• Title/Summary/Keyword: Morphological taxonomy

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Candelaria asiatica, an Ignored New Species from South Korea

  • Liu, Dong;Hur, Jae-Seoun
    • Mycobiology
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    • v.46 no.4
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    • pp.305-310
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    • 2018
  • The genus Candelaria is characterized by a micro-foliose to micro-fruticose thallus and contains eight species, two of which were reported in South Korea. During the excursion of a Korean lichen flora investigation, some suspected Candelaria concolor specimens were collected, and their morphological, chemical, molecular phylogenetic, and geographic analyses were conducted. The samples eventually proved to be a new species, Candelaria asiatica, which can be recognized by a small, yellow lobate thallus with a pulverulent surface, and a fragile lobe margin with blastidia or phyllidia-like lobules.

A newly Recorded Species of the Genus Hallodapus (Hemiptera: Heteroptera: Miridae) from the Korean Peninsula

  • Kim, Junggon;Bae, Jongmin;Hong, Euijeong;Jung, Sunghoon
    • Journal of Forest and Environmental Science
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    • v.38 no.2
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    • pp.133-136
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    • 2022
  • A species, Hallodapus kyushuensis is first reported from the Korean Peninsula. Morphological information including the redescription, diagnosis, and a key to the Korean Hallodapus species are provided.

Description of Spheropistha melanosoma Yaginuma, 1957 (Araneae: Theridiidae) from Korea

  • Sue Yeon Lee;Jung Sun Yoo;Chang Moon Jang;Seung Tae Kim
    • Korean Journal of Environmental Biology
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    • v.41 no.1
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    • pp.14-17
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    • 2023
  • A male Spheropistha melanosoma Yaginuma, 1957 from Korea in the family Theridiidae Sundevall, 1833 is described with measurements and morphological photos of the diagnostic characteristics. This species was collected with a sweep net around arable lands in a mountainous mixed forest during the investigation of spider fauna on Ulleungdo Island in 2019.

Molecular and Morphological Characterization of Endophytic Heterobasidion araucariae from Roots of Capsicum annuum L. in Korea

  • Paul, Narayan Chandra;Deng, Jian Xin;Shin, Kyu-Seop;Yu, Seung-Hun
    • Mycobiology
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    • v.40 no.2
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    • pp.85-90
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    • 2012
  • A species of Heterobasidion was encountered during a diversity study of endophytic fungi from healthy root tissues of chili pepper (Capsicum annuum L.) in Korea. The fungal species (CNU081069) was identified as Heterobasidion araucariae based on phylogenetic analyses of the internal transcribed spacer and translation elongation factor gene sequences. Morphological descriptions of the endophytic isolate matched well with the previous references and supported the molecular identification. The fungus Heterobasidion araucariae CNU081069 is new to Korea.

Cryptonemia asiatica sp. nov. (Halymeniaceae, Rhodophyta), a new marine macroalgal species from Korea and Japan

  • Yang, Mi Yeon;Kim, Myung Sook
    • Journal of Ecology and Environment
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    • v.37 no.4
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    • pp.387-393
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    • 2014
  • We propose Cryptonemia asiatica sp. nov. from Korea and Japan. We used molecular analyses of plastid-encoded rbcL and morphological observations to resolve the taxonomic identities of C. lactuca from Korea, C. luxurians from Japan, and C. seminervis from Spain. Specimens of C. lactuca and C. luxurians fell within the same molecular phylogenetic clade (with 100% bootstrap support) and were clearly separated from specimens of C. luxurians collected from the type locality in Brazil. Our analyses demonstrated identical molecular sequences between C. seminervis specimens from Spain and C. lomation specimens from France. Morphological characteristics of the new species, C. asiatica include prominent midribs through the mid thallus, a cortex 4-6 cells thick, and a blade with undulate margins. Molecular evidence indicates that specimens from Korea and Japan previously assigned to C. lactuca and C. luxurians, respectively, should be reassigned to Cryptonemia asiatica. Binomial C. luxurians from Brazil should be resurrected as the independent species of Cryptonemia.

A New Record of Sea Urchin (Echinoidea: Stomopneustoida: Glyptocidaridae) from the Yellow Sea, Korea

  • Lee, Taekjun;Shin, Sook
    • Animal Systematics, Evolution and Diversity
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    • v.29 no.4
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    • pp.312-315
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    • 2013
  • Sea urchins were collected from waters adjacent to Daludo Island and Mohang harbor in the Yellow Sea, and were identified into Glyptocidaris crenularis A. Agassiz, 1864, of the family Stomopneustidae within the order Stomopneustoida, based on morphological characteristics. This species has two unique morphological characteristics: the ambulacral plate is composed of three primary plates and two demi-plates, and a valve of globiferous pedicellaria consists of with a well-developed long terminal hook and a unique stalk equipped with one to six long lateral processes covering membranes, resembling fins. It is newly recorded in Korea and is described with photographs. This brings the total number of sea urchins reported from the Yellow Sea, Korea, to seven.

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.

New Record of the Genus Oncholaimus Nematode Species (Nematoda: Oncholaimidae) from the East Sea of Korea

  • Lee, Hyo Jin;Rho, Hyun Soo;Jung, Jongwoo
    • Korean Journal of Environmental Biology
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    • v.33 no.2
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    • pp.170-176
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    • 2015
  • Oncholaimid nematode, Oncholaimus secundicollis Shimada, Kajihara and Mawatari, 2009, is firstly reported based on a comparative morphological study. The present specimens of O. secundicollis are collected from rocky intertidal seagrass on the eastern coast of Korea. Oncholaimus secundicollis is distinguished from all of its congeners by the following combination of morphological characteristics: buccal cavity large with thick cuticular wall and three teeth, left subventral tooth larger than right subventral or dorsal teeth, and the presence of two remarkable precloacal papillae with nine pairs of cloacal setae and single ventral tail papilla with two pairs of short setae. In this study, we provide taxonomic description and illustration of unrecorded species of the genus Oncholaimus.

Phylogenetic relationships of Rosenvingea (Scytosiphonaceae, Phaeophyceae) from Vietnam based on cox3 and psaA sequences

  • Lee, Kyung Min;Hong, Dang Diem;Boo, Sung Min
    • ALGAE
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    • v.29 no.4
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    • pp.289-297
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    • 2014
  • The taxonomic status and the distribution of Rosenvingea species need attention because of the difficulties in morphological identification in the laboratory as well as in the field. We analyzed mitochondrial cox3 and plastid psaA gene sequences from Rosenvingea species from Vietnam, Mexico and Panama in combination with morphological examinations. Our results confirmed the occurrence of R. intricata and R. orientalis in Vietnam. R. intricata formed dense decumbent mats with many flat branches, often inter-adhesive, and was up to 5 cm in diameter. R. orientalis thalli were up to 18 cm long with narrow (less than 2 mm in width) tubular to compressed fronds. Both cox3 and psaA phylogenies revealed the non-monophyly of the genus Rosenvingea, as reported previously for other scytosiphonacean genera.

Notes on Two Marine Algal Halymeniacean Species from Korea (한국산 해조 보들지누아리과 2종의 주해)

  • KANG, Pil Joon;NAM, Ki Wan
    • Journal of Fisheries and Marine Sciences Education
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    • v.27 no.6
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    • pp.1593-1601
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    • 2015
  • Two marine algal halymeniacean species were collected from eastern coast of Korea during the survey of indigenous species of algae. One is distinct from other similar species by foliose thalli with irregular shape and several branches and linear proliferations without division. The other is characterized by indistinct midrib, foliose unbranched thalli and refractive ganglioid cells in medulla. These two species are identified as Grateloupia latissima and Cryptonemia yendoi based on the morphological features, respectively. Morphological and taxonomic notes on these species are included in the present study. This is the first record of G. latissima and C. yendoi from Korea.