本文描述了棕榈科省藤属及黄藤属共24种藤茎的导管分子。毛鳞省藤(Calamus thysanolepis Hance)仅具单穿孔板,其余藤种均有单穿孔板和复穿孔板,但具复穿孔板导管分子的数量少,并且大部分存在于维管区外围。此外,观察到少数具复穿孔板的螺纹导管分子。自茎的外围向内,后生木质部导管分子的宽度增大;多数藤种的导管分子长度呈增大的趋势,部分藤种则相反,或无规律。 This article describes a total of 24 species of cane in the genus Palmetto. Calamus thysanolepis Hance has only a single perforated plate, while the remaining rattan species have single perforated plates and double perforated plates. However, there are fewer perforated plate catheters, and most of them exist in the periphery of the vascular region. In addition, a few threaded catheter molecules with multiple perforated plates were observed. From the periphery of the stem, the width of cathepsin in posterior xylem increased. The length of the catheter in most of the rattan species tended to increase, while that of some species was opposite or irregular.