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題 名 | A Morphometric Analysis of the Eastern Asian Kalopanax Septemlobus (Thunb.) Koidz. (Araliaceae)=東亞七裂葉刺楸(五加科)的形態數值分析 |
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作 者 | Chang,Chin-sung; Kim,Hui; Kang,Ho-sang; Lee,Don koo; | 書刊名 | Botanical Bulletin of Academia Sinica |
卷 期 | 44:4 2003.10[民92.10] |
頁 次 | 頁337-344 |
分類號 | 373.68 |
關鍵詞 | 五加科; 型; 七裂葉刺楸; 琉球七裂葉刺楸; 形態數值分析; 主成份分析; Araliaceae; Forms; Kalopanax septemlobus; Kalopanax septemlobus subsp; Lutchuensis; Morphometrics; Principal components analysis; |
語 文 | 英文(English) |
中文摘要 | 七裂葉刺楸 (Kalopanax septemlobus(Thunb.)Koidz.) 係五加科中一木本植物,廣泛分布於東亞,而形態上相當多變。本研究針對標本館內的標本並輔以大量田野採得的葉片進行形態數值分析,以期釐清是否種內形態上的差異值得處理為不同的分類群。我們選用了可代表整個地理分布範圓的126個個體,記錄20項形態特徵, 再將資料矩陣進行主成份分析。結果顯示七裂葉刺楸是一個多型性的種,目前所觀察到的不同的類型可能多係環境誘發的變異 , 顯示本種具有高度的環境上的可塑性。本研究並不支持之前所認定的各種內的分類群可具有分類上的位階。 |
英文摘要 | Kalopanax septemlobus (Thunb.) Koidz., a woody species of Araliaceae, exhibits a broad range of morphological variation and occurs throughout much of eastern Asia. A morphometric analysis of herbarium material supplemented with a large sample of field-collected leaves was undertaken to determine if the morphological differentiation found within Kalopanax septemlobus warranted the taxonomic recognition of distinct taxa. One hundred twenty six individuals representing the total geographic range of the species were scored for 20 morphological characters, and the data matrix was subjected to principal components analysis. The results indicated that Kalopanax septemlobus should be recognized as one polymorphic species. Previously recognized infraspecific taxa were not supported to warrant the designation of any taxonomic rank. The observed pattern of variation may be environmentally induced and suggests that the species may exhibit environmental plasticity. |
本系統中英文摘要資訊取自各篇刊載內容。