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題 名 | 臺灣省產紅豆杉科木材微細構造之研究(1):臺灣穗花杉木材之微細構造 |
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作 者 | 蔡如藩; | 書刊名 | 國立屏東技術學院學報 |
卷 期 | 1 1992.06[民81.06] |
頁 次 | 頁122-129 |
分類號 | 436.183 |
關鍵詞 | 木材; 杉科; 省產; 紅豆; 微細構造; 臺灣; 穗花杉木材; |
語 文 | 中文(Chinese) |
中文摘要 | 台灣穗花杉屬紅豆杉科、穗花杉屬,乃臺灣省特產的木材,邊材淡灰 白色,心材淡橘紅色,但兩者間並無明顯界限,年輪略明顯,木理均勻,木肌細 緻,含水率15.42時的此重為o.684,爐乾比竄為0.648,無待殊滋味與氣味。木 材由管胞、縱向柔壁細胞、及射線柔壁細胞組成,無周緣細胞(缺樹脂溝)及射線 管胞。管胞長2,100μm、弦向長約10-17μm,管胞壁具'雙線狀螺紋加厚,偶爾 有具螺紋裂隙者,但均無眉狀加厚,交叉區具柏木型壁孔。縱向柔壁細胞散生, 細胞壁具單梐壁孔,細胞腔內無樹脂。射線單列,僅1-4個細胞高,屬矮射線。 |
英文摘要 | Ameatotaxus formosana Li belongs to Amentotaxus of Taxaceae, It is one of the preciousand Will be extinct species. General Cheracteristics. Sapwood nearly light pale, heartwood light orange red, but withouttrue boundary between them, even grained, fine textured, without characteristic odor or taste. Specific gravity approx 0.694 15.42 MC.,0.648 ovendry. Growth rings not fairly distinct butprominent delineated by a band of darker latewood. Minute Anatomy. Wood of Ameatotaxus formosana Li is consisted of three categories ofcell. These are tracheid, longitudinal parenchyma, and ray parenchyma, without epithelial cell(resin canal wanting) and ray tracheid. Tracheids fine, up to 10-17 li m in diameter, featureddouble linelike spiral thickening, occasionally with spiral checks, bordered pit rare on the radialwalls, arrange one row, none on the tangential walls, cupressoid pit 1-4 per cross field, crassulaewanting. Longitudinal pranchyma without resin in the lumen. Ray uniseriate, 1-4 plus cells inheight, consisting entirely of ray parenchyma. |
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