• Korean Journal of Plant Taxonomy
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• v.38 no.2
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• pp.111-120
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• 2008

Taxonomic identities of Utricularia japonica and U. tenuicaulis were examined. Utricularia japonica was differed from U. tenuicaulis by having a scape narrower than the stem, rather sparsely arranged leaves, and more or less oblong leaves. Utricularia japonica has been known to occur widely in Korea due to the misidentification of U. tenuicaulis, which is distributed widely in southern and middle Korea. However, only one population of U. japonica was found in Chunjin Lake, near Kosung-gun, Kwangwon-Do, in Korea.

• Korean Journal of Plant Taxonomy
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• v.41 no.1
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• pp.1-9
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• 2011

Artemisia capillaris Thunb. and A. scoparia Waldst. & Kit. are classified by their root shape, leaf size and capitulum size. However, these characteristics are not nearly as useful when attempting to identify the two species owing to the continuous variation in them. Another important taxonomic characteristics is the habit, whether it is the subshrubs or perennial herbs of A. capillaris Thunb. or the annual or biennial herbs of A. scoparia Waldst. & Kit.. All observed specimens and living individuals in Korea are subshrubs or perennial herbs, and annual or biennial examples are not found. Therefore, it is considered that A. scoparia Waldst. & Kit. is not distributed in Korea.

• Korean Journal of Plant Taxonomy
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• v.35 no.4
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• pp.227-245
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• 2005

Numerical analysis using morphological characters was done in order to clarify taxonomic circumscriptions and identities of Korean endemic, Cirsium setidens (Dunn) Nakai, Cirsium chanroenicum Nakai, and Cirsium toraiense Nakai ex Kitam.. Principal components analysis of C. setidens and C. chanroenicum using 29 morphological characters and 12 leaves characters revealed one group which could not separate. Identity of C. toraiense could not be confirmed by the destruction of habitat, similarity of morphological diagnostic characters between many specimens identified C. toraiense including type specimen and C. japonicum var. ussuriense. In considering the variational patterns of morphological characters, it is strongly suggested that identities of C. setidens f. alba, C. setidens var. niveo-araneum, and C setidens var. pinnatifolium should be recognized, but C. chanroenicum var. lanceolata should be included to circumscription of C. setidens.

• Animal cells and systems
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• v.3 no.2
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• pp.133-141
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• 1999

To examine the taxonomic position and affinities of Isopyrum mandshuricum (Ranunculaceae) and related taxa, genetic analysis were carried out on the basis of isozyme patterns and ITS sequences. Molecular data, both isozyme patterns and ITS sequences suggest that I. mandshuricum is closely related to Enemion raddeanum than to Semiaquilegia adoxoides. The estimation of genetic identities by isozyme analysis reveals that I. manshuricum is genetically distant from E. raddeanum. The phylogenetic tree based on molecular data is rather congruent with the phenogram based on quantitative morphological characteristics, but not consistent with one based on qualitative morphological characteristics. Incongruencies between molecular and qualitative morphological data provide clues to re-evaluate several morphological features.

• Korean Journal of Plant Taxonomy
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• v.43 no.3
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• pp.227-235
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• 2013

Molecular phylogenetic studies were conducted to evaluate taxonomic identities and relationships among 16 species of the korean genus Iris L. Korean Iris was grouped by five clades. Series Laevigatae, Tripetalae, Laevigatae and Sibiricae was included to Clade I. Series Chinensis, and Easatae was composed to Clade II. Series Chinensis was included to Clade III. Series Chinensis was composed to Clade IV. Series Crossiris, Pumilae and Pardanthopsis was included to Clade V. Iris dichotoma, I. mandshurica and I. tectorum formed one clade, and it was located mostly in the basal group. I. minutiaurea and I. koreana was not formed independent clade, so it is not clear between them about taxonomic identities. Iris tectorum was established taxonomic system by Series Cossiris in Subgenus Crossiris. Series Chinensis (I. odaesanensis, I. minutiaurea, I. koreana, I. rossii var. latifoia, and I. rossii) was distinguished is clear by Series Chinensis (I. odaesanensis, I. minutiaurea and I. koreana) and Series Chinensis (I. rossii var. latifoia and I. rossii). The Genus Iris was divided into four subgenus (Limniris, Crossiris, Iris and Pardanthopsis). We thought that evolved to subgenus Limniris in subgenus Crossiris, iris and Pardanthopsis.

• Journal of Ecology and Environment
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• v.37 no.4
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• pp.387-393
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• 2014

We propose Cryptonemia asiatica sp. nov. from Korea and Japan. We used molecular analyses of plastid-encoded rbcL and morphological observations to resolve the taxonomic identities of C. lactuca from Korea, C. luxurians from Japan, and C. seminervis from Spain. Specimens of C. lactuca and C. luxurians fell within the same molecular phylogenetic clade (with 100% bootstrap support) and were clearly separated from specimens of C. luxurians collected from the type locality in Brazil. Our analyses demonstrated identical molecular sequences between C. seminervis specimens from Spain and C. lomation specimens from France. Morphological characteristics of the new species, C. asiatica include prominent midribs through the mid thallus, a cortex 4-6 cells thick, and a blade with undulate margins. Molecular evidence indicates that specimens from Korea and Japan previously assigned to C. lactuca and C. luxurians, respectively, should be reassigned to Cryptonemia asiatica. Binomial C. luxurians from Brazil should be resurrected as the independent species of Cryptonemia.

• Korean Journal of Plant Taxonomy
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• v.31 no.4
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• pp.359-373
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• 2001

One of Korean Typha species has been used two scientific names, T. angustifolia L. and T. angustata Bory et Chaubard without taxonomic examinations. Typha angustifolia has a longer females flowers than bracteoles and equal length of bracteoles and hairs in female flowers whereas T. angustata has equal length of female flowers and bracteoles and longer bracteloes than hairs in female flowers. In this study, the pattern of morphological variation of T. angustifolia in Korea is examined using numerical analysis to determine their taxonomical identities. Univariate analysis using morphological characters such as female flower length/bracteole length and bracteole lengh/hair length reveals that Korean T. angustifolia is composed of one group. The result of principal components analysis shows that Korean T. angustifolia is closely related to T. angustifolia distributed in Japan, Russia, and USA. Therefore, T. angustifolia L. (in Korea) is suggested as a legitimate scientific name.

• Korean Journal of Plant Resources
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• v.26 no.4
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• pp.457-462
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• 2013

Molecular study were conducted to evaluate taxonomic identities of Echinochloa crus-galli (L.) Beauv. and Echinochloa crus-galli var. echinata (Willd.) Honda in Dokdo. Echinochloa crus-galli complex of two species 26 individuals analyse based on nuclear ribosomal DNA (ITS region) and cpDNA (trnH-psbA, trnL-F). At a result, two species were same sequence. Characters the length of the lemma and the length of the awn traits were identity of the species was unclear. According to, Taxonomy treatments that is based on existent morphological characters should thinks again. On the other hand, in the case of ITS, Echinochloa crus-galli (L.) Beauv. and Echinochloa crus-galli var. echinata (Willd.) Honda at the Dokdo forms from other clades with individuals that is collected at land area and Ulleungdo. These result is showing that is flowing independent evolution trends.

• Korean Journal of Plant Taxonomy
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• v.45 no.2
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• pp.114-135
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• 2015

The taxa of Dryopteris subg. Erythrovariae are variable in morphology, resulting in taxonomic confusion in delimiting taxon boundaries. We examined the morphological characteristics of the Korean members of subg. Erythrovariae to clarify their taxonomic identities and relationships. The shapes of the blades, pinnae, and pinnule apices, the shapes and colors of the scales, and the positions of sori were useful for delimiting the Korean taxa of the subgenus. Based on the results of this study and evidence from previous studies, 13 taxa comprising 12 species and one variety of Dryopteris subg. Erythrovariae were recognized in Korea. Descriptions of all Korean taxa of the subg. Erythrovariae and a key to the species are provided. The descriptions presented here are based on field observations and the examination of some 1,000 specimens from the major herbaria of the world.

• Korean Journal of Plant Taxonomy
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• v.49 no.2
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• pp.118-126
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• 2019

The taxonomic rank of the tiny-leaved terrestrial orchid Cephalanthera subaphylla Miyabe & $Kud{\hat{o}}$ has been somewhat controversial, as it has been treated as a species or as an infraspecific taxon, under C. erecta (Thunb.) Blume [C. erecta var. subaphylla (Miyabe & $Kud{\hat{o}}$) Ohwi and C. erecta f. subaphylla (Miyabe & $Kud{\hat{o}}$) M. Hiro]. Allozyme markers, traditionally employed for delimiting species boundaries, are used here to gain information for determining the taxonomic status of C. subaphylla. To do this, we sampled three populations of five taxa (a total of 15 populations) of Cephalanthera native to the Korean Peninsula [C. erecta, C. falcata (Thunb.) Blume, C. longibracteata Blume, C. longifolia (L.) Fritsch, and C. subaphylla]. Among 20 putative loci resolved, three were monomorphic (Dia-2, Pgi-1, and Tpi-1) across the five species. Apart from C. longibracteata, there was no allozyme variation within the remaining four species. Of the 51 alleles harbored by these 17 polymorphic loci, each of the 27 alleles at 14 loci was unique to a single species. Accordingly, we found low average values of Nei's genetic identities (I) between ten species pairs (from I = 0.250 for C. erecta versus C. longifolia to I = 0.603 for C. falcata vs. C. longibracteata), with C. subaphylla being genetically clearly differentiated from the other species (from I = 0.349 for C. subaphylla vs. C. longifolia to 0.400 for C. subaphylla vs. C. falcata). These results clearly indicate that C. subaphylla is not genetically related to any of the other taxa of Cephalanthera that are native to the Korean Peninsula, including C. erecta. In a principal coordinate analysis (PCoA), C. subaphylla was positioned distant not only from C. falcata, C. longibracteata, and C. longifolia, but also from C. erecta. Finally, K = 5 was the best clustering scheme using a Bayesian approach, with five clusters precisely corresponding to the five taxa. Thus, our allozyme results strongly suggest that C. subaphylla merits the rank of species.