• Title/Summary/Keyword: Mt. Halla)

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An unrecorded species in Korean flora : Hydrangea luteovenosa Koidz. (Hydrangeaceae) (한국산 미기록 식물 : 성널수국 (수국과))

  • Moon, Myung Ok;Kang, Young Je;Kim, Chul Hwan;Kim, Chan-Soo
    • Korean Journal of Plant Taxonomy
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    • v.34 no.1
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    • pp.1-7
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    • 2004
  • An unrecorded species in Korean flora, Hydrangea luteovenosa Koidz. (Hydrangeaceae) was collected from parasitic cone, Seongneol-orom region of Mt. Halla in Prov. Jeju-do. This species is readily distinguishable from H serrata (Thunb.) Ser. and H. petiolaris Siebold & Zucc. in Korea by habit, length and width of leaves, length of petiole, morphology of petals and leaf margins, position of ovary, number of stamens and secondary veins.

Cellular slime molds of mt. halla (I)-occurrence and distribution in the forests above 900m in altitude- (漢拏山의 細胞性 粘菌 ( 1 ) - 해발 900m 이상 삼림에서의 출현과 분포 -)

  • Hong, Jeong-Soo;Kwon, Hye-Ryun;Chang, Nam-Kee
    • The Korean Journal of Ecology
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    • v.15 no.2
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    • pp.181-189
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    • 1992
  • Dictyostelid cellular slime molds were quantitatibly isolated from the soils of mt.halla (above 900m in altitude), korea, according to the 'clonal isolation technique(cavender and raper, 1965a)'. Total fifteen species were found, including 1 new and 6 undescribed species.these are dictyostelium mucorodes, dictostelium minutem,polysphondylium pallidum fasciculatum, polysphondylium violaceum, dictyostelium flavidum,dictyostelium fasciculatum, polysphondylium violaceum, dictyostelium flavidum sp. n.(HL-1),dictyostelium aureo-stipes var. aureo-stipes, dictyostelium capitatum, dictyostelium giganteum,dictyostelium polycephalum,dictyostelium brefeldianum,dictyostelium macrocephalum, and dictyostelium sphaerocephalum, dictyostelium sp. (HL-2), dictyostelium sp. (CJ-9). D. mucoroides was the dominant species, and D. minutam,p.pallidum, d. fasciculatum, and p. violaceum were relatively common. d. polycephalum, d. brefeldianum, d. macrocephalum, dictyostelium sp. (HL-3), and d. sphaerocephalum were very rare. Species diversity appeared to be the highest in the deciduous broad-leaved forest from the soils of which 14 species were isolated. eight species were, including five undescribed species, isolated only from this forest soils. Number of isolates severely decrease at the forests above 1,500m in altitude.

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First Report on Racodium therryanum Associated with Seed Infection of Abies koreana in Korea

  • Cho, Hye-Kyoung;Miyamoto, Toshizumi;Takahashi, Kunihide;Kim, Dong-Won;Hong, Sung-Gak;Kim, Jong-Jin
    • The Plant Pathology Journal
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    • v.21 no.3
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    • pp.297-300
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    • 2005
  • Racodium therryanum from Korea is described here for the first time. This fungus is characterized by that it is isolated from conifer seeds and seedlings, including Abies, colonies are dark green to dark gray and intricate, and it forms chlamydospores in cultures. This pathogenic fungus was isolated from seeds of Abies koreana growing on Mt. Halla, Jeju island. The fungus stopped growth more than at $30^{\circ}C$ but grew even at $O^{\circ}C$. This fungus infected seeds of A. koreana under the snow during winter season. There is a high probability that this fungus affects the natural regeneration of A. koreana on Mt. Halla.

The Study on the Lava tree-molds in Jeju Island (제주도의 용암수형에 관한 연구)

  • Kim, Byoung-Woo
    • Journal of the Speleological Society of Korea
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    • no.87
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    • pp.1-7
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    • 2008
  • Jeju-do is an oval-shape volcanic island spanning 73km east to west and 31km north to south. The 1,950meter high, Mt. Halla is the centerpiece of unique landscape of Jeju Island, Sloping gently downward toward the coastline. The most of lava tree-molds are appeared at the below of 300m on Mt. Halla. There are many lava tree-molds in Weullim-ri, Hallim-eup. Vertical tree-molds, recumbent tree-molds are distributed widely in Hallim-eup area. By the observation of shape and structure, lava tree-molds can be classified into, recumbent tree-molds and capture tree-molds, fragmental tree-molds, compounded tree-molds, vertical tree-molds.

A new record for the Korean flora: Nervilia nipponica Makino (Orchidaceae) (우리나라 미기록 식물: 영아리난초(난초과))

  • Kim, Chan-Soo;Moon, Myung-Ok;Koh, Jung-Goon
    • Korean Journal of Plant Taxonomy
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    • v.39 no.3
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    • pp.229-232
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    • 2009
  • Nervilia nipponica Makino (Orchidaceae), a genus and species previously unrecorded for the Korean flora, was collected in the deciduous forests of Mt. Halla, Jeju Island. This species was known to be distributed mainly from tropical to subtropical regions of Taiwan and Japan. Genus Nervilia is distinguished from other genera of tribe Nervilieae (Orchidaceae) by having only a single, plicate leaf which develops and senesces before flowering shoots appear, stems unbranched, two pollinia, and sometimes lacking a viscidium.