Diplazium
Sign in to saveDiplazium is a genus of ferns that specifically includes the approximately 400 known species of twinsorus ferns. The Greek root is diplazein meaning double: the indusia in this genus lie on both sides of the vein. These ferns were earlier considered part of either the Athyriaceae, Dryopteridaceae, Aspleniaceae, or Polypodiaceae families or recognized as belonging to their own taxonomic family. The Pteridophyte Phylogeny Group classification of 2016 (PPG I) places the genus in the Athyriaceae. The taxonomy of the genus is difficult and poorly known, and by 2009 has never been the subject of a c
Species
GENUS
- KingdomPlantae
- PhylumTracheophyta
- ClassPolypodiopsida
- OrderPolypodiales
- FamilyAthyriaceae
Native toAfghanistan, Altay, Amur, Andaman Is., Angola, Argentina Northeast, Argentina Northwest, Assam, Azores, Bangladesh, Belize, Benin
Oxygonium is een geslacht van kevers uit de familie van de loopkevers (Carabidae). De wetenschappelijke naam van het geslacht is voor het eerst geldig gepubliceerd in 1951 door Basilewsky.
via GBIF · Kew POWO
Wikidata facts
- Instance of
- taxon
- Parent taxon
- Athyriaceae
- Image
- Diplazium dietrichianum RBG Sydney.jpg
Show 2 more facts
- P105
- genus
via Wikidata · CC0
Article
4 sectionsContents
- Taxonomy
- Selected species
- Notes
- References
Diplazium is a genus of ferns that specifically includes the approximately 400 known species of twinsorus ferns. The Greek root is diplazein meaning double: the indusia in this genus lie on both sides of the vein. These ferns were earlier considered part of either the Athyriaceae, Dryopteridaceae, Aspleniaceae, or Polypodiaceae families or recognized as belonging to their own taxonomic family. The Pteridophyte Phylogeny Group classification of 2016 (PPG I) places the genus in the Athyriaceae. The taxonomy of the genus is difficult and poorly known, and by 2009 has never been the subject of a complete monographic study. Their distribution is pantropical, with a few species extending into temperate areas.
The rhizome of the genus Diplazium varies from creeping to erect, and is scaly. Its fronds are deciduous or evergreen, are trophopodic and are either monomorphic or weakly dimorphic. The stipe is green, deeply grooved from above, and is either scaly or glabrous. It always has two lunate vascular bundles. The blades are either singular or in sets of two and are entirely pinnate, range from oblong-lanceolate to deltate, and from herbaceous to papery. It has linear basal sori that are paired back-to-back on the same vein. The indusium is linear and persistent, and the sporangia are brownish.