Cheilanthes

Last updated

Cheilanthes
Cheilanthes parryi 1.jpg
Cheilanthes parryi
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Family: Pteridaceae
Subfamily: Cheilanthoideae
Genus: Cheilanthes
Sw. [1]
Type species
Cheilanthes micropteris
Sw.
Species

See text

Synonyms
  • Chrysochosma(J.Sm.) Kümmerle
  • CincinalisGled. ex Desv.
  • LeptolepidiumK.H.Hsing & S.K.Wu
  • NeurosoriaMett. ex Kuhn
  • OeosporangiumVis.
  • PomatophytumM.E.Jones [1]

Cheilanthes, commonly known as lip ferns, [2] is a genus of about 180 species of rock-dwelling ferns with a cosmopolitan distribution in warm, dry, rocky regions, often growing in small crevices high up on cliffs. Most are small, sturdy and evergreen. The leaves, often densely covered in trichomes, spring directly from the rootstocks. Many of them are desert ferns, curling up during dry times and reviving with the coming of moisture. At the ends of veins sporangia, or spore-bearing structures, are protected by leaf margins, which curl over them.

Contents

Taxonomy

The genus name is derived from the Greek words χεῖλος (cheilos), meaning "lip," and ἄνθος (anthos), meaning "flower." [3]

Cheilanthes as traditionally circumscribed is now known to be highly paraphyletic, comprising at least four generically separate groups. The type species, C. micropteris , is most closely allied to the genera Aleuritopteris and Sinopteris (Schuettpelz et al.). In the early 21st century, many species, principally from the New World, were moved into the new genus Gaga and the revived genus Myriopteris . Further work remains to be done to render Cheilanthes monophyletic. Members of many other cheilanthoid genera have at times been given names in the genus.

Species

The circumscription of the genus was uncertain as of January 2020. The Checklist of Ferns and Lycophytes of the World lists species in several distinct groups. [4]

Cheilanthes sensu stricto contains about 20 species from North and tropical Central and South America: [5]

Cheilanthes sensu lato contains about 50 species that molecular phylogenetic studies suggest do not form a clade with the core Cheilanthes species, falling into separate clades, but for which no placement outside Cheilanthes was available as of November 2019: [6]

Related Research Articles

<i>Pteris</i> Genus of ferns in the subfamily Pteridoideae

Pteris (brake) is a genus of about 300 species of ferns in the subfamily Pteridoideae of the family Pteridaceae. They are native to tropical and subtropical regions, southward to New Zealand, Australia, and South Africa, north to Japan and North America. 78 species are found in China. Some species of Pteris have considerable economic and ecological value, such as Pteris multifida, Pteris ensiformis, Pteris vittata can be used for ornamental purposes; as a hyperaccumulator, Pteris multifida and Pteris vittata can be used to control soil pollution.

<i>Cyathea</i> Genus of ferns

Cyathea is a genus of tree ferns, the type genus of the fern order Cyatheales.

<i>Pellaea</i> (plant) Genus of ferns

Pellaea is a genus of ferns in the Cheilanthoideae subfamily of the Pteridaceae. The genus name is derived from the Greek word πελλος (pellos), meaning "dark," and refers to the brown stems. Many members of the genus are commonly known as cliffbrakes. They primarily grow in rocky habitats, including moist rocky canyons, slopes, and bluffs.

<i>Notholaena</i> Genus of ferns

Notholaena, cloak fern, is a genus of ferns in the Cheilanthoideae subfamily of the Pteridaceae. Ferns of this genus are mostly epipetric or occurring in coarse, gravelly soils, and are most abundant and diverse in the mountain ranges of warm arid or semiarid regions. They typically have a creeping or erect rhizome and leaves that are pinnatifid to pinnate-pinnatifid with marginal sori protected by a false indusium formed from the reflexed margin of the leaf. Members of Notholaena also have a coating of whitish or yellowish farina on the surfaces of the leaves. The farina is often limited to the abaxial (lower) leaf surface, but may occur on the adaxial (upper) leaf surface as well. Members of the related Pentagramma genus have a similar lower leaf-surface farina.

<i>Alsophila</i> (plant) Genus of ferns

Alsophila is a genus of tree ferns in the family Cyatheaceae. It has also been considered to be a section in the subgenus Cyathea of the genus Cyathea.

<i>Dennstaedtia</i> Genus of ferns

Dennstaedtia is a mostly tropical and subtropical genus of ferns described as a genus in 1801. hayscented fern, or cup ferns, are common names for some species in this genus. It includes 58 species native to the tropical Americas, Madagascar, southern and eastern Asia, Australia, New Guinea, and the Pacific Islands.

<i>Pleopeltis</i> Genus of ferns

Pleopeltis is a genus of ferns in the family Polypodiaceae, subfamily Polypodioideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). The genus widely distributed in tropical regions of the world, and also north into temperate regions in eastern North America and eastern Asia. Several species are known by the common name scaly polypody and resurrection fern.

<i>Campyloneurum</i> Genus of ferns

Campyloneurum is a genus of ferns in the family Polypodiaceae, subfamily Polypodioideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). They are commonly known as strap ferns.

<i>Hymenophyllum</i> Genus of plants

Hymenophyllum is a genus of ferns in the family Hymenophyllaceae. Its name means "membranous leaf", referring to the very thin translucent tissue of the fronds, which gives rise to the common name filmy fern for this and other thin-leaved ferns. The leaves are generally only one cell thick and lack stomata, making them vulnerable to desiccation. Consequently, they are found only in very humid areas, such as in moist forests and among sheltered rocks. They are small and easy to overlook.

<i>Tectaria</i> Genus of ferns

Tectaria is a genus of fern in the family Tectariaceae, according to the Pteridophyte Phylogeny Group classification of 2016. Halberd fern is a common name for species in this genus.

<i>Christella</i> Genus of ferns

Christella is a genus of around 70-80 species of ferns in the subfamily Thelypteridoideae of the family Thelypteridaceae in the Pteridophyte Phylogeny Group classification of 2016. Other sources sink Christella into a very broadly defined genus Thelypteris. The genus was named after Konrad H. Christ, a Swiss botanist. The distribution of these plants is mostly in the tropics and sub tropical areas. An Australian example is C. dentata.

<i>Doryopteris</i> Genus of ferns

Doryopteris is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae.

<i>Adiantopsis</i> Genus of ferns

Adiantopsis is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae.

<i>Pityrogramma</i> Genus of ferns

Pityrogramma, the silverback ferns, or goldback ferns, is a fern genus in the subfamily Pteridoideae of the family Pteridaceae.

<i>Polypodium</i> Genus of ferns in the family Polypodiaceae

Polypodium is a genus of ferns in the family Polypodiaceae, subfamily Polypodioideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). The genus is widely distributed throughout the world, with the highest species diversity in the tropics. The name is derived from Ancient Greek poly (πολύ) "many" + podion (πόδιον) "little foot", on account of the foot-like appearance of the rhizome and its branches. They are commonly called polypodies or rockcap ferns, but for many species unique vernacular names exist.

<i>Amauropelta</i> Genus of ferns

Amauropelta is a genus of ferns in the family Thelypteridaceae, subfamily Thelypteridoideae, in the Pteridophyte Phylogeny Group classification of 2016. Other sources sink the genus into a very broadly defined genus Thelypteris.

<i>Goniopteris</i> Genus of ferns

Goniopteris is a genus of ferns in the family Thelypteridaceae, subfamily Thelypteridoideae, in the Pteridophyte Phylogeny Group classification of 2016. Other sources sink Goniopteris into a very broadly defined genus Thelypteris.

References

  1. 1 2 "Genus: Cheilanthes Sw". Germplasm Resources Information Network. United States Department of Agriculture. 2007-10-05. Archived from the original on 2015-09-23. Retrieved 2011-06-07.
  2. "Cheilanthes". Integrated Taxonomic Information System . Retrieved 2011-10-23.
  3. Moran, Robbin Craig (2004). A Natural History of Ferns. Timber Press. p. 94. ISBN   978-0-88192-667-5.
  4. 1 2 Hassler, Michael & Schmitt, Bernd (November 2019). "Search for Cheilanthes". Checklist of Ferns and Lycophytes of the World. 8.11. Archived from the original on 2017-09-02. Retrieved 2020-01-02.
  5. Hassler, Michael & Schmitt, Bernd (November 2019). "Search for Cheilanthes Sw.". Checklist of Ferns and Lycophytes of the World. 8.11. Archived from the original on 2017-09-02. Retrieved 2020-01-02.
  6. Based on searching for all Cheilanthes species and removing those found by searching for "Cheilanthes Sw." in the Checklist of Ferns and Lycophytes of the World. [4]