Spore studies in the genus Gymnocarpium

Journal Article

Scanning electron microscopy was used to examine the variation in perispore characters within and between six currently recognized taxa of the genus Gymnocarpium Newm. in North America. Representative scanning electron micrographs are presented and depict the perispore features observed. Spores of those taxa studied here do not each possess a distinctive morphology providing practical species discrimination, rather they all exhibit similar patterns of variation. Spore size was also examined and shown to be correlated to ploidy level, permitting positive identification of the diploid taxon G. dryopteris ssp. disjunctum from the tetraploid G. dryopteris ssp. dryopteris.

Full Text

Duke Authors

Cited Authors

  • Pryer, KM; Britton, DM

Published Date

  • February 1, 1983

Published In

Volume / Issue

  • 61 / 2

Start / End Page

  • 377 - 388

Published By

International Standard Serial Number (ISSN)

  • 0008-4026

Digital Object Identifier (DOI)

  • 10.1139/b83-045


  • en