Loading AI tools
Genus of ferns From Wikipedia, the free encyclopedia
Dipteris is a genus of about seven species of ferns, native to tropical regions across the world, particularly Asia, with a species in northeastern Queensland in Australia. It is one of two genera in the family Dipteridaceae.
Dipteris | |
---|---|
Dipteris conjugata | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Polypodiophyta |
Class: | Polypodiopsida |
Order: | Gleicheniales |
Family: | Dipteridaceae |
Genus: | Dipteris Reinw. |
Type species | |
Dipteris conjugata Reinwardt | |
Species | |
See text | |
Synonyms | |
|
Species of Dipteris grow from creeping rhizomes,[1] and have large stalks to the sporangium and annulus.[2] The rhizomes have bristles (or hairs) and the fronds have uniseriate hairs (having one line or series).[3] All species of Dipteris have spore-capsules that are carried on the lower surface of the broad lobed frond.[4] The fronds can reach up to 50 cm long.[5]
Caspar Georg Carl Reinwardt first published the genus in 1825,[6] by describing Dipteris conjugata Reinw.[7] which is the best known species.[8]
In 1839, R. Brown reduced the genus to a subgenus of Polypodium.[9] In 1901, Konrad Christ published Die Farnkrauter der Erde't, within which he included the genus Dipteris in the family Polypodiaceae, (a subdivision of the Polypodiacea).[10] It was then later placed into a separate genus,[4][5] Bower (1928), Ching (1940) and Pichi-Sermolli (1958) all having recreated the family Dipteridaceae, then comprising only one genus, Dipteris,[11] due to the differences in sporangium, stomata and gametophyte.[3]
The Latin genus name Dipteris refers to an amalgamation of two terms: di meaning two, and pteris Greek word used for ferns generally, meaning wing-like.[12]
Phylogeny of Dipteris[13][14] | |||||||||||||||||||||||||||
|
As of October 2019[update], Plants of the World Online and the Checklist of Ferns and Lycophytes of the World recognized seven species:[15][16]
Dipteris polyphyllus, a species from New Guinea has not been fully accepted as a species.[17]
Many species are found in Malaysia, Philippines, Samoa and New Guinea, growing beside Matonia (another fern species).[5][10] Most of the species grow on rocks, exposed places, clearings and in thickets.[18]
The genus has been found to have been widely distributed during the Jurassic period,[2] of the Mesozoic Era when much of the genus was widely distributed around Europe. Such fossils have been found in England, Germany, France, Belgium, Austria, Switzerland, Bornholm (island), Greenland, and Poland.[10]
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.