• Korean Journal of Plant Taxonomy
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• v.52 no.1
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• pp.24-28
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• 2022

Pteris griffithii Hook., one of the rarest fern species on the Indian subcontinent, is reported from Bhutan for the first time. The identity of this species was confirmed through morphological determination at the National Herbarium (THIM) of the National Biodiversity Centre (NBC) of Bhutan. It was found only in one location, in Gyelpozhing in eastern Bhutan, at an elevation of 521 m a.s.l. on 10 January 2016. Given that a very limited study of this species was conducted, the knowledge baseline with regard to its distribution is poor. It is also reported that this species has not been found for several years. The species is also considered to be very rare or critically endangered in some countries; however, there are no assessments on the International Union for Conservation of Nature (IUCN) Red List for this particular species. This paper attempts to provide baseline information considering its rarity and data deficiency. This species is also reported from the adjacent neighboring Indian state of Arunachal Pradesh as very rare, and also from Myanmar; however, confirmation of its presence in China is not clear at this time. Therefore, considering its data deficient status, we attempt to document it scientifically to create a knowledgebase pertaining to this particular species. Concurrently, this species merits further research to understand its distribution patterns in Bhutan and any related anthropogenic threats.

• Animal Systematics, Evolution and Diversity
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• v.32 no.1
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• pp.44-48
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• 2016

The Korean peninsula has diverse habitats and so would be expected to have a rich millipede fauna because of its location between the Paleoarctic and Oriental regions. To facilitate studies on millipedes, this work provides an updated list and discussion of Korean millipedes. A total of 69 species had been recorded up to 2010, but since then no new species have been reported. Among 69 species, 49 are endemic to the Korean peninsula. From 1950 to the present, an average of only seven new species from the Korean peninsula has been described per decade. This number does not reflect the biodiversity of millipedes in Korea, especially when compared to Taiwan, which has only one-third the area of the Korean peninsula, but from which a greater number of millipede species have been recorded (75 vs. 69 species). Japan has twofold the land area of the Korean peninsula, and an almost threefold higher number of millipede species. Further, more-intensive surveys will likely result in identification of more millipede species in the Korean peninsula.

• The Plant Pathology Journal
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• v.38 no.5
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• pp.522-532
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• 2022

Gummy stem blight (GSB), a common and serious disease in cucurbits worldwide, is caused by three genetically distinct species: Stagonosporopsis cucurbitacearum (syn. Didymella bryoniae), S. citrulli, and S. caricae. In Korea, however, the three species of Stagonosporopsis have been barely characterized. In this study, 21 Stagonosporopsis isolates were recovered from watermelon (Citrullus lanatus) and muskmelon (Cucumis melo) leaves and stem showing blight symptoms collected from 43 fields in Korea. Sequence analysis performed with an internal transcribed spacer region was not competent to differentiate the Stagonosporopsis isolates. On the contrary, analysis of β-tubulin (TUB) genes and three microsatellite markers, Db01, Db05, and Db06, successfully differentiated Stagonosporopsis isolates. Further sequence analysis identified two Stagonosporopsis species, S. citrulli and S. caricae, and one previously unknown species of Stagonosporopsis. Representative isolates from three species caused dark water-soaked lesions on the detached watermelon and muskmelon leaves with no significant differences in the aggressiveness. Our results indicate that the S. citrulli, S. caricae, and unknown Stagonosporopsis sp. are all causal agents of GSB for both watermelon and muskmelon. This is the first report of a new species and the population structure of Stagonosporopsis species causing GSB in Korea.

• Animal Systematics, Evolution and Diversity
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• v.39 no.4
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• pp.212-217
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• 2023

The subfamilies Lithocolletinae and Ornixolinae belong to the family Gracillariidae (Lepidoptera). In this study, one species in the subfamily Lithocolletinae, Neolithocolletis hikomonticola Kumata, 1963 and two species in the subfamily Ornixolinae, Conopomorpha flueggella Li, 2011 and Epicephala nudilingua Kawakita & Kato, 2016 are reported for the first time from Korea. Also, two genera, Neolithocolletis Kumata, 1963 and Conopomorpha Meyrick, 1885 are reported as new to Korea. All available information of these taxa, including details on their host plants and distributional regions are provided with the descriptions and illustrations of the adults, male and female genitalia of these taxa.

• Animal Systematics, Evolution and Diversity
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• v.17 no.1
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• pp.115-120
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• 2001

A new phycitine moth, Ceroperepes dorsomaculata sp. nov. is described from Korea. Acrobasis rufilimbalis (Wileman) is newly added to the pyralid fauna of Korea, with redescription and illustrations of adult and both sexes of genitalia.

• ALGAE
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• v.32 no.1
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• pp.29-39
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• 2017

Geographic distributions of pathogens are affected by dynamic processes involving host susceptibility, availability and abundance. An oomycete, Pythium porphyrae, is the causative agent of red rot disease, which plagues Pyropia farms in Korea and Japan almost every year and causes serious economic damage. We isolated an oomycete pathogen infecting Pyropia plicata from a natural population in Wellington, New Zealand. The pathogen was identified as Pythium porphyrae using cytochrome oxidase subunit 1 and internal transcribed spacer of the rDNA cistron molecular markers. Susceptibility test showed that this Pythium from New Zealand was able to infect several different species and genera of Bangiales including Pyropia but is not able to infect their sporophytic (conchocelis) phases. The sequences of the isolated New Zealand strain were also identical to Pythium chondricola from Korea and the type strain from the Netherlands. Genetic species delimitation analyses found no support for separating P. porphyrae from P. chondricola, nor do we find morphological characters to distinguish them. We propose that Pythium chondricola be placed in synonymy with P. porphyrae. It appears that the pathogen of Pyropia, both in aquaculture in the northern hemisphere and in natural populations in the southern hemisphere is one species.

• ALGAE
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• v.19 no.3
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• pp.191-199
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• 2004

Morphological and phonological characteristics of brown alga Spatoglossum crassum Tanaka new to Korea were described based on the field and the indoor cultured plants. The taxonomic characteristics of the plants were agreed to those from the type locality-submerged reproductive organs in cortex, anatomical features, and absence of phaeophycean hairs on the surface. But they have rudimentary midrib on lower portion of thallus. We can observe the young plants on November, adult ones in June, and senile ones in August. This species has an annual life-cycle in the field, starting with germ lings in early November. The differentiation of thallus is quite different from other species of genera in tribe Zonarieae, e.g. Zonaria and Homoeostrichus. Three different tissues, meristoderm, cortex and medulla are discerned. The outmost cortical one celled layer as a meristoderm produce cortex by unequal periclinal division. In the apical cell division, the primary inner cells are developed into 3-4 cell layered medulla of thallus. The distribution of this species extends from Korea to Shizuoka Peninsula (34°40'N) Japan, which is the type locality of this species.

• Animal Systematics, Evolution and Diversity
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• v.36 no.1
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• pp.55-59
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• 2020

Five species of Olethreutinae: four in Olethreutini, Olethreutes manoi (Kawabe, 1987), Olethreutes exilis Falkovitsh, 1966, Olethreutes komaii (Bae, 2005), and Proschistis marmaropa (Meyrick, 1907), and one in Grapholitini, Dichrorampha canimaculata Komai, 1979, are reported from Korea for the first time. Olethreutes komai is recorded out of Japan for the first time. The genus Proschistis is new to the Korean fauna. Proschistis can be characterized by the shapes of tegumen and juxta in the male genitalia. Brief descriptions and imaginal and genital photos are provided for the species. Distribution, host plants, and taxonomic notes when necessary are given for each species.

• Korean journal of applied entomology
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• v.52 no.1
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• pp.63-67
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• 2013

One species of the Duplachionaspis, D. divergens (Green, 1899) is newly recorded in the Korean fauna of armored scales (Diaspididae). The characters of this genus and species are here redescribed from Korean specimens. A key to species of Duplachionaspis from the East Palaearctic Region, photographs and information on the distribution and hosts of this species, are also provided.

• Animal Systematics, Evolution and Diversity
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• v.9 no.2
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• pp.281-292
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• 1993

Five species of lsotomidae from North Korea, including four new species lsotomurus griseus nsp., I. myohyangsanus nsp., Isotoma grana nsp., I. agrana n. sp. and one new record for North Korea, Folsomia octoculata Handschin, 1925 are described and discussed. The Korean Isotomidae, therefore, come to list 19 species in 6 genera including 15 species in six genera from South Korea.