This study of the fossilised stem of a royal fern in Lahar deposits from Korsaröd in Scania includes cellular details that are ‘exquisitely preserved’.
Tag - Ferns
Nigel Chaffey
Pteris – the most diverse ferns
The inferred biogeographic history highlights long-distance dispersal as a major process shaping the worldwide distribution of the genus Pteris.
AJ Cann
Trends and concepts in fern classification (Invited Review)
Christenhusz and Chase highlight which fern groups/genera have taxonomic issues that remain to be clarified, and propose the use of broader family concepts.
botanyone
Sweet nectar gives ferns a bitter taste
A collection of papers on Extrafloral Nectaries has recently moved into Free Access at Annals of Botany. One of the papers raises the question, can a plant that never flowers have extrafloral nectaries? Nectar secretion...
Alun Salt
Highlight on diversity, ecology and evolution of extrafloral nectaries
Plants in over 100 families bear extrafloral nectaries (EFNs), which secrete a carbohydrate-rich food that attracts ants and other arthropods. By fostering ecologically important protective mutualisms, EFNs play a...
Highlight on diversity, ecology and evolution of extrafloral nectaries
Plants in over 100 families bear extrafloral nectaries (EFNs), which secrete a carbohydrate-rich food that attracts ants and other arthropods. By fostering ecologically important protective mutualisms, EFNs play a...
Duke botanists go gaga over ferns
Yes, I know that ‘everyone and their dog’ has probably written something about this item, but sometimes you’ve just got to go with the flow. So, here’s my take on the story that straddles the ‘in your face...
Hemicellulose evolution in monilophytes (Research in Context)
The Equisetopsida emerged in the Upper Devonian (>370 mya), and Equisetum (horsetails) may be the oldest surviving vascular plant genus. Horsetails and the Poales are the only plants possessing the hemicellulose (1...
Helical cell wall thickenings in Aspleniaceae
Helical cell wall thickenings in Aspleniaceae Extraxylary helical cell wall thickenings (HCWTs) in vascular plants are not well documented. Leroux et al. study their occurrence and composition in the root cortex of the...
Will ferns play a key role in mitigating climate change for some forests?
There’s an interesting paper in the July edition of the American Journal of Botany, Polystichum munitum (Dryopteridaceae) varies geographically in its capacity to absorb fog water by foliar uptake within the...
