Abstract:

Lunathyrium shandongense J. X. Li et F. Z. Li, a new species, was originally published in the Bulletin of Botanical Research in 1984 and then was recorded in the Flora of Shandong volumeⅠ. Compared with Lunathyrium pycnosorum(Chirist)Koidz,it has some important characteristics such as erect rhizome, excessively long first pinnulae at the top pinna of basical leaves and twice longer than normal one, little or not grown pinnatipartite, innodular pubescence between freesectionpinnulae, inconsecutive ruga among spore perispore.  We should restore its specieslevel position in plant taxonomy.

Key words: Lunathyrium shandongense, Lunathyrium pycnosorum