• Title/Summary/Keyword: Brochidodromous

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한국산 목본식물에 대한 계통분류학적 연구

  • Kim, Kyung Sik
    • Journal of Plant Biology
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    • v.27 no.1
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    • pp.15-24
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    • 1984
  • Leaf venation of 12 species of Lauraceae in Korea, native or introduced, was investigated and described by the use of Soft X-Ray. They could be grouped by the venation types, such as, 1. Actinodromous; Lindera obtusiloba, 2. Acrodromous; Cinnamomum camphora, C. japonicum, C. loureirii, 3. Brochidodromous having strongly developed basal secondary vein; Neolitsea aciculata, N. sericea, 4. Brochidodromous hoving irregulary branched secondary vein; Lindera erythrocarpa, L. glauca, 5. Brochidodromous having weak marginal loop; Machilus thunbergii, M.Japonica, 6. Brochidodromous having typical venation; Iozoste lancifolia, Litsea japonicum. This grouping corresponded with current classifying system at genus level except for genus Lindera, and supported Nakai's system at Tribe level. They also showed a gradual transition from brochidodromous to actinodromous types, but to certify the systematic value of this transition warrented more study. Identifying key for the species could be made by the venation type.

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A Systematic Study of Korean Rutaceae(I) - Mainly Treated with Venation and Stomatal Type - (한국산(韓國産) 운향과(芸香科)의 계통분류학적(系統分類學的) 연구(硏究)(I) - 엽맥(葉脈)과 기공형태(氣孔形態)를 중심(中心)으로 -)

  • Lee, Jeong Hwan;Kim, Sam Sik
    • Journal of Korean Society of Forest Science
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    • v.82 no.3
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    • pp.260-270
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    • 1993
  • This study was carried out to clarifyed a taxonomical relationships of Rutaceae on the subfamily, genus and species level in Korea using venation pattern and stomata types. The results are summarized as follows : The leaf venation of the Rutaceae has revealed three major venation types. Semicraspedodromous, Brochidodromous and Cladodromous. The leaf ufmations type of the genus Evodia and Phellodendron were similar to Cladodromous type. They showed gradual evolution from brochidodromous type of Aurantioideae to cladodromous type of Toddaloideae. The stomata ypes were reconized Anomocytic and Actinocytic type, and epidermal cells were Ansio. Polygonal and Medium type. In the correlation analysis, there were highly significant correlation between frequency and length (r=-0.822), frequency and width (r=-0.780), and length and width(r=0.909) at 1% level.

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Leaf Architectural Studies in the Asteraceae-II

  • Ravindranath, K.;Inamdar, J.A.
    • Journal of Plant Biology
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    • v.28 no.1
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    • pp.57-67
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    • 1985
  • Leaf architectural studies have been made in 15 genera and 25 species belonging to 6 tribes of the Asteraceae. Major venation pattern conforms to pinnate craspedodromous (simple and semi), pinnate camptodromous with festooned brochidodromous secondaries, acrodromous and actinodromous. Qualitative leaf features and numerical data regarding the venation pattern are charted. Areoles of different sizes and shapes are observed. Tracheids occur either solitary or in groups. Grouped tracheids are either uniseriate, biseriate or multiseriate. Isolated free vein endings are observed in Centratherum phyllolaenum. Bundle sheath is prominent in Xanthium strumarium. Secretory cavities are observed in the lamina of Tricholepis amplexicaulis.

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A Systematic Study of the Theaceae 6 Species in Korea (한국산(韓國產) 차나무과(科) 6종(種)의 계통(系統) 분류학적(分類學的) 연구(硏究))

  • Kim, Sam Sik;Lee, Jeong Hwan
    • Journal of Korean Society of Forest Science
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    • v.82 no.4
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    • pp.431-440
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    • 1993
  • This study was carried out to clarify a taxonomical relationships of the Korean Theaceae using characters from morphological, anatomical, electrophoretic and numerical methods. The results are summarized as follows ; Morphological data were cluster analysis by Euclidean distance, the complete and average linkage cluster were most distinctly classified into subfamily level. At the principal components analysis(PCA), the commutative contribution rate of three principal components showed to 91.1% total variance. By the leaf venation were classified semicraspedromous type of Theoideae and brochidodromous type of Ternstroemioideae. The stomatal types were classified Paracytic of Theoideae and Anomocytic type of Ternstroemioideae ; the former has founded subsideary cell the latter has not found. All taxa possessed common isozyme bands did not found out of Theaceae banding patterns. But, the activity of Theoideae were existed in below No.5(Rf. 4.0-4.4), in contrast to Ternstroemioideae were existed in more than No.7(Rf. 5.7-6.2). The cluster analysis of leaf characters and peroxidase isozymes were similarity between two methods.

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