• Title/Summary/Keyword: taxonomic confusion

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A taxonomic review of Scrophularia kakudensis Franch. and its relatives (큰개현삼과 근연분류군의 분류학적 재검토)

  • Jang, Hyun Do;Kim, Tae Hoon;Oh, Byoung Un
    • Korean Journal of Plant Taxonomy
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    • v.41 no.4
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    • pp.345-352
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    • 2011
  • The morphological characters of Scrophularia kakudensis Franch. and its relatives were examined. The major features of S. kakudensis were determined to resolve the taxonomic confusion with the closely related taxa of S. kakudensis var. microphylla, S. pilosa and S. cephalantha. S. kakudensis is characterized by its flowering in Jul. to Sep., the node numbers on a stem, the size of the leaves, the development of inflorescences and the presence of glandular trichomes on its stems and leaves. S. cephalantha is distinct from S. kakudensis by the earlier flowering season, fewer node numbers on a stem, and fewer numbers of flowers on shorter rachis. Smaller sizes of S. kakudensis var. microphylla, considered to be a problematic character previously, are stable and distinctive from other taxa in the natural habitats of the multiple populations investigated in the study. Therefore, the taxon should remain as a variety of S. kakudensis. An examination of the diagnostic characteristics of S. pilosa, such as its inflorescence type and the presence of a stem with pubescence, does not provide sufficient distinction from S. kakudensis. A type specimen and habitat survey also support the merging of the two taxa. S. pilosa should be treated as a synonym of S. kakudensis, because it is considered to be a misidentification of S. kakudensis.

An Ethnography on Daily Lives of Nurses in Emergency Departments (응급실 간호사의 일상에 대한 문화기술지)

  • Ha, Jae-Hyun;Park, Hyoung-Sook
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.23 no.4
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    • pp.448-459
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    • 2016
  • Purpose: This ethnographic study was conducted to explore and understand the meaning of the daily life of nurses in emergency departments. Objectives for this study were to identify and describe the true nature of emergency room nurses' daily experience and create a theoretical model based on the findings. Methods: Data were collected through in-depth interviews and participants observation. These data were recorded and transcribed verbatim with consent of the informants, 10 nurses who had cared for patients in emergency rooms. Data were collected between November 2013 and October 2014. Interviews continued until no new information could be identified from transcripts. Data were analyzed using the taxonomic analysis method developed by Spradley. Results: Based on the data acquired from interviews, nurses' cultural domains were classified as 'extensity of emergency room nurses', 'temporality of emergency room nurses', 'relationships among emergency room nurses' and 'becoming an emergency room nurses'. Conclusion: The daily culture of emergency room nurses could be summarized as 'busy daily life amidst confusion'. However, many nurses boosted their self-esteem by taking care of patients' collaboration with fellow nurses. In other words, nurses in emergency room forms a dynamic culture and pursue professionalism, rather than a simple chaotic daily life culture.

Historical Review and Notes on Small Mammals (Mammalia: Erinaceomorpha, Soricomorpha, Rodentia) in Korea

  • Lee, Jeong-Boon;Kim, Yong-Ki;Bae, Yang-Seop
    • Animal Systematics, Evolution and Diversity
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    • v.30 no.3
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    • pp.159-175
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    • 2014
  • A taxonomic study of small mammals (Erinaceomorpha, Soricomorpha and Rodentia) was conducted in order to find out the scientific names which have been used in Korea. The synonymy of each species and taxonomical research was reviewed and confirmed in this study. The species names are rearranged based on recent studies. Among the various confused names, available names were adopted such as follows: C. shantungensis shantungensis known as Crocidura suaveolens; C. shantungensis quelpartis known as C. dsinezumi; Rattus tanezumi known as R. rattus, called black rat, roof rat and ship rat, respectively. Apodemus sylvaticus (Muridae, wood mouse) is excluded in the checklist based on indistinct previous records and ambiguous habitation on the Korean Peninsula, and neighbors. In addition, we provide a new Korean vernacular name for Myocastor coypus, called the "Nutria" in Korea. We reflect that several species are repositioned to other genera. A checklist of Korean small mammals and synonym list for each species is provided to avoid confusion of scientific names in Korea. In this study, the list of small mammals in Korea is arranged to 33 species, 20 genera, 8 families, and 3 orders.

A molecular investigation of Saccharina sessilis from the Aleutian Islands reveals a species complex, necessitating the new combination Saccharina subsessilis

  • Starko, Samuel;Boo, Ga Hun;Martone, Patrick T.;Lindstrom, Sandra C.
    • ALGAE
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    • v.33 no.2
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    • pp.157-166
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    • 2018
  • Cryptic species complexes are increasingly recognized in phycological research, obscuring taxonomy and raising questions about factors influencing speciation. A recent exploration of kelp genetic diversity on Haida Gwaii, British Columbia revealed the existence of a new species, Saccharina druehlii, which is cryptic with Saccharina sessilis. This suggests that molecular investigations further north may be required to elucidate the taxonomy and evolutionary history of this lineage. Although, for several decades, S. sessilis was considered a single highly variable species, its taxonomy has been far from straightforward. In particular, Hedophyllum subsessile (Areschoug) Setchell is now recognized as a synonym of S. sessilis in North America, but as a growth form of Saccharina bongardiana in Far East Russia. To resolve this taxonomic confusion, we sequenced mitochondrial (CO1-5P) and nuclear (internal transcribed spacer) markers of S. sessilis populations from the Aleutian Islands, Alaska, USA. Interestingly, none of our sequences matched S. sessilis sensu stricto. Instead, CO1-5P sequences from populations in the central and eastern Aleutians matched exactly S. druehlii with increasing sequence divergence occurring westward. Samples from Attu, the western-most island, composed a genetic group that clearly represents Kjellman's concept of Hafgygia bongardiana f. subsessilis and is distinct enough from S. druehlii and S. sessilis to potentially constitute a distinct species. Therefore, Saccharina subsessilis comb. nov. is proposed for this entity. Our results suggest the existence of a species complex at the crown node of S. sessilis and thus further investigation of Saccharina in Alaskan waters should be conducted to reconstruct the evolutionary history of this fascinating lineage.

Reexamination of the Korean plant names Changpo and Sukchangpo (식물명 창포와 석창포의 재검토)

  • Shin, Hyunchur;Nomura, Michiyo;Kim, Il Kwon;Hong, Seung-jic
    • Korean Journal of Plant Taxonomy
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    • v.47 no.2
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    • pp.154-160
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    • 2017
  • The Korean plant names Changpo and Sukchangpo, including their related names Suchangpo and Kyeson, were somewhat confusingly used in both the Korean classics and even now. To clarify these names, the names written in the Chinese classics and the Korean classics were examined closely and compared to those of the modern flora of China and Korea. In the Chinese classics, Changpo and Sukchangpo were considered as conspecific with Acorus calamus, which has leaves with distinct veins, whereas Sukchangpo and Kyeson have leaves without distinct veins and are considered as A. gramineus. However, in the Korean classics, these names have been confusingly used thus far. Sukchangpo and Gyeson were considered as A. gramineus, and Sukchangpo and Changpo were considered as A. calamus, erroneously. Therefore, the following corrections are needed: plants having distinct leaf veins were named Changpo (A. calamus), and plants having vague leaf veins were named Sukchangpo (A. gramineus), and the names of Sukchangpo and Kyeson should be discarded to avoid confusion. In addition, to respond to the Convention on Biological Diversity, we propose a study to clarify the taxonomic identities of the plant names written in Chinese script and an examination of the Korean plant names listed in the Korean classics.