臺灣產五列木科四屬木材顯微組織研究

The Wood Anatomy of Four Genera of Pentaphylacaceae Species in Taiwan

吳佾鴻(Yi-Hung Wu) ； 謝思怡(Szu-I Hsieh) ； 張坤城(Kun-Cheng Chang) ； 曾彥學(Yen-Hsueh Tseng)

《林產工業》 37卷3期 (2018/09) Pp. 127-136

https://doi.org/10.6561/FPI.201809_37(3).0001

摘要

本研究以掃描式電子顯微鏡（Scanning election microscopy，SEM）進行臺灣產四屬6種五列木科木材顯微組織觀察分類。研究顯示五列木科各屬木材之主要特徵為：散孔材，具髓斑；導管穿孔板傾斜，階梯狀穿孔；導管內壁螺紋狀加厚或具疣狀突起；木質線薄壁組織單列或多列並存，兼具異性I型、Ⅱ型與Ⅲ型，直立細胞較橫臥細胞高。文中提供各屬木材組織特徵檢索及各屬代表種之木材組織描述，另拍攝木材橫切面、弦切面、徑切面相片等供鑑定參考。

關鍵字

五列木科 ； 臺灣 ； 山茶科 ； 木材解剖

並列摘要

This study investigated the wood microstructure of six native species belonging to 4 genera of Pentaphylacaceae in Taiwan. Scanning Electron Miscroscopy (SEM) was used for observation and identification. The experimental results indicated that the wood of these 4 genera in Taiwan had the following main characteristics: (a) diffuse-porous wood with pith flecks, (b) vessels with scalariform perforation and oblique end wall, (c) vessels with spiral thickening, and (d) parenchyma of ray both uniseriate and multiseriate, heterogeneity of type I, type II, and partially type III and upright cells taller than procumbent cells. A key to wood tissue of each genus is provided along with a comprehensive description of a representative species. Photos of wood cross, tangential, and radial section are presented for reference as well.

並列關鍵字

Pentaphylacaceae ； Taiwan ； Theaceae ； Wood anatomy