• Title/Summary/Keyword: Taxon

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A New Record of the Genus Camarops (Boliniaceae) in Korea

  • Kim, Changmu;Lee, Jin Sung;Lim, Young Woon
    • The Korean Journal of Mycology
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    • v.42 no.4
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    • pp.341-343
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    • 2014
  • Camarops ustulinoides (Henn.) Nannf., belonging to the family Boliniaceae (Order Boliniales), is reported as new to Korea. The morphological characteristics and molecular phylogenetic analysis based on the nucLSU region sequence confirm the recognition of this taxon. Illustrated descriptions of C. ustulinoides are provided.

Graphis lueckingiana, a New Species from Cameroon

  • Joshi, Santosh;Upreti, Dalip K.;Hur, Jae-Seoun
    • The Korean Journal of Mycology
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    • v.46 no.4
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    • pp.491-494
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    • 2018
  • A new species of Graphis is described from Cameroon, Africa. The new taxon is distinguished by a greyish-green, glossy, uneven, and continuous thallus. Further, it possesses stellately branched lirellae, and its entire labia are covered almost completely with thick thalline margin. It also has a completely carbonized proper exciple, which is considerably thick at the base, one-spored asci, and muriform hyaline to yellowish ascospores.

One Unrecorded Endophytic Fungi from Sub-alpine Conifer, Rhizosphaera pini

  • Eo, Ju-Kyeong;Park, Eunsu
    • The Korean Journal of Mycology
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    • v.47 no.2
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    • pp.121-124
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    • 2019
  • An endophytic fungus, Rhizosphaera pini strain NIE7426, was isolated from the sub-alpine coniferous tree Abies nephrolepis in Mt. Nochu of Gangwon Province. It was characterized by macroscopic and microscopic features, as well as the internal transcribed spacer (ITS) 1, 2 and 5.8S sequences. All morphological and molecular features support the first recognition of this taxon in Korea. In addition, this study adds A. nephrolepis as a host plant R. pini.

Lecanorchis japonica var. insularis (Orchidaceae: Vanilloideae), a new variety from Jejudo Island, Korea

  • SEO, Seon-Won;CHUNG, Mi-Sook;CHUNG, Young-Soon;LIM, Chae Eun;OH, Sang-Hun
    • Korean Journal of Plant Taxonomy
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    • v.50 no.4
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    • pp.413-418
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    • 2020
  • A new variety, Lecanorchis japonica var. insularis (Orchidaceae: Vanilloideae), a mycoheterotrophic orchid from Jejudo Island, Korea, is described and illustrated. It usually grows with L. japonica var. japonica, L. japonica var. hokurikuensis and L. kiusiana in evergreen forests. The newly described variety is distinguished from L. japonica vars. japonica, hokurikuensis, and kiiensis by having fully opened, larger flowers and an obtuse labellum apex.

Seasonal Fluctuation of Zooplankton Community in Asan Bay, Korea (아산만 동물플랑크톤 군집의 계절변화)

  • CHOI Keun-Hyung;PARk Chul
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.26 no.5
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    • pp.424-437
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    • 1993
  • About three fourths of total variability of zooplankton in Asan Bay was associated with season and the difference between inner bay and outer bay was relatively small. However, the differences in percent compositions of major taxa at inner bay and outer bay increased gradually with time, suggesting the change of ecosystem in this bay due to the human exploitation such as reclamation. Seasons of maximum abundances were different among the taxa but consistent for each taxon throughout the three survey years. Calanus sinicus and Acartia bifilosa showed maximum abundance in spring. Sagitta crassa, Paracalanus parvus, A. pacifica, Tortanus spinicaudatus, Corycaeus affinis and Decapoda larva were most abundant in summer. Labidocera euchaeta and Bivalve larva appeared most abundantly in fall. But in winter no taxon showed maximum. In general, low abundance with many species in fall, low abundance and few taxa in winter, increase in both number of taxa and abundance in spring, and high abundance and many taxa in summer were observed. A hypothesis for the observed patterns was suggested although more evidences were needed to support this.

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A Flora of Mt. Seokseong in Yongin-si (용인시 석성산의 식물상)

  • Lee, Woong-Bin
    • Korean Journal of Environmental Biology
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    • v.24 no.3
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    • pp.282-293
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    • 2006
  • Mt. Seokseong is located $37^{\circ}15'15'{\sim}37^{\circ}17'00'N$ in latitude at $127^{\circ}09'30'{\sim}127^{\circ}11'00'E$ in longitude in Yongin. The investigated vascular plants consist of total 293 taxa: five forms, 45 varieties, 243 species, 175 genera, 75 families, 34 orders, four classes. Twenty two special plants designated by Environment Ministry were investigated: five grade for one taxon, four grade for one taxon, three grade for six taxa, two grade fay three taxa, and one grade for 11 taxa. As for the useful plants, there were 141 taxa of edible ones (48.1%), 68 taxa of medicinal ones (23.2%), 33 taxa of ornamental ones (11.3%), 62 taxa of industrial ones (21.2%), and two taxa of poisonous ones (0.7%) respectively. As the above results, there are abundant plant resources in this area. But it needed to protect natural resources in this area, because of threatening factors such as urbanization and/or industralization in the adjacent area.

Biological Characteristics of Organic Soil applying Rye (Secale cereal L.) as Green Manure for the Long Term (장기간 호밀을 풋거름작물로 시용한 유기농 토양의 생물학적 특징)

  • Bak, Gye-Ryeong;Lee, Gye-Jun;Kim, Tae-Yeong;Jee, Sam-Nyu;Kim, Chang-Seok;Lee, Hyeong-Bok;Lee, Eun-Kyeong;Song, Jae-Kyeong
    • Korean Journal of Organic Agriculture
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    • v.26 no.3
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    • pp.427-437
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    • 2018
  • In this study, microorganism community characteristics of organic managed soil which applied rye (Secale cereal L.) as green manure for 25 years, were determined. The chemical properties of organic soil showed high level of organic matter and available $P_2O_5$, while the level of exchangeable cation was low. The analysis of dehydrogenase activity and carbon source utilization indicated that the values in on organic soil were significantly higher than those of the control. It suggested that the microorganism community of organic soil had high microorganism activity, compared to the control. In addition, when the 16S rRNA gene-targeted NGS (Next generation sequencing) analysis was conducted to estimate the class of bacterial community, the class level of bacterial taxon composition on organic soil showed higher portion of Sphingobacteriia, Acidobacteriia, Gammaproteobacteria, Solibacteres and Planctomycetia. By base on the results of various reports in which organic managed soil had high portion of Acidobacteriia and Planctomycetia, the characteristic of taxon composition in organic soil, which showed the high percentages of Ktedonobacteria, Sphingobacteriia, Acidobacteriia and Gammaproteobacteria, was resulted from the application of rye as a green manure for the long term. However, further researches were needed because the crop effect was not considered in this study.

A Taxonomic study of the Ophelia D. Don(Gentianaceae) in Korea -Anatomical and ultrastructure- (한국산 용담과 쓴풀속(Ophelia) 식물의 분류 2. 해부학적형질 및 미세구조)

  • 백원기
    • Korean Journal of Plant Resources
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    • v.13 no.1
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    • pp.66-79
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    • 2000
  • Anatomical characters such as stem, leaf, ovary, calyx lobe, ultrastructure of stigma, epidermis of leaf blade and midvein, corolla lobe, nectary, seed coat and pollen were examined on 6 taxa of Korean Ophelia, including 5 taxa distributed in south Korea and one taxon considered to be the variation type of Ophelia wilfordi, in order to clarify the limits of intersection and interspecies and to establish the taxonomic position. One taxon distributed in north Korea was also included in the description of species by observation of herbarium specimen of the University of Tokyo in Japan. The two sections were successfully distinguished by internal structure of ovary, morphology of nectary, surface sculpturing of corolla lobe and pollen, ultrastructure of seed and seed coat, which were useful characters to distinguish taxa higher than species. The variation type of Ophelia wilfordi was not distinguished with other species except for absent or present of purple spot in corolla lobe.

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Identification of Lacrymaria velutina (Pers. Ex Fr.) Konrad & Maubl. from Micheon-myeon, Jinju-city, Korea

  • Han, Ki-Soo;Volk, Thomas J.;Kim, Hee-Kyu
    • Mycobiology
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    • v.38 no.4
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    • pp.249-255
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    • 2010
  • We identified Lacrymaria velutina of the Coprinaceae in Korea. The unusually large and sturdy fruiting body, fibrillose to fibrillose-scaly cap and stalk without a volva with an obscure superior hairy ring zone or hairy annulus, and blackish brown, warted spores distinguished this species from closely related Psathyrella species. An illustrated account of the microscopic traits is presented. Fruiting bodies with obtusely hemispherical caps, 2.5~6 cm, becoming convex with age; surface dry, densely fibrillose-scaly with split margin; stipe, 4.5~6 cm, equal, hollow, fibrillose, dry, whitish above the superior ring zone, light brown below; crowded gills, adnexed, dark black at maturity. Pileipellis typically cellular with the gill edge appearing white and beaded. Blackish brown basidiospores that discolor in concentrated sulfuric acid. Spores elliptical, warted, $9\sim11{\times}6\sim8{\mu}m$, with prominent snout-like germpores. Cheilocystidia abundant, $57\sim68{\times}19\sim25{\mu}m$, and narrowly elongated clavate, often clustered in threes or fours. Pleurocystidia rarely present, $45\sim47.5{\times}12\sim13{\mu}m$, and clavate to utriform. This trait distinguishes our sample as L. velutina from other Psathyrella spp. of the Coprinaceae, which have smooth spores. This taxon was clarified by the observation that Psathyrella spores fade in concentrated sulfuric acid. A molecular phylogenetic study revealed that our specimen was Lacrymria velutipes, which is closely related to Lacrymaria lacrymabunda. Moreover, those two species are clearly distinguishable from other Psathyrella species, which agreed with the morphologically distinctive traits described above. We believe that this is the first report of this taxon, which has not been described in Korea.

A Study on Vascular Plants of Uninhabited Islands in the Deokjeok Archipelago (덕적군도 내 무인도서의 관속식물상 연구)

  • Kim, Jung-Hyun;Yun, Jong-Hak;Nam, Gi-Heum;Lee, Jung-Hyun;Choi, Byoung-Hee;Lee, Byoung-Yoon
    • Journal of Environmental Science International
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    • v.20 no.1
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    • pp.1-23
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    • 2011
  • This study was carried out to investigate the flora of uninhabited Island in the Deokjeok Archipelago. The vascular plants which were collected in 5 times (from Jun. 2009 to Apr. 2010) were identified as 350 taxa in total, including 89 families, 231 genera, 309 species, 5 subspecies, 31 varieties, and 5 forms. There were many useful plants such as 2 taxa of Korean endemics and 2 taxa of rare plants which were proposed by the Korea Forest Service. The specially determined plants which were categorized as 5 degrees in all by the Ministry of Environment appeared as 49 taxa; Degree V was one taxon; Senecio nemorensis and IV was one taxon; Apocynum lancifolium and III was 2 taxa; Stauntonia hexaphylla, Hylotelephium spectabile and I was 45 taxa; Machilus thunbergii, Neolitsea sericea, Hedera rhombea, etc. Based on the plants which were approval objects when transfer overseas were 5 taxa, and 21 taxa of evergreen plants were recorded in the investigated area. The naturalized plants were identified as 15 taxa, and their naturalization ratio were found to be 4.2% respectively.