• Korean Journal of Plant Taxonomy
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• v.43 no.3
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• pp.196-207
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• 2013

As a recent infrageneric classification of Juncus (Juncaceae), Kirschner suggested two subgenera which are distinguished by the type of inflorescence and the absence/presence of bracteole along with 10 sections which are distinguished by the characters of the leaves, the position of the inflorescence, and types of stamens and seeds. However, an intensive morphological investigation on Korean Juncus has yet to be performed. We surveyed the morphological characters of 14 taxa distributed throughout the Korean peninsula, including one North Korean taxon. The quantitative and qualitative characters of rhizomes, leaves, inflorescences, flowers, fruits, and seeds were investigated on each taxon using about 950 specimens of Korean Juncus on loan from major Korean herbaria. As a result, we provide diagnostic characters with illustrations and a key to Korean Juncus.

• Korean Journal of Plant Taxonomy
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• v.40 no.3
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• pp.145-152
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• 2010

The external morphological characters of the Korean Oldenlandia were reviewed, and numerical analysis of 25 quantitative characters carried out to evaluate the delimitation of the taxa. Among the qualitative characters, the leaf shape, inflorescence, pilose of insde corolla, expansion of capsule apex, and seed shape were used to delimit 5 species of Korean Oldenlandia. As the result of principal component analysis of quantitative characters, O. corymbosa, O. hirsuta and O. strigulosa were evidently separated on a two-dimensional plot by PC1 and PC2, and O. brachypoda and O. diffusa slightly overlapped. However, O. brachypoda was distinctly delimited from O. diffusa by the shape of calyx lobe, the lengths of pedicel, filament and stigma. Also each of those two species was in a group of its own by cluster analysis.

• Korean Journal of Plant Taxonomy
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• v.48 no.4
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• pp.301-330
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• 2018

A morphological study of Korean Fimbristylis was conducted in order to clarify the taxonomical position and scientific names among species. It was determined that the anther size and style length are important characteristics for the species-level identification of Fimbristylis. It was confirmed that Fimbristylis ovata (Burm.f.) J. Kern, which is recorded in the literature but which has no sampling specimens in Korea, grows on the grassland on Marado Island. According to this study, the genus Fimbristylis in Korea is classified into a total of 21 taxa, including four sections, nineteen species, and two varieties.

• Korean Journal of Plant Resources
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• v.33 no.2
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• pp.116-129
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• 2020

The genus Sedum comprises about 400 taxa with worldwide distribution, and about 20 taxa of the genus Phedimus distributed from Asia to Europe. According to some taxonomists, Phedimus and Sedum are two separate genera of the family Crassulaceae; however, in Korea Phedimus has been treated as a subgenus Aizoon within the genus Sedum. This ambiguous taxonomic treatment of the genus Phedimus needs further confirmation. In the study, we investigated morphological characteristics such as the whole plant height, leaf morphology, and seed coat features of these two genera. We believe that these characters are very important to distinguish Phedimus and Sedum. The result indicated that the seed surface pattern was the most useful diagnostic character. The Sedum had a hexagonal pattern with a single nipple protrusion, whereas the Phedimus had a rectangular pattern with papilla on both ends. The results of this study strongly support the separation of Phedimus from Sedum and thus Phedimus need to be treated as an independent genus.

• Korean Journal of Plant Taxonomy
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• v.33 no.4
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• pp.435-454
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• 2003

The morphology of plants and scanning electro-microscopical features of fruits were examined to evaluate the taxonomic entities of Korean Adonis L. in sensu lato (Ranunculaceae). The species of Korean Adonis were readily diagnosed by the branching pattern of stem, the number of flowers, the bifurcation of leaf main axis, the number of tepals, the flowering periods in relation to leaf sprouting, and the number of stomata and the texture of fruit surface. This study demonstrates that there are three species, A. amurensis, A. pseudoamurensis, and A. multiflora., found in Korea. However, A. ramosa, which has been often claimed to be distributed in Korea, is not present in Korea.

• Korean Journal of Plant Taxonomy
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• v.43 no.4
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• pp.285-295
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• 2013

The genus Actinidia has been recorded as having total six taxa, composed of four species and two varieties, in Korea. However, its taxonomy remains complex because of disagreement on taxonomic characters used for species boundaries. Based upon morphological, anatomical, and palynological characters, we re-evaluated species delimitations in the genus Actinidia. Critical observation of wild populations and extensive herbarium materials including types were also carried out. It is generally considered that leaf thickness and shape, hair type and color were important diagnostic characters to identify species, but these characters were insufficient to be diagnostic characters because of their wide variation ranges. On the other hands, pith pattern, winter bud protrusion rate, scale leaf number, anther color, fruit shape, and maturity season were taxonomic significance. A. arguta var. platyphylla and A. arguta var. rufinervis have been identified by hair type and color, but these characters showed continuous variation in A. arguta. Therefore, two varieties are treated as synonyms of A. arguta. Consequently four species are recognized in Korea: A. polygama, A. kolomikta, A. rufa, and A. arguta. A key is provided, as well as complete descriptions of the species examined, including information on nomenclatural types, and synonymies.

• Korean Journal of Plant Taxonomy
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• v.40 no.2
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• pp.113-117
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• 2010

We examined the sixteen quantitative characters of Trapa and conducted principal component analysis for T. japonica Flerow and T. bispinosa Roxb. in South Korea. Trapa bispinosa has been recorded as 'Ma-reum (T. japonica Flerow)' in the Korean flora, but this taxon is distinct from T. japonica in terms of width, thickness and upper horns of its nuts. Principal component analysis (PCA) confirms the morphologically distinct status for the two species. We suggest the common name 'Keun-ma-reum' for Trapa bispinosa to the Korean flora.

• Korean journal of applied entomology
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• v.55 no.3
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• pp.197-203
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• 2016

Three newly recorded species of the genus Anteon Jurine (Hymenoptera: Dryinidae: Anteoninae), A. brachycerum (Dalman, 1823), A. confusum Olmi, 1991 and A. infectum (Haliday, 1837), are reported from South Korea. A revised identification key to the South Korean species, diagnosis, illustrations and photographs of the diagnostic characteristics are provided herein.

• Korean journal of applied entomology
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• v.56 no.3
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• pp.249-252
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• 2017

Eubroncus Yoshimoto, Kozlov and Trjapitzin, 1972 belonging to Mymaridae is newly recognized in South Korea based on E. prodigiosus (Yoshimoto, Kozlov and Trjapitzin, 1972). A diagnosis and photographs of the diagnostic characters are provided.

• Korean journal of applied entomology
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• v.57 no.1
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• pp.1-5
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• 2018

Tachinus (Tachinus) javanus Cameron is identified for the first time in the Korean Peninsula. Description, illustrations of habitus and diagnostic characters, and a key to the known species of Korean Tachinus Gravenhorst are provided. Tachinus (Tachinus) yezoensis Li is redescribed with male characteristics.