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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean Journal of Plant Taxonomy
Journal Basic Information
Journal DOI :
The Plant Taxonomic Society of Korea
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Volume & Issues
Volume 45, Issue 4 - Dec 2015
Volume 45, Issue 3 - Sep 2015
Volume 45, Issue 2 - Jun 2015
Volume 45, Issue 1 - Mar 2015
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Taxonomic reexamination of two Huperzia species (Lycopodiaceae) in Northeast Asia
Lim, Jina ; Yun, Na Rae ; Lee, Byoung-yoon ; Sun, Byung-Yun ;
Korean Journal of Plant Taxonomy, volume 45, issue 4, 2015, Pages 299~305
DOI : 10.11110/kjpt.2015.45.4.299
A comparison of the external morphology and spores clearly distinguished Huperzia lucidula (Michaux) Trevis. in northeast Asia and North America in terms of leaf shape, leaf margin, distribution of stomata on leaves, and spore shape. Therefore, the northeast Asian plants should be treated as a separate species, H. asiatica (Ching) B.-Y. Sun & J. Lim. In addition, we believe that H. javanica (Sw.) C. Yang, regarded as conspecific or infraspecific with H. serrata (Thunb.) Trevis., is a distinct species based on the presence of a leaf petiole and serrated leaf margins, and the shape of the gemmiferous branchlets.
A new combination for Saxifraga octopetala (Saxifragaceae) and its phylogenetic relationship
Kim, Yong-In ; Cho, Seong Hyun ; Kim, Bo-Yun ; Lee, Jung-Hoon ; Kang, Dae-Hyun ; Kim, Soonok ; Doudkin, Roman V. ; Kim, Young-Dong ;
Korean Journal of Plant Taxonomy, volume 45, issue 4, 2015, Pages 306~317
DOI : 10.11110/kjpt.2015.45.4.306
This study was conducted to address the taxonomic status of the Korean endemic species Saxifraga octopetala, which is sometimes considered conspecific to Micranthes manchuriensis. Extensive molecular phylogenetic analysis using nrITS sequences as well as morphological examination of type specimens of the two species were undertaken to ascertain the phylogenetic position and species delimitation of S. octopetala. In the resulting nrITS trees, a total of 65 accessions representing S. octopetala grouped together and nested within the Micranthes clade, exhibiting a close relationship with M. nelsoniana and M. manchuriensis. Multiple accessions of M. manchuriensis collected from China and Russia also formed a clade, showing a sister group relationship with M. nelsoniana var. pacifica and M. fusca. The ambiguous species entity of S. octopetala is thought to have originated from Nakai's misinterpretation of Wilford's collection (type specimens of M. manchuriensis), which is a complex collection including an inflorescence of M. nelsoniana. In spite of apparent morphological similarity between S. octopetala and M. manchuriensis, they differ in the presence and absence of underground stolons. The distinct position of S. octopetala within the Micranthes clade on the nrITS tree suggests that it should retain species status in Micranthes. Thus a new combination (Micranthes octopetala) is proposed.
A new species of Fimbristylis (Cyperaceae): F. jindoensis J. Kim & M. Kim
Kim, Jonghwan ; Kim, Muyeol ;
Korean Journal of Plant Taxonomy, volume 45, issue 4, 2015, Pages 318~322
DOI : 10.11110/kjpt.2015.45.4.318
A new species, Fimbristylis jindoensis J. Kim & M. Kim, is herein named and described. It is found on wet lowland mountain slopes in Jindo-gun, Jeollanam-do, Korea. Fimbristylis jindoensis shares several characteristics (long-creeping rhizomes, oblong spikelets, brown scales, and three-sided achenes) with the related species F. pierotii Miq. It is, however, distinct from F. pierotii, which has terete culms with five to six furrows that are 9-48 cm tall, flowers in June to July, a dry grassland habitat, fewer than ten spikelets, and simple anthela inflorescences. In contrast, the new species has shallow furrowed oval culms which are 57-93 cm tall, flowers in July to August, a wet mountain habitat, more than twenty spikelets, and compound anthela inflorescences.
Pollen morphology of the genus Aruncus L. (Rosaceae)
Ok, Min-Kyoung ; Hong, Suk-Pyo ;
Korean Journal of Plant Taxonomy, volume 45, issue 4, 2015, Pages 323~331
DOI : 10.11110/kjpt.2015.45.4.323
Pollen morphological characteristics of 7 taxa of the genus Aruncus L. (Rosaceae) were examined using scanning electron microscopy (SEM) to evaluate the taxonomic implication within the genus. Aruncus pollen grains were monad, tri-colporate with granular membranes, small in size (
), amb is sub-circular to circular, suboblate to prolate-spheroidal in shape (P/E = 0.68-1.70). The sexine ornamentation in all studied taxa was basically striate but existence of perforation (striate-perforate: A. dioicus, A. dioicus var. acuminatus, A. dioicus var. astilboides, A. dioicus var. pubescens, A. dioicus var. vulgaris; striate-pstilate: A. dioicus var. aethusifolius, A. gombalanus) and the widths of muri and grooves varied according to the taxa. In particular, relatively short, and sharply crested muri being a distinct feature of A. dioicus var. acuminatus. As a result, the various combination of each pollen characteristics could be useful to identify the some taxa of the genus Aruncus.
Taxonomy of tribe Neillieae (Rosaceae): Physocarpus
Oh, Sang-Hun ;
Korean Journal of Plant Taxonomy, volume 45, issue 4, 2015, Pages 332~352
DOI : 10.11110/kjpt.2015.45.4.332
The tribe Neillieae, a small group of about 18 species in the Rosaceae, comprises three taxonomically difficult genera, Neillia, Physocarpus, and Stephanandra. The tribe, characterized by lobed leaves with persistent or deciduous stipules and ovoid, shiny seeds with copious endosperm, is strongly supported as a monophyletic group by a variety of lines of molecular evidence. Due to the high amount of morphological variation across the three genera and the species in tribe Neillieae, conflicting classification schemes and numerous species have been proposed over the past three centuries. However, no comprehensive systematic study of the group, including all species across their geographic ranges, has ever been undertaken. As part of a taxonomic revision of tribe Neillieae, a revision of Physocarpus based on the morphological examination of herbarium specimens, including types, and field observation is presented. Artificial keys, comprehensive nomenclatural treatments, descriptions, distribution maps, and lists of specimens examined are provided. Six species in Physocarpus are recognized. A lectotype is here designated for the following species: Opulaster pubescens, Opulaster ramaleyi, Spiraea opulifolia var. parvifolia, Spiraea opulifolia var. tomentella, Physocarpus michiganensis, and Physocarpus missouriensis.
Spatial and temporal variation on fruit set in Epipactis thunbergii (Orchidaceae) from southern Korea
Chung, Mi Yoon ; Chung, Myong Gi ;
Korean Journal of Plant Taxonomy, volume 45, issue 4, 2015, Pages 353~361
DOI : 10.11110/kjpt.2015.45.4.353
Spatio-temporal variation in fruit set in orchids would affect long-term population viability and will influence genetic diversity over many generations. The aim of this study was to examine the breeding system of the nectariferous terrestrial orchid Epipactis thunbergii, to specifically determine levels of fruit set in terms of time and space under natural conditions. We examined pollination under natural conditions and conducted hand pollination experiments during a 2-year survey in four populations located along 1.5 km of coastal line in Jinguiri (rual village) [Jeollanam-do (province), southern Korea]. We found that, over a 2-year period, levels of percentage of fruit set were similar within patches of the four populations. By contrast, we detected significant differences in the percentage of fruit set among patches. We also found that plants with larger inflorescence size produced significantly more fruits than plants with fewer flowers. Over a 2-year period, the percentage of fruit set for E. thunbergii was similar but low (14.1%) compared to that averaged for eighty-four rewarding species (37.1%). However, an increase in fruit set was achieved by hand-pollinations: artificial self-pollination (90.5-95.2%), artificial geitonogamy (94.7-95.0%), and cross-pollination (artificial xenogamy, 91.3-91.4%). No emasculated flowers produced fruits and no automatic pollination was found in E. thunbergii. Our findings suggest that E. thunbergii is a self-compatible terrestrial orchid that depends on pollinators (insects) to achieve fruit set in natural habitats, and that local environmental conditions were similar over a period of 2 years in the study area. Our results also highlight the cryptic variation of fruit production in time, but more pronounced variability in space.
Two new and one unrecorded natural hybrids between Asplenium ruprechtii and related taxa (Aspleniaceae)
Lee, Chang Shook ; Lee, Kanghyup ; Yeau, Sung Hee ; Chung, Kyong-Sook ;
Korean Journal of Plant Taxonomy, volume 45, issue 4, 2015, Pages 362~368
DOI : 10.11110/kjpt.2015.45.4.362
Two new and one unrecorded hybrids of the genus Asplenium were newly found in Korea. They were proved to be hybrid based on intermediate morphology between putative parents. The first hybrid is
C.S. Lee & K. Lee (Aspleniaceae), nom. nov. (vernacular name: geo-mi-sa-cheol-go-sa-ri). This new hydrid is a cross between the Asian walking fern, A. ruprechtii and A. pekinens in Uiryeong-gil, Mt. Bukansan, Seoul, Korea. The other new one occurs in Mt. Seongsan in Yeoncheon-gun, Gyeonggi-do, Korea,
C.S. Lee & K. Lee, nom. nov. (vernacular name: san-kko-ri-go-sa-ri) which might have experienced multiple hybridization events between A. ruprechtii
A. trichomanes and A. incisum following the hybrid between A. ruprechtii and A. trichomanes. In addition, one unrecorded hybrid,
Kurata & Hutoh (vernacular name: geo-mi-dol-dam-go-sa-ri), reported first from Japan, is found in natural habitats in Do-dong, Daegu-si, and is a hybrid, between the Asian walking fern and A. sarelli. These hybrid taxa grow in sympatric regions with both putative parental species. The diagnostic characters for each taxon and evidence for their hybridization have been suggested. Descriptions, illustrations, and photographs of these hybrid taxa in their habitats are provided from Korea.
Comparative seed morphology of the tribe Alsineae (Caryophyllaceae) in Korea and its taxonomic implications
Song, Jun-Ho ; Kim, Ju-Mi ; Ok, Min-Kyoung ; Hong, Suk-Pyo ;
Korean Journal of Plant Taxonomy, volume 45, issue 4, 2015, Pages 369~379
DOI : 10.11110/kjpt.2015.45.4.369
The seed morphology of 25 taxa (8 genera) of Alsineae (Alsinoideae, Caryophyllaceae) in Korea was examined using stereo (SM) and scanning electron microscopy (SEM) in order to evaluate their diagnostic values and taxonomic implications. Circular, comma-shaped, ellipsoid, ovate, pyriform, reniform, and sub-circular seed shapes were identified. The seeds of the examined taxa range from 0.28 to 4.10 mm in length and from 0.33 to 3.10 mm in width; the smallest one was found in Sagina japonica, while the largest was in Honkenya peploides var. major. A hilar appendage was found in Cerastium, Honkenya, Moehringia, and strophioles were only observed in the genus Moehringia. Based on the examination of epidermal cells of the seed surface, four micromorphological types can be distinguished, viz., the colliculate-papillate (Col-Pap), colliculate-columellate (Col-Cll), colliculate-simple (Col-Sim), and smooth (Sm) types. Descriptions of the testa shape, margin, and the degree of elevation of the anticlinal cell walls, and the outer periclinal cell walls are summarized for the tribe. Taxonomic implications of the seed micromorphological characters were also discussed, in comparison with an earlier taxonomic system.
A taxonomic study of the genus Dioscorea L. (Dioscoreaceae) in Korea based on morphological characters
Chung, Dae Hee ; Chung, Gyu Young ;
Korean Journal of Plant Taxonomy, volume 45, issue 4, 2015, Pages 380~390
DOI : 10.11110/kjpt.2015.45.4.380
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.
Choi, In-Su ; Kim, So-Young ; Choi, Byoung-Hee ;
Korean Journal of Plant Taxonomy, volume 45, issue 4, 2015, Pages 391~392
DOI : 10.11110/kjpt.2015.45.4.391