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선병윤,김철환,김태진,임동옥 ( Byung Yun Sun,Chul Hwan Kim,Tae Jin Kim,Dong Ok Lim ) 한국환경생물학회 1993 환경생물 : 환경생물학회지 Vol.11 No.1
This study was attempted to investigate the flora of Mt. Moak (794m). 605 kinds including 62 transplanted plants which belong to 120 families, 362 genera, 522 species, 2 subspecies, 72 varieties and 9 forms were collected from May 1987 to Oct. 1989. This area is regarded as the southernmost station of Spiraea salicifolia to date and as the northernmost station of Nanocnide japonica and Semiaquilegia adoxoides. In addition, Hylomecon vernale, Lindera sericea and Adoxa moschatellina have been located in this region. Floristically, Mt. Moak belongs to the South province (region) represented as Cephalotaxus koreana, Lindera, Meliosma, Ilex macropoda and Trachelospermum asiaticum var. intermedium.
경남 김해시 내동지구 택지개발에 따르는 식물생태계의 환경영향평가
정영호,선병윤 ( Yung Ho Chung,Byung Yun Sun ) 한국환경생물학회 1983 환경생물 : 환경생물학회지 Vol.1 No.1
The environmental impact assessment on terrestrial plant ecosystem was conducted at the site of Naedong, Kimhae designated for housing project. Surveying the site and referring to literatures, flora and vegetation, kinds of edible plants, distributional patterns of degree of green naturality and potential sun-light energy of this area were analyzed each other. The impact on terrestrial plant ecosystem by housing project was analyzed and some proposals were given to decrease the impact.
한국산 녹나무과 식물의 분류학적 연구 - 화서의 (花序) 형태 -
선병윤(Byung Yun Sun),정영호(Yung Ho Chung) 한국식물학회 1986 Journal of Plant Biology Vol.29 No.4
This study is attemped to discuss the taxonomic significances as have been raised up to now in the study of Lauraceous inflorescence. Lauraceous inflorescences are recognized as panicle, umbel, dichasium, or fascicle by various investigators. Reconsidering the inflorescence or existence of involucre, which has been accepted as important character in the present classification system, it is assumed that the study about them has not so far carried out a deliberate analysis over inflorescent morphology, nor has recognized the existence of involucre. Furthermore, all the materials examined in this study have fugacious or persistent involucres which are leafy, scaly or membraneous. Therefore, it was found that the kinds, fugacity or persistency of involucres are significant in the problems of classification of Lauraceae. Korean Lauraceous inflorescence has evolved into the direction of continuous reduction in its peduncle: from compound dichasium to capitate umbel.
한국산 목본식물에 (木本植物) 대한 계통분류학적 연구 - 목련과와 붓순나무과의 꽃의 형태
선병윤(Byung Yun Sun),정영호(Yung Ho Chung) 한국식물학회 1985 Journal of Plant Biology Vol.28 No.4
Floral morphology of Magnoliaceae and Illiciaceae in Korea is investigated. Magnoliaceae has long and elongate floral axis where numerous stamens and pistils are spirally arranged, whereas Illiciaceae has short floral axis and pistils are arranged in a single whorl on the axis. The stamens are basically similar in both families; winged and broad filament, prominant connective, long sporangium, and no clear limitation between fertile and sterile parts, which are primitive characters in stamen. The ovaries are the conduplicate type, in both, with decurrent stigma, stigmatic surface confined to stylar position, and no distinct style. Magnoliaceae has one locule and two ovules, whereas Illiciaceae has one locule and one ovule. The ovule is anatropous or hemianatropous, and has bitegmic integument and crassinucellate nucellus.
선병윤(Byung Yun Sun),김철환(Chul Hwan Kim),김경식(Kyung Sik Kim) 한국식물학회 1993 Journal of Plant Biology Vol.36 No.2
Comparative morphology of winter buds of 16 species of gymnosperms which belong to six families and 13 genera was investigated. All the species examined excet taxaceae had bracts and ovuliferous scales in female buds, and the bract was fused with ovuliferous scale in various degrees. Comparison of the modern conifers with fossil ones in the position of ovule and structure of bract-scale complex suggested that Taxaceae should be placed in Coniferales, rather than treating as a distinct order. The disposition of bract surrounding the ovules of Cephalotaxus and Torreya indicated that the origin of ovules had separate evolutionary line in spite of similar structure of female bud. The shape of microsporophyll in male bud was diverse among the species. The dehiscence of microsporangium was transverse in Abies and Tsuga, while longitudinal in other species. Descriptions and key to the species based on bud morphology were provided.
한국산 목본식물에 (木本植物) 대한 계통분류학적 연구 - 녹나무과의 외부 형태 -
선병윤 (Byung Yun Sun) 한국식물학회 1984 Journal of Plant Biology Vol.27 No.3
Floral structures of 11 korean lauraceous species belonging to six genera have been studied. Machilus is a primitive genus having relatively large bisexual flower, six tepals and staminodes in fourth whorl of stamen. The flowers of Nelitsea are highly reduced state as unisexual flower, six stames arranged to three whorls ans no staminode in the flower, so regared as more advanced group. Intrafamilial classification systems of Nakai (1939) and Pax (1891) are more reasonable but still have some discrepancies with results. The origin of tepals of this group has been a long controversial problem; whether the differentiation of tepals occur. Teratological study of Lindera erythrocarpa, inner tepals of this group must be originated from the staminode and outer tepals from leafy tepals. Although morphological differentiation does not sitll occur, inner and outer whorls of tepals are originated through different way.
선병윤(Byung Yun Sun),김태진(Tae Jin Kim),박정희(Jung Hee Park),김경식(Kyung Sik Kim) 한국식물학회 1994 Journal of Plant Biology Vol.37 No.1
Spore morphology of 14 species of Ophioglossaceae is examined, and descriptions and key based on spore morphology are provided. In addition, spores of one species of Angiopteris and three species of Osmunda are examined for comparision with those of Ophioglossaceae. Spore shape at proximal face is subtriangular or triquete in Botrychium and circular in Ophioglossum, Angiopteris and Osmunda. Based on the wall sculpturing patterns, three groups can be recognized within Botrychium, and the differences of wall sculpturing among these groups are smaller as compared to those among Botrychlum, Ophioglossum, Osmunda and Angiopteris. This result supports the previous infrafamilial system of Clausen, which was mainly based on the charateristics of vernation, habit, fertile and sterile segments of the leaf, and gametophyte. Spores of nine species of Ophioglossum which are circular in proximal face and fossulate or foveolate in wall sculpturing, are quite uniform as compared to those of Botrychium. Therefore they should be kept under a single genus rather than split into four genera suggested by Nishida (1952).
정영호,선병윤 ( Yung Ho Chung,Byung Yun Sun ) 한국환경생물학회 1988 환경생물 : 환경생물학회지 Vol.6 No.1
The aim of this research was to elucidate the flora of vascular plants in the mountain area of Mt. Balwang which is located in the central part of the Taebaeg mountains. The native flora of this area consists of 2 phyla, 5 classes, 42 orders, 71 families, 250 genera, 358 species, 4 subspecies, 66 varieties, and 6 forms. About 80% of plants distributed in this area are common elements in Korea, 12% are northern elements and 55% are southern elements. Seasonal percentage of the plants in this research area accordng to their flowering periods is 41% for spring, 43% for summer and 16% for autumn. Monthly percentage of these plants according to their flowering periods is closely related with temperature and rainfall. The forest zone of Mt. Balwang is the north temperate zone of Korea in which Taxus cuspidate, Tilia amurensis, Larix olgensis var. koreana are distributed.
한국산 고유식물의 종속지 - 3. 노루오줌속 (屬) 식물의 분류와 종간유연관계 (種間類緣關係)
정영호(Yung Ho Chung),선병윤(Byung Yun Sun),정영철(Young Cheul Chung) 한국식물학회 1983 Journal of Plant Biology Vol.26 No.2
The analysis in external morphology of Astilbe including three endemic species in Korea was undertaken. From this study, five species and three varieties of Astilbe in Korea were redescribed. Their scientific names and Korean names were also consulted. Korean Astilbe could be grouped in two Series-Series 1. Simplicifoliae; Astilbe simplicifoliae and Series 2. Compositae; A. taquetii, A. microphylla, A. chinensis var. davidii, A. divaricata, A. koreana. Interspecific relationships of eight taxa were repressented as a taxonomic model by the considering their external morphology-pubescence on floral axis and surface of leafblade, inflorescence type, tatio of petal and stamen length-and distributional range in Korea and neighboring countries.