Spore morphology of pteridophytes from China Ⅲ. Thelypteridaceae 1. Cyclosorus Link.

Spore morphology of 51 species of Cyclosorus in the Thelypteridaceae from China was investigated using scanning electron microscopy (SEM). The spores are monolete, bilaterosymmetric, ellipsoidal in polar view, and kidney-shaped in equatorial view. On the basis of the variation in their surface ornamentation, the spores fall into three main types. Type I: The surface of spores is echinate or perforate with fimbriate wings. 19 species belong to this type. Type Ⅱ: The surface of spores is cristate. 11 species belong to this type. Type Ⅲ: The surface of spores is echinulate. 10 species belong to this type. The remaining 11 species have spores with mixed surface ornamentation of the above three types, which are considered as intermediate types. The results are valuable for a better understanding of the taxonomy and palynology of the genus Cyclosorus.     

金星蕨科16种植物叶表皮特征的研究

利用光学显微镜对金星蕨科(Thelypteridaceae)8属16种植物的叶表皮形态进行了观察和研究,为金星蕨科植物的系统演化及分类提供科学依据。结果表明:(1)16种金星蕨科植物的叶片表皮细胞为不规则型,表皮细胞垂周壁大多呈深波状。(2)气孔为下生型,多呈椭圆形;共观察到6种气孔器类型(极细胞型、腋下细胞型、聚合极细胞型、聚腋下细胞型、不规则型和聚围绕细胞型),每种植物具2~5种不同类型的气孔器。(3)金星蕨科8属植物在表皮细胞大小、垂周壁形状、气孔大小和形状、气孔密度、气孔指数和气孔器类型上存在一定的属间差异。     

渐尖毛蕨(金星蕨科)四个新异名

根据标本研究和野外观察,将疏羽毛蕨、拟渐尖毛蕨、慈利毛蕨和光叶毛蕨处理为渐尖毛蕨的异名。     

国产毛蕨属（金星蕨科）六新异名

将乐清毛蕨（ Cyclosorus luoqingensis ）处理为德化毛蕨（C．dehuaensis）的异名,南岭毛蕨（C．narlingensis）和少羽毛蕨（C．paucipinnus）处理为[梣]叶毛蕨（C．fraxinifolius）的异名,倒披针毛蕨（C．oblanceolatus）处理为南平毛蕨（C．nanpingensis）的异名,雁荡毛蕨（C．yandongensis）和寻乌毛蕨（C．xunwuensis）处理为华南毛蕨（C．parasiticus）的异名,并作了相应的讨论。