作 者 ：Tao Jun-Rong, Zhang Chuan-Bo
期 刊 ：植物分类学报 1992年 5期
Keywords:Reproductive organs,
Abstract:
Two fossil reproductive organs of early angiosperms were collected
from the Yanji Basin, Jilin Province of China. The assemblage of fossil plants
consist mainly of pteridophytes, gymnosperms and a few angiospoermms. The present
paper only reports the two reproductive organs of angiosperms. They are
Archimagnolia rostrato-stylosa gen.et sp. nov., Eucommioites orientalis sp.nov. The
first is a slightly elongated floral axis(receptacle), with about 20 carpels
helically arranged. The carpels are free from each other and attenuated into a
beak-like structure at the apex, with the base inserted into the receptacle. A com-
parison with living plants indicated its close relationship with some members of
the Magnoliaceae. The second is a samara, similar to a fruit of the genus
Eucommia, narrow-oblong, 2-lobed at the apex with the lobes stigmatic on the
inner side. The seed is situated at the middle of fruit, oblong in shape.