 96.6% questions as a reference on the KOITE compared to the Journal of Bone and Joint Surgery, American Volume on the US OITE, which covered 45.0%. Conclusions: This specific analysis shows us current trends of the shoulder and elbow section of the KOITE and it might be developed for use in the educational curricula for the trainee.

Morphological Characteristics, Distribution and Taxonomic Consideration of the Arnebia euchroma and A. guttata (신강자초(新疆紫草)와 내몽자초(內蒙紫草)의 형태, 분포 및 분류학적 검토)

  • Song, Jun-Ho;Choi, Goya;Yang, Sungyu;Moon, Byeong Cheol
    • The Korea Journal of Herbology
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    • v.34 no.6
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    • pp.63-70
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    • 2019
  • Objective : Arnebiae Radix, the roots of Arnebia euchroma (Royle) Johnst. or A. guttata Bunge, is a well-known traditional herbal medicine in East Asia. In the Korean Pharmacopoeia, three authentic species, including two Arnebia and Lithospermum erythrorhizon Sieb. et Zucc. have recognized as a Lithospermi Radix. But, the morphological and taxonomic information of two authentic Arnebia species lacks date since their distribution and difficulty of accessing the natural habitats. Methods : A full description of the external morphological characteristics of vegetative and reproductive organs in the original plants was carried out using digital calipers and stereoscope. For providing their taxonomic and nomenclatural synonyms, we reviewed various plant checklists and taxonomic literature. Results : This study provides taxonomic information of A. euchroma and A. guttata based on a morphological examination of authentic plant individuals and field observations. Detailed descriptions of the two Arnebia species, major quantitative and qualitative characteristics, nomenclatural reviews, distribution maps, and lists of voucher specimens examined are provided. The shape of leaves, root length, stem number, calyx length and pubescence as well as corolla color were useful characteristics for identification. Moreover, we confirmed that A. euchroma and A. guttata are clearly heterostylous species. Conclusion : Our research provides valuable basic information that could be used as quality control for distinguishing between Arnebiae Radix and its adulterants. These results will help in the understanding of authentic plants and also provide the verified materials and voucher information.

Morphological Description, DNA Barcoding, and Taxonomic Review of Five Nudibranch Species (Gastropoda) from South Korea

  • Jina Park;Damin Lee;Eggy Triana Putri;Haelim Kil;Joong-Ki Park
    • Animal Systematics, Evolution and Diversity
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    • v.39 no.3
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    • pp.99-113
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    • 2023
  • The nudibranch is one of the most colorful gastropod species found in oceans worldwide. Unlike many other gastropod groups, the nudibranch loses an external shell in the adult stage, but instead develops various chemical defense systems. More than 2,500 nudibranch species have been reported worldwide, and 73 species are currently recorded in Korean waters. In this study, we present morphological descriptions, DNA barcode information of mtDNA cox1 sequence, and taxonomic review for five nudibranch species: Apata pricei (MacFarland, 1966), Doto rosacea Baba, 1949, Janolus toyamensis Baba and Abe, 1970, Polycera abei (Baba, 1960), and Trinchesia sibogae (Bergh, 1905). Of these, we also provide in-depth discussion of taxonomic issue of A. pricei that was previously subdivided into two subspecies, A. pricei pricei and A. pricei komandorica. Our morphological examination and molecular analyses of the mtDNA cox1 sequences indicate that these two subspecies are not taxonomically warranted. The phylogenetic information for the other nudibranch species from mtDNA cox1 sequence analysis is also included, providing a molecular basis for species identification and inferring their local phylogenies within each of the species groups discussed herein.

Taxonomic re-examination of a carpet-like Codium (Chlorophyta) from Jeju, Korea

  • Lee, Hyung-Woo;Kim, Myung-Sook
    • ALGAE
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    • v.26 no.3
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    • pp.221-227
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    • 2011
  • There are three carpet-like Codium species with a broadly expanded thallus reported from Korea and Japan: C. latum Suringar, C. tapetum Y. Lee, and C. tenuifolium Shimada, Tadano and J. Tanaka. During surveys of green algal diversity, we encountered a Codium species with carpet-like thalli from several sites on Jeju Island. To confirm the taxonomic identity of these specimens, we studied the morphological features and obtained rbcL gene sequences. The morphological and sequence data indicated that the carpet-like Codium specimens from Jeju are C. tenuifolium from Japan, but distant from Japanese C. latum. We propose that the carpet-like specimens from Jeju should be renamed C. tenuifolium, instead of C. tapetum or C. latum. C. tenuifolium is characterized by a tenuous, carpet-like and erect thallus with a very short and slightly compressed stipe arising from a discal holdfast, sub-pyriform and clavate utricles with a tumid and swollen apical head, and globular or sub-globular gametangia issued at the basal portion of the utricles.

Taxonomic Study on the Lichen Genus Xanthoparmelia (Ascomycotina, Parmeliaceae) in Korea

  • Wang, Xin Yu;Koh, Young-Jin;Hur, Jae-Seoun
    • Mycobiology
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    • v.36 no.4
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    • pp.203-210
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    • 2008
  • In previous studies investigating the genus Xanthoparmelia, thirteen different species have been reported from South Korea alone. However, there currently has been no revisional study performed until now. To explore the genus Xanthoparmelia, a phenotypic analysis was performed based on morphological, anatomical and chemical characters, while an investigation of Xanthoparmelia phylogeny was based on nuclear ribosomal (nr) DNA ITS sequences. A thorough examination of the specimens deposited in the Korean Lichen Research Institute (KoLRI) confirmed that eight species of Xanthoparmelia occur inside South Korea. Our analysis further confirmed the colors of the lower surface and medullar chemistry are important taxonomic characters in Xanthoparmelia. This study also presents a detailed description of each species and a key to the genus.

Lectotypification and identity of Thymus quinquecostatus var. magnus(Nakai) Kitam. (Labiatae) (섬백리향(꿀풀과)에 대한 선정기준표본 설정과 분류학적 검토)

  • Lim, Youngseok;Kim, Young-Dong;Shin, Hyunchur
    • Korean Journal of Plant Taxonomy
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    • v.36 no.2
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    • pp.129-136
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    • 2006
  • Thymus quinquecostatus var. magnus (Nakai) Kitam., an endemic taxon in Ulleung Island, is lectotypified. The lectotype is designated based on careful examination of the original materials (deposited in TI) cited in the protologue of the variety. In addition, taxonomic identity of T. quinquecostatus var. japonicus H. Hara, a problematic name often mistakenly referred to the above taxon, was throughly reexamined.

Current taxonomic status of Eurema mandarina (Pieridae: Lepidoptera) in Korea

  • Kim, Sung-Soo;Choi, Sei-Woong;Park, Jeong Sun;Kim, Iksoo
    • International Journal of Industrial Entomology and Biomaterials
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    • v.43 no.1
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    • pp.6-15
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    • 2021
  • We investigated the taxonomic status of the Korean populations of Eurema hecabe (Linnaeus, 1758) based on morphology and nuclear triose phosphate isomerase (Tpi). Up to now, the Korean population of E. hecabe was classified into E. mandarina (de l'Orza, 1869) based on morphological characteristics. A previous study raised the possibility of the Jeju-do population to be E. hecabe based on the color of forewing's fringe. However, morphological examination showed that the Korean population found in southern areas (Gyeonsang and Jeolla provinces), including Jeju-do is E. mandarina. In particular, the external morphology of autumn seasonal type of the Korean population was almost same as the Japanese mainland population, which is known as E. mandarina. Furthermore, sequence analysis of Tpi gene from nine individuals of E. mandarina collected in South Korean localities including Jeju-do clearly showed that all Korean specimens truly belong to E. mandarina.

A New Record of Sertularella acutidentata (Hydrozoa: Leptothecata: Sertularellidae) from Korea

  • Lee, Seung-Joon;Lee, Ki-Hwan;Jeong, Seung-Chan;Cho, In-Young;Hwang, Sung-Jin
    • Animal Systematics, Evolution and Diversity
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    • v.38 no.4
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    • pp.242-247
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    • 2022
  • In 2021, during a survey of cnidarian fauna around Geomundo located in the Dadohaehaesang National Park in the South Sea, complete pinnated hydroid colonies attaching on vertical rocky surface at depth of 45 m were collected by SCUBA diving. Through taxonomic examination, unrecorded species, Sertularella acutidentata Billard, 1919, is newly added to the hydrozoan fauna of Korea. Recently, taxonomic position of the genus Sertularella has been relocated into the new family Sertularellidae Maronna et al., 2016 and six species from Korean waters have been synonymized or transferred to new genera. Thus, a total of 17 species belonging to genus Sertularella, including the species reported in this study, have been reported in Korean waters so far.

A Taxonomic Revision of Deutzia Thunb. (Hydrangeaceae) in Korea

  • Ju Eun Jang;Mi Jung Choi;Dong Chan Son;Hyeok Jae Choi;Hee-Young Gil
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2022.09a
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    • pp.57-57
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    • 2022
  • A taxonomic revision of Deutzia in Korea was conducted based on critical observations of wild populations and herbarium specimens. Species delimitations were re-evaluated on the basis of morphological characters and distributions resulting in the recognition of five taxa. The texture of leaf, flower disk and capsules, the shape of leaf, inflorescence and capsules are useful diagnostic traits at the specific level. The five taxa are well distinguished from each other. Deutzia grandiflora var. baroniana can be distinguished by its distribution and calyx from Deutzia uniflora, which are morphologically similar. Deutzia paniculata Nakai, a rare and endemic plant, is characterized by having panicle in inflorescences. On the other hand, Deutzia glabrata Kom. is occasionally confused with Deutzia parviflora, but the most distinctive characters include the surface of leaves, the surface and size of capsules. Photographs and a key to five species of Deutzia were provided in addition to distribution.

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