• Animal Systematics, Evolution and Diversity
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• v.17 no.1
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• pp.21-28
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• 2001

Two species of the genus Indomegoura Hille Ris Lambers (Hemiptera: Aphideidae) are recognized in Korea, including I. nigrotibiae (Tao, 1963) new to Korean Peninsula, Besides the descriptions, the host plants nad the key to the species of genus Indomegoura are provided and the biology of each of each species are discussed.

• Ocean Science Journal
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• v.41 no.4
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• pp.207-210
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• 2006

Leptocephali of the genus Saurenchelys in the family Nettastomatidae were collected from the coastal area of Pohang, Korea and described as the first record from Korean waters. S. stylura and S. lateromaculatus are characterized by two intestinal swellings, the pattern of pigments in the notochord, and by smaller pectoral fins than those of other genus. They are very similar to each other but they are distinguished by the pattern of pigments in the notochord and the intestinal swellings.

• The Korean Journal of Soil Zoology
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• v.1 no.1
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• pp.1-4
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• 1996

This paper deals with a new genus, Mainothrus gen. n., and a new species, M. aquaticus sp. n., belonging to Trhypochthoniidae Willmann, 1931 from Korea. The key characters of the new genus distinguishable from other genera of Trhypochthoniidae are 1) six pairs of genital setae, 2) two pairs of anal setae, 3) fifteen pairs of notogastral setae, and 4) epimeral setal formula; 3-1-3-2.

• Mycobiology
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• v.38 no.3
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• pp.219-221
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• 2010

The paper describes three new records of lichen genus Rhizocarpon (R. alpicola, R. grande and R. lavatum) from South Korea. Brief taxonomic description and comments are provided for the new records. An artificial key is also provided for known species of this genus in South Korea.

• Mycobiology
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• v.39 no.1
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• pp.54-56
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• 2011

This study describes two new records of the lichen genus Placynthiella (P. hyporhoda and P. icmalea) from South Korea. A brief taxonomic description and comments are provided for the new records. An artificial key is also provided for known species of this genus in South Korea.

• Korean Journal of Pharmacognosy
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• v.3 no.1
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• pp.23-25
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• 1972

Preliminary investigations were carried out to isolate the constituents from the stems of genus Thalictrum. Methanol extracts of eight species from the genus were examined by thin layer chromatography. The author observed three different spots with Dragendorff's reagent in Thalictrum actaefolium, whereas none was detected in Thalictrum tuberiferum and Thalictrum simplex. Various fluorescent colors with different Rf values were detected in all species by UV ray, suggesting that each species may have different components.

• Journal of the Korean Mathematical Society
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• v.39 no.1
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• pp.77-89
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• 2002

In this paper, we define for a component $X_{0}$ of a nonsingular compact real algebraic surface X the complex genus of $X_{0}$, denoted by gc($X_{0}$), and use this to prove the nonexistence of nonzero degree entire rational maps f : $X_{0}$ Y provided that gc(Y) > gc($X_{0}$), analogously to the topological category. We construct connected real surfaces of arbitrary topological genus with zero complex genus.

• Journal of the Korean Mathematical Society
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• v.54 no.2
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• pp.545-561
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• 2017

The signature of a surface bundle over a surface is known to be divisible by 4. It is also known that the signature vanishes if the fiber genus ${\leq}2$ or the base genus ${\leq}1$. In this article, we construct new smooth 4-manifolds with signature 4 which are surface bundles over surfaces with small fiber and base genera. From these we derive improved upper bounds for the minimal genus of surfaces representing the second homology classes of a mapping class group.

• Korean Journal of Pharmacognosy
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• v.13 no.3
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• pp.93-98
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• 1982

The internal structure and surface view of the leaves of the genus Solidago have been clarified. A key based on the anatomical features has been constructed.

• Korean journal of applied entomology
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• v.38 no.3
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• pp.213-216
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• 1999

Tow unrecorded species of orb weavers belonging to genus Neoscona(Araneae: Araneidae) which were recently described from China for the first tiem were described from Korea. Korean spiders belonging to genus Neoscona, therefore, becomes 10 species with 8 recorded species.