摘要
本文报道了在中国山西太原晚石炭世煤核中发现的靓籽属(Callospermarion),它为古生代种子蕨 Callistophyton 的种子。作者用醋酸纤维膜连续撕片技术与扫描电镜观察相结合,对该类种子进行了研究,并根据解剖结构再造了种子的结构。确立一新种——中国靓籽(Callo-cpermarion sinicum)及另一种未定种(Callospermarion sp.)。并与该属的另外两个种微小靓籽(C.pusillum)和波缘靓籽(C.undulatum)进行了比较。文中还讨论了该种子蕨种子的特殊性,以及新种与其它种子蕨和其它裸子植物的关系。
The petrified Paleozoic seed Callospermarion is discussed.A new species,C.sinicum and C.sp.are discribed from several seed specimens collected from the Upper Caboniferous depo- sits in the Shanxi province.The characteristic of C.sinicum sp.nov.is between C.undulatu and C.pusillum.For example,the symmetry of C.sinicum sp.nov.is more distinctly bilaterap than that of C.undulatum,but not as prominent as C.pusillum with promint lateral ridges The characteristic of C.sp.is similar to C.undulatum,but is not the same.Relationship with other Paleozoic seed ferns is also discussed.
关键词
靓籽属
古生代
种子蕨
Callospermarion
Pteridosperm
Ovule
The Upper Caboniferous
Coal balls
