• Title, Summary, Keyword: key to species

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A visual identification key to Orchidaceae of Korea

  • Seo, Seon-Won;Oh, Sang-Hun
    • Korean Journal of Plant Taxonomy
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    • v.47 no.2
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    • pp.124-131
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    • 2017
  • Species identification is a fundamental and routine process in plant systematics, and linguistic-based dichotomous keys are widely used in the identification process. Recently, novel tools for species identification have been developed to improve the accuracy, ease to use, and accessibility related to these tasks for a broad range of users given the advances in information and communications technology. A visual identification key is such an approach, in which couplets consist of images of plants or a part of a plant instead of botanical terminology. We developed a visual identification key for 101 taxa of Orchidaceae in Korea and evaluated its performance. It uses short statements for image couplets to avoid misinterpretations by users. The key at the initial steps (couplets) uses relatively easy characters that can be determined with the naked eye. The final steps of the visual key provide images of species and information about distributions and flowering times to determine the species that best fit the available information. The number of steps required to identify a species varies, ranging from three to ten with an average of 4.5. A performance test with senior college students showed that species were accurately identified using the visual key at a rate significantly higher than when using a linguistic-based dichotomous key and a color manual. The findings presented here suggest that the proposed visual identification key is a useful tool for the teaching of biodiversity at schools, for the monitoring of ecosystems by citizens, and in other areas that require rapid, easy, and accurate identifications of species.

A Survey of Termitomyces (Lyophyllaceae, Agaricales), Including a New Species, from a Subtropical Forest in Xishuangbanna, China

  • Ye, Lei;Karunarathna, Samantha C.;Li, Huli;Xu, Jianchu;Hyde, Kevin D.;Mortimer, Peter E.
    • Mycobiology
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    • v.47 no.4
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    • pp.391-400
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    • 2019
  • A survey of mushrooms was conducted in Xishuangbanna, Yunnan Province, China, in the rainy season (May to October) of 2012, 2013, and 2014, during which 16 specimens of Termitomyces were collected. Preliminary macro- and micro-characteristics, together with ITS sequence data, showed that four of the specimens belonged to a new species (Termitomyces fragilis), while the other 12 belonged to T. aurantiacus, T. eurrhizus, T. globules, T. microcarpus, and T. bulborhizus. In this paper, T. fragilis is introduced as a species new to science based on morphological characterization and phylogenetic analyses. Macro- and micro- morphological descriptions, color photographs and line drawings of the new species, and a phylogenetic tree to show the placement of the new species are provided. T. fragilis is then compared with other closely related taxa in the genus Termitomyces.

A Taxonomic Review of the Genus Lycocerus (Cantharidae: Coleoptera) in Korea, with a Newly Recorded Species, Lycocerus striatus

  • Kang, Tae Hwa;Kim, Tae Woo;Seo, Hong Yul
    • Animal Systematics, Evolution and Diversity
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    • v.33 no.3
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    • pp.203-210
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    • 2017
  • A taxonomic review of the Korean Lycocerus (Cantharidae, Coleoptera) was presented. Through this study, total of four species were found from Korea including a species new to Korea, Lycocerus striatus. We newly provided a key to the Korean Lycocerus species and the distributional map on each species in this study.

Selaginella subvaginata (Selaginellaceae), a new spikemoss from China

  • Zhang, Xian-Chun;Shalimov, Aleksandr Petrovich;Kang, Jong-Soo;Zhang, Meng-Hua
    • Journal of Species Research
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    • v.9 no.3
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    • pp.221-232
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    • 2020
  • Selaginella vaginata is a common montane species with broad distribution in China and the Himalaya region, and several species that are morphologically similar to S. vaginata are distributed in Asia. The taxonomic revision of S. vaginata and related species was performed by morphological comparison of leaves, strobili, and spores, and phylogenetic analysis. Based on these results, a new species, S. subvaginata, sp. nov., has been identified. Morphologically, S. subvaginata has intermediate form between S. vaginata and S. repanda, which differs mainly in its main stem being erect, dorsal leaves long-ciliolate on inner margin and outer margin denticulate or with 2-4 cilia at base (long-ciliolate on both inner and outer margins in S. vaginata, denticulate on both inner and outer margins in S. repanda), and acroscopic base of ventral leaves long ciliolate (sparsely long ciliolate in S. vaginata, short ciliolate to denticulate in S. repanda). Moreover, phylogenetic analysis using three chloroplast markers(rbcL, atpI, and psbA) revealed that S. subvaginata is a distinct species among the anisosporophyllous species clade in Selaginellaceae.

Key to the Korean Freshwater Cladocera (한국 담수산 물벼룩류에 대한 검색표)

  • 김일회
    • Animal Systematics, Evolution and Diversity
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    • no.nspc2
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    • pp.43-65
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    • 1988
  • 41 species of Korean freshwater Cladocera have been recorded up to now, but very few taxonomic works on this animal group have been carried out . As there is shortage the references useful to identifiy the Korean materials, the present key is made to fill it up. This key comprises 53 Korean species, of which 42 including 11 new records in Korea have been collected from Korean from 1978 to 1986. 42 species, except 11 species that could not be examined by the author , are all figured on the basis of their morphological characters.

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Isolation and Identification of Lactic Acid Bacteria from Traditional Dairy Products in Baotou and Bayannur of Midwestern Inner Mongolia and q-PCR Analysis of Predominant Species

  • Wang, Dan;Liu, Wenjun;Ren, Yan;De, Liangliang;Zhang, Donglei;Yang, Yanrong;Bao, Qiuhua;Zhang, Heping;Menghe, Bilige
    • Food Science of Animal Resources
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    • v.36 no.4
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    • pp.499-507
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    • 2016
  • In this study, traditional culture method and 16S rRNA gene analysis were applied to reveal the composition and diversity of lactic acid bacteria (LAB) of fermented cow milk, huruud and urum from Baotou and Bayannur of midwestern Inner Mongolia. Also, the quantitative results of dominant LAB species in three different types of dairy products from Baotou and Bayannur were gained by quantitative polymerase chain reaction (q-PCR) technology. Two hundred and two LAB strains isolated from sixty-six samples were identified and classified into four genera, namely Enterococcus, Lactococcus, Lactobacillus, Leuconostoc, and twenty-one species and subspecies. From these isolates, Lactococcus lactis subsp. lactis (32.18%), Lactobacillus plantarum (12.38%) and Leuconosto mesenteroides (11.39%) were considered as the dominated LAB species under the condition of cultivating in MRS and M17 medium. And the q-PCR results revealed that the number of dominant species varied from samples to samples and from region to region. This study clearly shows the composition and diversity of LAB existing in fermented cow milk, huruud and urum, which could be considered as valuable resources for LAB isolation and further probiotic selection.

Review of the Macrophya regia group (Hymenoptera: Tenthredinidae) from China with the descriptions of two new species

  • LI, Ze-Jian;LIU, Meng-Meng;WEI, Mei-Cai;ZHU, Chao-Dong
    • Entomological research
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    • v.48 no.5
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    • pp.405-415
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    • 2018
  • The Macrophya regia group is reviewed and five species are recognized from China, among them two new species, M. acutiserrula Li, Liu & Wei sp. nov. and M. frontalis Li, Liu & Zhu sp. nov., and three known species, M. regia Forsius 1930, M. maculoclypeatina Wei et al. 2003, and M. xiaoi Wei et al. 2003. A key to the Chinese species of the Macrophya regia group are provided.

A Note on the Lichen Genus Ramalina (Ramalinaceae, Ascomycota) in the Hengduan Mountains in China

  • Oh, Soon-Ok;Wang, Xin Yu;Wang, Li Song;Liu, Pei Gui;Hur, Jae-Seoun
    • Mycobiology
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    • v.42 no.3
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    • pp.229-240
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    • 2014
  • On the basis of extensive field investigation and a series of herbarium specimen identifications, we present and discuss the descriptions and distribution of 22 species of Ramalina found in the Hengduan Mountains of southwestern China. In this revisionary study, representatives of the Ramalina genus, including R. americana, R. confirmata, R. dendriscoides, R. obtusata, R. pacifica, R. pentecostii, R. peruviana, R. shinanoana, and R. subcomplanata are found for the first time in this area. In addition, R. holstii is reported for the first time China. Finally, a newly described species identified as Ramalina hengduanshanensis S. O. Oh & L. S. Wang is reported. It is characterized as growing from a narrow holdfast, solid, sparsely or richly and irregularly dichotomously branched, palmate and flattened lobes with distinctly dorsiventral appearance, surface rugose to reticulate, surface rugosely cracked, dense chondroid tissue, helmet shaped soralia at the tip. The species grows on rock and tree at the highest elevations in this area. Although very few lichen species belonging to the genus Ramalina have been collected above 4,000 m, this new species is found at this elevation. We present detailed morphological, anatomical, and chemical descriptions of this species along with molecular phylogenetic analysis of the internal transcribed spacer rDNA sequences.

First record of Ishizakiella supralittoralis (Ostracoda, Cytheroidea, Leptocytheridae) from South Korea with a key to species of the genus

  • Yoo, Hyunsu;Karanovic, Ivana;Lee, Wonchoel
    • Journal of Species Research
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    • v.1 no.1
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    • pp.68-77
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    • 2012
  • Ishizakiella supralittoralis (Schornikov, 1974) was collected from rock pools near Busan, South Korea, and is redescribed herein. It is the first record of this species from Korea, and also the first finding of a living population of Ishizakiella McKenzie & Sudijono, 1981 from the continental margins. Here we also comment on the diversity of Ishizakiella in Japan, possible existence of cryptic species, and provide a key to all six currently known species of this genus, including the two fossil ones.