【摘要】 小叶买麻藤[Gnetum parvifolium(Warb.)C.Y.cheng ex Chun]营养叶的石细胞有五种类型,其中有一种线形石细胞(filiform sclereids),在本属中过去没有报道过。石细胞多数沿叶片中央脉的两侧区域分布且较稠密。上、下表皮细胞的垂周壁是“之”字形波曲状,以及垂周壁上具有向细胞腔内突的奇异形态的角质球囊(cuticular globosa sac)。更多还原

【Abstract】 The present research was undertaken to examine the foliar anatomy of Gnetum parvifolium(Warb.)C.Y.Cheng ex Chun.It is hoped that the observations may con- tribute to provide additional evidence for identification on chinese species of this genus. A special morphological features inside of epidermal anticlinal wall designated here as the globose cuticular sac,and is the special feature of this epidermis not yet reported in this genus.During the course of an investigation on sc]ereid type of leaf in this species Ⅰ observed the striking type of these cells in cleared leaf preparations,viz.fili- form sclereids(368-624μm long,10μm broad),one not hitherto described for any other species in this genus.更多还原