摘要
本文报道了山西太原晚石炭世煤核中所发现的观音座莲目植物的生殖器官——中华硬囊蕨(Scolecopteris sinensis sp.nov.)。利用醋酸纤维膜连续撕片技术的同时,还进行了扫描电子显微镜的观祭和照相,获得中华硬囊蕨原位孢子的精细结构。本文讨论了该新种与同属其它种的关系及其在系统发育上的意义,以及它在古植物群落中的生态学意义。
A new species of the late Paleozoic fern Scolecopteris (Marattiales) is described and its relationship within the genus is discussed. Scolecopteris sinensis sp. nov., from Shanxi (coal balls of Taiyuan formation, upper Carboniferous), is similar to S. saharaensis, however some differences in characters are evidenced, such as pedicel and sporal ornamentation. The anatomy of the sporangium walls, pinule morphology, and general spore type support its association with the Minor group of Scolecopteris. The phylogenetic and ecological magnitude of Scolecopteris sinensis is also discussed.
关键词
硬囊蕨
石炭纪
新种
山西
Scolecopteris
Spore in situ
Upper Carboniferous
Coal balls
Marattiales
