• Korean Journal of Plant Taxonomy
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• v.34 no.4
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• pp.321-333
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• 2004

We researched fruit wall anatomical characters about the seven taxa of Krigia and the nearest one relative, Nothocalais cuspidata by making use of the fruit wall anatomy, and inferred systematical similarity. Among these characters, all species of the genus Krigia has identical characters in the shape of fruit and the number of rib, but showed specific differences in the shape of costa, the numbers of libriform fiber cell layers and fiber-sclereid cell layers in mesocarp, and development degree in these characters. Krigia biflora, K. cespitosa, K. occidentalis and K. wrightii have well developed libriform fiber cell, but K. dandelion, K. montana and K. virginica have undeveloped libriform fiber cell, and mostly consist of fiber-sclereid cell layers. According to the fruit wall anatomical characters, K. biflora which belonged to sect. Krigia in the previous classification system is more similar to sect. Cymbia than sect. Krigia.

• Korean Journal of Plant Taxonomy
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• v.39 no.1
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• pp.24-28
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• 2009

The chromosome morphology of two Korean Lactuca (L. indica, L. triangulata) is reported herein. The chromosome number and karyotype of a naturalized plant, L. scariola are reported for the first time. The basic chromosome number was x = 9. Polyploid forms were not recorded. The karyotypes of L. indica, L. scariola, and L. triangulata were 2 n = 18 = 2 m+ 7 sm, 2 n = 18 = 1 m + 6 sm+ 2 st, 2 n = 18 = 2 m + 5 sm+ 2 st, respectively. Both L. indica and L. triangulata had satellites at the ends of their short arms. The haploid genome lengths of L. indica, L.scariola, and L. triangulata were $56.3{\mu}m$, $35.3{\mu}m$, and $72.5{\mu}m$ respectively. Each chromosome length of naturalized L. scariola was $2.7-5.2{\mu}m$; the smallest among Korean Lactuca. The chromosome lengths of L. indica and L. triangulata were $4.7-7.6{\mu}m$ and $2.9-7.9{\mu}m$, respectively. The karyotype of L. scariola differed from that of L.indica and L.triangulata both of which belong to sect. Tuberosae. Therefore, L. scariola is thought to belong to sect. Lactuca subsect. Lactuca.

• Korean Journal of Plant Taxonomy
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• v.43 no.2
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• pp.106-117
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• 2013

Using scanning electron microscope (SEM), we examined the trichomes on leaf and petiole and the epicuticular waxes on leaf surfaces for a total of 27 taxa representing two subtribes, Fragariinae and Potentillinae, of tribe Potentilleae (Rosaceae) in Korea. Four types of trichomes on adaxial and abaxial surface of leaves and petioles were identified. Type I (conical hirtellous) is the most common trichome type found in the majority of taxa in Fragariinae and Potentillinae. Type II (verruculose conical hirtellous) can be found only in Potentilla cryptotaeniae of sect. Conostylae of Potentillinae. Potentilla chinensis complex (sect. Conostylae) and P. egedii (sect. Letostylae) have type III trichome (crispate villous), while type IV (floccose villous) can be found in two species in sect. Conostylae, P. nivea and P. discolor. Both woolly hairs and conical hirtellous exist together in types III and IV. The same type of trichomes in leaves and petioles can be found across different subtribes and sections. In addition, different types of trichomes can be found even in a single species. Among the taxa which have type I trichome, the majority of subtribe Fragariinae and P. centrigrana and P. dickinsii complex have well developed epicuticular waxes on the surface of leaves. Sharing epicuticular waxes among the taxa across different subtribes appears to be correlated with their similar geographical distribution and ecological conditions. However, molecular phylogenetic study implies that the existence of epicuticular waxes could be also due to phylogenetic signal.

• Korean Journal of Plant Taxonomy
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• v.42 no.3
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• pp.207-210
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• 2012

Hylodesmum laxum (Candolle) H. Ohashi & R. R. Mill subsp. laxum was recorded from Korea. The species is widely distributed in S. E. Asia, but in Korea the plant was the first found in the evergreen forest of Seogwipo-si in Jeju-do. Hylodesmum H. Ohashi & R. R. Mill was raised as a separate genus recently based on Desmodium sect. Podocarpium Benth. Except for two species, all Korean species included in the former Desmodium are classified into the genus Hylodesmum. A key to and enumeration of the Korean species of Hylodesmum are provided.

• Korean Journal of Plant Taxonomy
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• v.36 no.3
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• pp.209-216
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• 2006

Arisaema thunbergii supsp. geomundoense, a new taxon in Arisaema sect. Tortuosa subsect. Flagellarisaema (Araceae), from Is1. Geomun-do, Dadohae National Park, Korea, is described. It is distinct from subsp. thunbergii in having bright purple enlargement at the base of spadix appendage, and in having wrinkled enlargement at the base of spadix appendage from subsp. urashima.

• Korean Journal of Plant Taxonomy
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• v.42 no.4
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• pp.275-277
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• 2012

Carex kamagariensis K. Okamoto was found in throughout the nation. This species is distinguished from other related taxa in Carex sect. Mitratae by pistillate scales with a long arista and achenes constricted above in the middle. A new Korean name, 'Jom-mok-po-sa-cho', is based on its small size and floral character similarity to C. genkaiensis. In this study, a description, illustrations and habitat photos of the species are provided. The key of its related species is also provided.

• Korean Journal of Plant Taxonomy
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• v.37 no.1
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• pp.61-78
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• 2007

The general morphological characters of Lysimchia sect. Spicatae were reviewed. From the results, numerical analyses were conducted based on 34 morphological characters from 14 populations of three species in Korea in order to investigate the key characters among the treated taxa and taxonomic delimitation and to discuss the systematic relationship. Habitat, leaf apices, presence or absent of hair on leaves, stipules, stems and bracts, branch of stems, kind of hair on floral axis and pedicels, shape of florescens were important diagnostic characters to identify the species. The relationship between Lysimachia clethoides and L. barystachys was more close than that of L. fortunei based on the quantitative characters. Also, a new key was made up from the result.

• Korean Journal of Plant Taxonomy
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• v.44 no.4
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• pp.247-249
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• 2014

A newly naturalized plant, Carex scoparia Schkuhr ex Willd. var. scoparia, was found in Mt. Hanseok, Injegun, Gangwon-do, Korea. It belongs to sect. Ovales Kunth and had been known from North America, and was introduced into Europe and New Zealand. This species distinguished from related taxa in Asia, Carex maackii Maxim. and Carex leporina L., by pistillate scales lanceolate and having large perigynia. We propose the new Korean name, 'Han-seok-sa-cho', based on its first collecting place. We also provide descriptions for morphological characters, illustrations, photographs and keys to allied taxa.

• Korean Journal of Plant Taxonomy
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• v.45 no.4
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• pp.380-390
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• 2015

The morphological characters were observed in six taxa in the genus Dioscorea of Korea (D. polystachya, D. japonica, D. nipponica, D. quinqueloba, D. tenuipes, and D. dokoro). The underground structure and the formation of bulbil were useful characters for separating sect. Enanatiophyllum from sect. Stenophora. The important characters for discriminating taxonomic entities were as follows: the position of the anther and the shape of the pistil in the microstructural characters, including the protuberance of the base of the petiole, the shape and color of the flower, the shape of the fruit, and the shape of the seed wing. Based on the results, a key to Korean Dioscorea is provided and the distribution of these species in Korea is described.

• Korean Journal of Plant Taxonomy
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• v.34 no.2
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• pp.97-118
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• 2004

A comparative anatomical and ultrastructural study was undertaken to investigare on the leaf epidermis by light microscopy (LM) and scanning electron microscopy (SEM). On the basis of results from this study, it was grasped major characters of taxa and variation range of each character on the level of species, section and subgenus respectively. The shape of leaf epidermal cell was oblong to linear, which was varied by each taxon. Epidermal cell of taxa in sects. Microscordum, Anguinum, and Rhizirideum, which had wide leaf blade, oblong instead of linear shape in others examined taxa in this study. The leaf of taxa in sect. Anguinum was hypostomatic, while the rest of taxa had amphistomatic leaf. This was also one of characters which could discriminate taxa of sect. Anguinum from others. The guard cell in investigated taxa had not so much variation in the respect of its size. The number of stomata per unit area reduced by increasing size of epidermal cell, the fewest number of stomata per unit area was found in the taxa of sect. Anguinum. The type of stomatal apparatus of observed all taxa was anomocytic. It was found to know ultrastructural variation in the epidermal cell, like as patterns of sculpture on the cell wall, and features of deposition of wax by SEM. There were no depositions of wax in the taxa of sect. Microscordum and Anguinum, but fine thread-like structures which were parallel or cross to axis was found on the surface of epidermal cell respectively. The patterns of sculpture on the cell were prominent straight in sects. Recticulato-bulbosa and Rhizirideum, discontinuous line in the sect. Oreiprason. The epicuticular wax had been deposited on the surface of its epidermal cell in all taxa except sects. Microscordum and Anguinum.