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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Plant Taxonomy
Journal Basic Information
Journal DOI :
The Plant Taxonomic Society of Korea
Editor in Chief :
Volume & Issues
Volume 40, Issue 4 - Dec 2010
Volume 40, Issue 3 - Sep 2010
Volume 40, Issue 2 - Jun 2010
Volume 40, Issue 1 - Mar 2010
Selecting the target year
Endless debates on the extant basal-most angiosperm
Kim, Sang-Tae ;
Korean Journal of Plant Taxonomy, volume 40, issue 1, 2010, Pages 1~15
Recognizing a basal group in a taxon is one of the most important factors involved in understanding the evolutionary history of that group of life. Many botanists have suggested a sister to all other angiosperms to understand the origin and rapid diversification of angiosperms based on morphological and fossil evidence. Recent technical advances in molecular biology and the accumulation of molecular phylogenetic data have provided evidence of the extant basal-most angiosperm which is a sister to all other angiosperms. Although it is still arguable, most plant taxonomists agree that Amborella trichopoda Baill., a species (monotypic genus and monotypic family) distributed in New Caledonia, is a sister to all other extant angiosperms based on evidence from the following molecular approaches: 1) classical phylogenetic analyses based on multiple genes (or DNA regions), 2) analyses of a tree network of duplicated gene families, and 3) gene-structural evidence. As an alternative hypothesis with relatively minor evidence, some researchers have also suggested that Amborella and Nymphaeaceae form a clade that is a sister to all other angiosperms. Debate regarding the basal-most angiosperms is still ongoing and is currently one of the hot issues in plant evolutionary biology. We expect that sequencing of the whole genome of Amborella as an evolutionary model plant and subsequent studies based on this genome sequence will provide information regarding the origin and rapid diversification of angiosperms, which is Darwin's so called abominable mystery.
The petiole anatomy of the genus Spiraea L. (Rosaceae) in Korea
Lee, Jeong-Ho ; Kwon, Oh-Woung ; Jang, Tae-Soo ; Roh, Hee-Seon ; Hong, Suk-Pyo ;
Korean Journal of Plant Taxonomy, volume 40, issue 1, 2010, Pages 16~26
The petiole anatomy of three sections (sects. Calospira, Chamaedryon, and Spiraria) in the genus Spiraea (Rosaceae), which are distributed/cultivated in Korea, was studied and described in details. The vascular bundle system of the distal, medial, and proximal parts of the petiole were studied using LM with the aim of documenting any differences in vascular anatomy. Significant variation of anatomical characters was found in petiole shape (dichotomy, lens or subcircular in outline), presence of two distinct lateral wings, the thickness of epidermis, number of vascular bundles, length of ventral axis, length of dorsiventral axis, width of median vascular bundle, and length of median vascular bundle. All features were compared and we concluded that petiole anatomical characters can be useful for providing diagnostic features to distinguish the studied taxa. A key for identifying the Spiraea taxa in Korea based on their petiole anatomical characters is also provided.
Taxonomic study on the capitulum morphology of Korean Artemisia (Compositae)
Park, Myung-Soon ; Hong, Ki-Nam ; Eom, Jeong-Ae ; Chung, Gyu-Young ;
Korean Journal of Plant Taxonomy, volume 40, issue 1, 2010, Pages 27~42
This study was intended to investigate the capitulum morphology and to evaluate its taxonomic importance within the 23 taxa of Korean Artemisia L. The Korean Artemisia was classified into sterile subg. Dracunculus and fertile subg. Artemisia by the fertility of the disk florets, which is the traditional diagnostic character of subgenera. There are sections in subg. Artemisia: sect. Absinthium with a densely, sparsely hairy receptacle, and sect. Abrotanum and sect. Artemisia with a glabrous receptacle. However, A. fukudo and A. sacrorum belonging to sect. Abrotanum, and A. viridissima belonging to sect. Artemisia were observed to have sparsely hairy receptacles. Therefore, the presence of hair on a receptacle, which is now regarded as a key character distinguishing sections, has to be reevaluated. The whole shape and size of the capitulum, the characteristic of the stigma apex, the hair on the involucral bract, and the shape of the central or peripheral floret are thought to be the most valuable characters to consider in recognizing species.
Taxonomic review of Impatiens furcillata Hemsl. (Balsaminaceae)
Ji, Seong-Jin ; Kim, Yoon-Young ; Oh, Byoung-Un ;
Korean Journal of Plant Taxonomy, volume 40, issue 1, 2010, Pages 43~49
The taxonomic entity and morphological characteristics of Impatiens furcillata were reviewed based on the original description and the type specimen. As a result, I. furcillata, by having glabrous stems, descending and glabrous peduncles, and pinkish white flowers, is strikingly distinguishable from other taxa of Korean Impatiens. Both I. hypophylla var. koreana and I. kojeensis are treated as synonyms of I. furcillata, for their morphological characteristics, were the same as those of I. furcillata. In addition, the Korean name for I. furcillata was changed to Cheo-jin-mul-bong-seon' instead of 'San-mul-bong-seon'.
The nutlet morphology of the genus Glechoma L. (Lamiaceae) and its related taxa
Jang, Tae-Soo ; Hong, Suk-Pyo ;
Korean Journal of Plant Taxonomy, volume 40, issue 1, 2010, Pages 50~58
The nutlet morphology and pericarp structure of 14 taxa (4 taxa of the genus Glechoma and related taxa) were studied by light and scanning electron microscopy, and a detailed description of nutlet morphological features for all examined taxa is provided. The shape of the nutlet is ovate to elliptic. Its size is 1.36-3.83 mm in length and 0.80-2.65 mm in width. The largest one was found in Marmoritis rotundifolia, while the smallest one was in Agastache nepetoides. Three different surface types were recognized in the studied taxa based on differences in cell outline and cell boundary relief (rectangular, pitted, and ridged negative reticulate-cell). Three types of trichome (uni-cellular non-glandular trichome, multi-cellular non-glandular trichome, and peltate glandular trichome) were distributed in the nutlets. The pericarp is formed in three layers (i.e., exocarp, mesocarp, and endocarp including sclenchyma tissue), and the pericarp in the studied species is 39.0-237.5
thick. The morphological and anatomical features (the nutlet shape, surface type, and trichome distribution) in the genus Glechoma and related taxa are described and discussed.
Impatiens violascens (Balsaminaceae): A new species from Korea
Kim, Yoon-Young ; Ji, Seong-Jin ; Hong, Wan-Pyo ; Oh, Byoung-Un ;
Korean Journal of Plant Taxonomy, volume 40, issue 1, 2010, Pages 59~64
Herein is described a new species of Impatiens violascens B.U. Oh & Y.Y. Kim (Balsaminaceae) discovered on Bohyeon Mountain in Yeongcheon-si, Gyeongsangbuk-do, Korea. The new species is distinct from a closely-related species, I. textorii, by having a flower half the size that of I. textorii, sharply narrowed lower sepal, one half- to one time-coiled spur, and distal lobes of elliptical type laterally united petals. The key to these two species is provided.
A new record for the Korean flora: Rubus nishimuranus Koidz. (Rosaceae)
Kim, Chan-Soo ; Kim, Soo-Young ; Moon, Myung-Ok ;
Korean Journal of Plant Taxonomy, volume 40, issue 1, 2010, Pages 65~70
Rubus nishimuranus Koidz. (Rosaceae), a species previously unrecorded for the Korean flora, was collected in the lowlands near a beach on Jeju Island. This species was known to be distributed only in Japan. R. nishimuranus differs from R. trifidus Thunb. ex Murray, by having leaves 3-foliate or sometimes the upper leaflets connate below and from R. hirustus Thunb. by having leaves ternate and the leaflets sessile or nearly so. The somatic chromosome number was 2n = 2x = 14 and the size of chromosomes ranged 1.2-2.5
. The chromosome complement of this species consisted of three pairs of metacentrics (chromosomes 1, 2 and 5), submetacentrics (chromosomes 3, 6 and 7) and a pair of subtelocentrics (chromosome 4).
The first record of Thyrocarpus glochidiatus (Boraginaceae) in Korea
Yang, Jong-Cheol ; Lee, You-Mi ; Park, Soo-Hyun ; Ha, Sang-Gyo ;
Korean Journal of Plant Taxonomy, volume 40, issue 1, 2010, Pages 71~73
We report for the first time a taxon of the genus Thyrocarpus (Boraginaceae) from Daecheongdo, Ongin-gun, Incheon-si in Korea. This taxon appears to be Thyrocarpus glochidiatus Maxim., previously known from China. The new Korean name, 'Dae-Cheong-Ji-Chi', was given considering the name of discovered location. A description, an illustration and a photograph were given.
Wild edible flowering plants of the Illam Hills (Eastern Nepal) and their mode of use by the local community
Ghimeray, Amal Kumar ; Sharma, Pankaja ; Ghimire, Bimal ; Lamsal, Kabir ; Ghimire, Balkrishna ; Cho, Dong-Ha ;
Korean Journal of Plant Taxonomy, volume 40, issue 1, 2010, Pages 74~77
The Illam district, situated in the extreme North Eastern part (Latitude 26.58N and 87.58E Longitude) of Nepal, is a hot spot for floral diversity. The study of wild edible plants of this region was an attempt to highlight the types of wild flowering plants found there and mode of use by the people of the Illam hills. In this respect, a survey of natural resources of some of the representative regions of the district was undertaken and more than 74 major varieties of plant species were found to be used frequently by the people of the hills. The rich diversity occurring in Dioscoriaceae, Moraceae, Rosaceae, Myrtaceae, Poaceae, Urticaceae and Arecaceae provided the wild angiospermic species commonly used by the people of the hills.