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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 31, Issue 4 - 00 2001
Volume 31, Issue 3 - 00 2001
Volume 31, Issue 2 - 00 2001
Volume 31, Issue 1 - 00 2001
Selecting the target year
Taxonomic reconsideration of Lactuca hallaisanensis H. Lév.
Pak, Jae-Hong ; Kim, Young-Ok ; Choi, Kyung ;
Korean Journal of Plant Taxonomy, volume 31, issue 4, 2001, Pages 311~319
In order to evaluate taxonomic status of Latcuca hallaisanensis H.
., an endemic species of the Jeju-do Island, we investigated fruit wall structure and chromosome morphology. The fruit wall structure had 10-11 obtuse costae in the transverse section. The costa was wholly occupied by libriform fiber cells, and the underlying fibersclereid tissue was only one to three cells layers thick. Also, the intercosta lacked fiber-sclereid layers. Somatic chromosome numbers and karyotype of Latcuca hallaisanensis were recorded for the first time. This diploid species (2n=10) with the same basic number of x=5 has the total chromosome length
and the length of each chromosome falls in
. It possess the karyotype complement i.e., 3sm+2st and a characteristic chromosome pair (No. 1 and 2) with a secondary constriction at the distal portion of the short arms. The overall similarity in external morphology (involucre, achene etc), chromosome morphology as well as in fruit wall anatomy between Lactuca hallaisanensis and Crepidiastrum s. lat. clearly indicated that this species should be treated as Crepidiastrum, rather than Lactuca.
Some opal phytoliths diagnostic characters of Oryza leaves
Whang, Sung Soo ; Kim, Kyungsik ;
Korean Journal of Plant Taxonomy, volume 31, issue 4, 2001, Pages 321~341
Phytoliths of leaf blades of Oryza were studied by light and scanning electron microscopy in order to assign the diagnostic character and taxonomic key for the genus. Some phytoliths such as stomatal apparatus, long-cell and short-cell, existing at the same position on the abaxial side of leaf blade, were intensively investigated because of their various forms documented in a previous study. These characters have value either for testing infrageneric classification or for identifying taxa within the genus. Stomatal phytolith is formed by integration of several kinds of sources, such as the guard and subsidiary cell and the papillae. The stomatal phytolith, characterized by not only the absence and presence of phytolith originated by the papillae developed on the guard and subsidiary cell but also their pattern of arrangement, shows various morphologies, and these features have congruent with the infrageneric classification such as section and/or series. Long-cell phytolith is characterized by the absence/presence, arrangement and morphology of phytoliths originated by the papillae on the cell surface. These features may hardly have any systematic relevance within the genus, but contain some informations for identifying of species. All of short-cell phytoliths found are silica body. They form various shapes like cross, bilobate, saddlelike and trilobate, and these features are consistent with infrageneric classification such as section and/or series. Also, some characters, the absence/presence of band of short cell phytolith within costal strip, the absence/presence of saddlelike phytolith within intercostal strip and the number of band of short cell phytolith within costal strip are various according to taxa, but these features do not fall into infrageneric classification. Some taxonomic keys on the phytoliths of stomatal, long-cell and short-cell were developed by their features, and the agreement between these characters and infrageneric classifications was also discussed.
Hybridization in Aconitum subgenus Aconitum at Mt. Sobaek in Korea
Lim, Chae Eun ; Park, Chong-Wook ;
Korean Journal of Plant Taxonomy, volume 31, issue 4, 2001, Pages 343~358
We have examined the pedicel pubescence and other major morphological characters of 11 putative hybrid populations of Aconitum subgn. Aconitum at Mt. Sobaek to understand their origin. These populations show very complicated patterns of variation in pedicel pubescence ; they contain individuals having pedicels (1) completely glabrous, (2) with few micropapillate curved hairs near the receptacle, (3) moderately pubescent with micropapillate curved hairs from middle to upper portion, (4) sparsely pubescent with a mixture of micropapillate curved hairs and smooth-surfaced spreading glandular hairs near the receptacle, and (5) moderately pubescent with both types of hairs but from middle to upper portion. All five types of individuals co-occur in most populations with varying proportions. These results, in conjunction with evidence from the analysis of other major morphological characters, suggest that the populations at Mt. Sobaek were derived from the multiple hybridization events involving A. kusnezoffii, A. japonicum subsup. napiforme, and A. jaluense subsp. jaluense. In addition, the absence of "typical" forms of these putative parental taxa in Mt. Sobaek area suggests that repeated introgression has probably occurred in these populations.
Taxonomic examination of Typha angustifolia L. in Korea
Kim, Changkyun ; Shin, Hyunchur ; Choi, Hong-Keun ;
Korean Journal of Plant Taxonomy, volume 31, issue 4, 2001, Pages 359~373
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.
Unrecorded and naturalized plants in Korea(XVII)
Kil, Ji-Hyun ; Suh, Min-Hwan ; Park, Soo-Hyun ;
Korean Journal of Plant Taxonomy, volume 31, issue 4, 2001, Pages 375~382
Three naturalized taxa in Korea such as Scleranthus annuus L., Verbena bonariensis L. and Hordeum jubatum L. were newly recorded. Short descriptions and illustrations for the these species were provided. Especially, Scleranthus L. is first recorded as a new genus of Korean flora.
One unrecorded species from Korea: Suaeda malacosperma Hara
Shim, Hyun-Bo ; Chung, Joo-Young ; Choi, Byoung-Hee ;
Korean Journal of Plant Taxonomy, volume 31, issue 4, 2001, Pages 383~387
One unrecorded species of Suaeda is found from the western and southern coast of Korea. The morphological characteristics and habitat of the plant are described. The species is distinguished from the other Korean species in the genus by its thin and broad leaves and the stellate shape of fruits.