• 제목/요약/키워드: Floral classification

검색결과 18건 처리시간 0.023초

Structure, Ontogeny, Classification, and Taxonomic Significance of Trichomes in Malvales

  • Inamdar, J.A.;Bhat, Balakrishna;Rao, T.V.Ramana
    • Journal of Plant Biology
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    • 제26권3호
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    • pp.151-160
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    • 1983
  • Structuer, ontogeny, classification and taxonomic significance of trichomes have been studied in 39 genera and 125 species of the selected families in Malvales. They were studied on both vegetative and floral organs. There are nine types of eglandular and eight of glandular trichomes. The trichomes were classified on the basis of their form, structure and contents. All of them originated from a single papillate hair initial. According to the trichome data, the Malvales was comfirmed as a natural order with 5 homogenous families: Malvaceae, Bombacaceae, Sterculiaceae, Tiliaceae, and Elaeocarpaceae.

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경험의 서사화와 시각화 방법을 적용한 화예작품 창작의 연구 (A Study on th e Creation of Floral Art Works Applying th e Meth ods of th e Narration and Visualization of the Experiences)

  • 한유정;유택상
    • 한국화예디자인학연구
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    • 제43호
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    • pp.39-56
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    • 2020
  • 본 연구는 연구자 자신의 경험 가운데 의미 있게 느껴지는 사건의 순간을 감각적 지각을 통해 반추하는 방법적 과정을 통해 추출하고 파악함으로써 직관적 통찰을 행하고 그를 통해 화예 작품 창작을 시도한 연구이다. 구체적으로는 경험의 서사화와 시각화를 시도하였는데 경험의 서사화 단계에서는 무의식 상태의 느낌을 포착하는 수단으로서 감각적으로 지각되는 느낌과 주관적 인상, 정서, 의식의 흐름을 기술하는 느낌의 글쓰기 방법을 '경험의 탐색', '경험의 구체화', '경험의 의미 생성'의 세 단계로 실행, 적용하였고, 경험의 시각화 단계에서는 이미지리서치를 통한 이미지의 수집, 선택, 분류 및 해석을 가지고 '이미지 형성하기', '직관활용하기', '기억작용으로 지각하기'의 세 방법을 실행, 적용하였다. 최종적으로 이들 방법의 통합과 추가적인 보완 리서치 및 글쓰기를 통하여 '해먹은 좋다', '햇볕이 따듯했던 옥상', '홀로 물가에 서다', '뜨거운 모래밭과 혼미함', '멋진 식물원에서의 한때'의 5개 작품의 창작이 이루어졌다. 종합하면 경험의 서사화와 시각화 방법을 결합 후 적용하여 작품 창작 과정의 방법적 접근을 시도한 점에서 본 연구의 의의가 있다 하겠다.

Pollen Morphology of Genus Sedum in Korea

  • Kim, Jeong-Hee
    • Journal of Plant Biology
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    • 제37권2호
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    • pp.245-252
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    • 1994
  • Pollens of 20 species of Sedum were investigated with a scanning electron microscope. The pollen morphology of Sedum was rather variable, within particular species or even within a single inflorescence. Differences occurred in the number and shape of apertures and surface sculpture. Besides 3-colporate, various aperture types including 2-syncolporate, 3-syncolporate, 40stephanocolporate, 5-stephanocolporate, zonate, and irregular types were found in a single specimen. Also, striate-rugulose and psilate sculpture were found in S. viviparum. No correlation was found between the pollen morphology and the floral formula. Pollen characters appeared to be not useful for infrageneric classification of Korean Sedum.

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Headspace GC-MS Analysis of Spring Blossom Fragrance at Chungnam National University Daedeok Campus

  • Choi, Yeonwoo;Lee, Sanghyun;Kim, Young-Mi;Nguyen, Huu-Quang;Kim, Jeongkwon;Lee, Jaebeom
    • Mass Spectrometry Letters
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    • 제13권4호
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    • pp.125-132
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    • 2022
  • There are many types of spring blossoms on the Daedeok campus of Chungnam National University (CNU) at the area of 1,600,000 square meters. As an assignment for the class of Analytical Chemistry I for second-year undergraduate students, 2021, flower petals collected from various floral groups (Korean azalea, Korean forsythia, Dilatata lilac, Lilytree, Lily magnolia, and Prunus yedoensis) were analyzed using headspace extraction coupled to gas chromatography-mass spectrometry (HS-GC-MS) to study the aromatic profiles and fragrance compounds of each sample group. Various types of compounds associated with the aroma profiles were detected, including saturated alcohols and aldehydes (ethanol, 1-hexanol, and nonanal), terpenes (limonene, pinene, and ocimene), and aromatic compounds (benzyl alcohol, benzaldehyde). The different contribution of these compounds for each floral type was visualized using statistical tools and classification models based on principal component analysis with high reliability (R2 = 0.824, Q2 = 0.616). These results showed that HS-GC-MS with statistical analysis is a powerful method to characterize the volatile aromatic profile of biological specimens.

Palynological contributions to the taxonomy of family Oleaceae, with special empahsis on genus Forsythia (tribe Forsytheae)

  • Lee, Sangtae
    • 식물분류학회지
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    • 제41권3호
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    • pp.175-181
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    • 2011
  • Traditionally, the Oleaceae has been divided into subfamilies Oleoideae and Jasminoideae. In the present paper, the taxonomical results so far made on the family were reviewed on the basis of palynology. The subfamilial classification is not well supported palynoligically, because both Myxopyrum of Jasminoideae and Comoranthus of Oleoideae having foveolate surface are well distinguished from the rest of the family having reticulate surface. The recent subfamily Nyctanthoideae (Takhtajan, 1977) including the monotypic Nyctanthus, was suggested to be included within the Jasminoideae although its closest relative on the palynological basis is different from that on the molecular basis. Tribal classification systems of the Jasminoideae are not well supported palynologically on the basis of surface character: presence or absence of bands on the mural ridge surface of the reticulum. On the basis of palynology, tribe Forsythiae including Abeliophyllum, Fontanesia, and Forsythia is monophyletic, and Fontanesia is well distinguished from the rest two. Korean species of Forsythia is divided into two: Forsythia koreana group and F. ovata-nakaii-saxatilis group. Recent discovery of F. saxatilis at a locality of F. ovata raised a question if the distinction between the two species on the basis of hairiness would be right. In the recent molecular studies, F. saxatilis var. lanceolata seems to be identified as F. saxatilis. Molecular studies showed that F. saxatilis (seemingly var. lanceolata or var. pilosa) is close to F. koreana. The fact in which the molecular result showed a close relationship between F. saxatilis varieties and F. koreana, is controversial to the result by floral and vegetative morphology. An intensive taxonomic study of these taxa would be needed.

지리정보시스템(GIS)을 이용한 경산시의 토지잠재력 분석 (A Land Capability Analysis in Kyungsan, Korea Using Geographic Information System)

  • 오정학;정성관
    • 한국조경학회지
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    • 제26권3호
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    • pp.34-44
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    • 1998
  • The purpose of this study is to provide the basic data for land use in the future, which result from analyzing land use, obtained after studying on the natural environment by Geographic Information System and Remote Sensing. The results of this study are as follows : ·According to the classification of land-cover, agricultural land use is relatively prominent except for overall natural covering. According to the average value of Green Vegetation Index class, the average value of GVI is 3.0, and 45% of the regions have relatively good condition of floral state. ·With a view to natural environment, the survey shows that the altitude of 90% of the total areas is below 400m, and most of them are flattened or moderately-inclined area. Therefore, this region has a good condition to be used for development. · The area for the first class in preservation degree of natural scenery of Namcheon-Myun is 2.3% of the total areas. According to the results about unstable areas on all sides, unstable districs are distributed in so small-scale units that they will be safe from some damages drawn by developing activity. But we have to consider every aspects for the future development of them. In this study, the natural environment-variables are regarded firstly, and effective designation of the land with natural environment is researched too. However, to establish more practical developing plan, ecological and human variables should be regarded.

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한국산 목본식물에 대한 계통분류학적 연구 -녹나무과의 외부 형태- (Systematic Studies on Some Korean Woody Plants -External Morphology of Lauraceae-)

  • Sun, Byung-Yun
    • Journal of Plant Biology
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    • 제27권3호
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    • pp.129-138
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    • 1984
  • 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 Neolitsea are highly reduced state as unisexual flower, six stamens arranged to three whorls and 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.

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우리나라 7개 내륙습지의 수생식물 분포상 (Hydrophytes Flora of Seven Swamp Inland in Korea)

  • 김유선
    • 화훼연구
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    • 제17권1호
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    • pp.52-61
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    • 2009
  • 우리나라 내륙습지 7곳의 식물상과 군락을 조사한 결과, 우리나라 내륙습지 7곳의 식물상은 32과 49속 69종이었으며 이 중 사초과가 16종으로 23%로 나타났으며 일년생 초본식물 군락 1개와 다년생 초본식물 군락 6개 등 총 7개 군락(큰고랭이군락, 갈대군락, 줄군락, 고마리군락, 부들군락, 비녀골풀군락, 골풀군락)을 보였다. 조사습지 전체의 중요도 값이 높게 나온 우점식물은 큰고랭이, 갈대, 줄, 고마리, 부들, 비녀골풀 및 가래였다.

데미샘 주변의 식물 분포와 군락 분류 (Community Classification and Distribution of the Vascular Plants in the Daemisaem Region)

  • 변무섭;오현경
    • 한국환경복원기술학회지
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    • 제10권3호
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    • pp.25-37
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    • 2007
  • The vascular plants of the study area in the Daemisaem region were listed as 302 taxa; 81 families, 196 genera, 251 species, 1 subspecies, 42 varieties, 7 forms and 1 hybrid. Based on the list of Korean endemic plants, 7 taxa were recorded; Carex okamotoi, Salix purpurea var. japonica, Thalictrum uchiyamai, Lespedeza ${\times}$ tomentella, Weigela subsessilis, Aster koraiensis, Cirsium chanroenicum. Specific plants by floral region were total 21 taxa; Silene jenisseensis, Cimicifuga heracleifolia in class IV, 3 taxa (Lilium leichtlinii var. tigrinum, Betula davurica, Lonicera subhispida) in class III, 3 taxa (Viola tokubuchiana var. takedana, Ligularia fischeri, Cirsium chanroenicum) in class II, 13 taxa (Glyceria leptolepis, Meliosma oldhamii, Fraxinus mandshurica, etc.) in class I. The naturalized plants in this site were 8 families, 20 genera, 23 species, 1 varieties, 24 taxa and naturalization rate was 7.9% of all 302 taxa vascular plants. The vegetation community of the selected Daemisaem region were growth of configuration to slope, ridge and valley; Quercus variabilis community, Quercus serrata community, Quercus mongolica community, Salix koreensis community in the slope, Quercus mongolica community, Carpinus tschonoskii community in the ridge, Fraxinus mandshurica community, Carpinus laxiflora community, Acer mono community, Cornus controversa community, Morus bombycis community in the valley.

의인화 기법으로 소구하는 디자인에 관한 연구 (A Study on the Designing by the Personification Technique)

  • 이세정
    • 한국화예디자인학연구
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    • 제42호
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    • pp.133-144
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    • 2020
  • 의인화는 커뮤니케이션 디자인 영역에서 흔히 사용되는 소구 방법 중 하나로 인간이 접하는 거의 모든 시각이미지는 이러한 의인화 현상에 노출되어 있고 우리는 의식적으로 또는 무의식적으로 의인화 현상을 활용하거나 활용 당하고 있는 현실이다. 또한 의인화 현상은 특정 학문분야가 아닌 거의 모든 문화·예술 전반에 걸쳐 적용 사례를 찾아볼 수 있다. 따라서 본 논문에서는 문화·예술 전반에서 관찰되는 의인화 기반의 사례와 선행연구의 결과를 토대로 의인화를 관계 형성구도를 중심으로 재정의 하였다. 또한 의인화 기법에 대한 선행연구에서 도출된 의인화 유형 및 제스처 목록을 기준으로 의인화 형태를 관계형성의 주체에 따라 의인화와 역 의인화, 두 부류로 규정하고 각각의 다른 물리적인 형질을 기준으로 화훼 및 공간장식을 포함한 디자인 영역에 걸쳐 소구되는 의인화 기법의 적용사례를 통해 효과적인 의인화 적용 체계를 정의 하였다. 의인화 관계형성 구도와 의인화 적용 체계의 정의를 통해 다양한 매체에서 효과적인 수용자 만족도를 이끌어 낼 수 있는 의인화 기법의 틀을 제공하였다. 또한 매체가 가진 본질의 개념적 형질의 특성을 제스처 목록과 의인화 유형분류에 동기화하는 의인화 적용체계를 통해 강력하고 효과적인 의인화 기법으로 향유자와 소통할 수 있는 장치가 마련될 수 있음을 확인하였다.