| Bommeria elegans | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Family: | Pteridaceae |
| Genus: | Bommeria |
| Species: | B. elegans |
| Binomial name | |
| Bommeria elegans | |
| Synonyms | |
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Bommeria elegans is a species of ferns, native to Mexico.
In biology, a rachis is a main axis or "shaft".
Thyrsopteris is a genus of tree fern. It contains a single living species, Thyrsopteris elegans, endemic to the Juan Fernandez Archipelago off the coast of Chile. Thyrsopteris is the only genus in the family Thyrsopteridaceae in the Pteridophyte Phylogeny Group classification of 2016. Alternatively, the genus may be placed in the subfamily Thyrsopteridoideae of a more broadly defined family Cyatheaceae, the family placement used in Plants of the World Online as of November 2019. The oldest records of the genus are the species Thyrsopteris cretacea and Thyrsopteris cyathindusia which were described from the Burmese amber of Myanmar, dating to the Cenomanian of the Cretaceous period, around 99 million years ago. Other fossil species include Thyrsopteris antiqua from the Upper Cretaceous of Chile aandThyrsopteris shenii from the Paleogene of King George Island, Antarctica A thyrsopterid rachis is also known from the Upper Cretaceous of Japan.
Pteridaceae is a family of ferns in the order Polypodiales, including some 1150 known species in ca 45 genera, divided over five subfamilies. The family includes four groups of genera that are sometimes recognized as separate families: the adiantoid, cheilanthoid, pteridoid, and hemionitidoid ferns. Relationships among these groups remain unclear, and although some recent genetic analyses of the Pteridales suggest that neither the family Pteridaceae nor the major groups within it are all monophyletic, as yet these analyses are insufficiently comprehensive and robust to provide good support for a revision of the order at the family level.
"Jawaharlal Nehru Tropical Botanic Garden and Research Institute", renamed in the fond memory of visionary Prime Minister of India Shri Pandit Jawaharlal Nehru is an autonomous Institute established by the Government of Kerala on 17 November 1979 at Thiruvananthapuram, the capital city of Kerala. It functions under the umbrella of the Kerala State Council for Science, Technology and Environment (KSCSTE), Government of Kerala. The Royal Botanic Gardens (RBG), Kew played an exemplary and significant role in shaping and designing the lay out of the JNTBGRI garden in its formative stages.
Montagne d'Ambre National Park is a national park in the Diana Region of northern Madagascar. The park is known for its endemic flora and fauna, water falls and crater lakes. It is 1,000 kilometres (620 mi) north of the capital, Antananarivo and is one of the most biologically diverse places in all of Madagascar with seventy-five species of birds, twenty-five species of mammals, and fifty-nine species of reptiles known to inhabit the park.
Saccoloma is a fern genus in family Saccolomataceae. It is the only genus in the family in the Pteridophyte Phylogeny Group classification of 2016, but further investigation is needed. It is pantropical and its species are found in wet, shaded forest areas. Saccoloma species are characterized by an omega-shaped (Ω) vascular bundle in the cross-sections of their petioles. The common name soralpouch fern is used for Saccoloma.
Bommeria is a genus of small pteridaceous rock ferns, native to the New World. Genetic analysis has shown it to be a stem offshoot clade of all the cheilanthoid ferns, except for Doryopteris, which is an even more basal ("primitive") stem offshoot. for years, it was assumed that this genus was closely allied with Hemionitis, but genetic analysis has shown that genus to be a more advanced genus evolutionarily. The same set of analysis has shown many presumed genera within this family to be paraphyletic, but the small genus Bommeria appears to be monophyletic, or a natural genus.
Schizaea is a small genus of specialized ferns in the family Schizaeaceae. Common names include curlygrass fern and comb fern. Some species are very small and inconspicuous, and so may often be overlooked in nature. The genus is distinctive and not at all like the common conception of a fern, though it is still considered a true fern (leptosporangiate). The sterile fronds (trophophylls) are grass-like, and the spore-bearing fertile frond (sporophyll) is similar, but with a small, pinnate fertile segment at its apex. The upper surface of the pinnules bear the sessile capsules. Various of the roughly two dozen species have been reported from widely separated regions, including much of the tropical Old and New World, parts of the Eastern USA, Chile, the Falkland Islands, and various Pacific islands, including several islands of New Caledonia, as well as Australia and New Zealand. In Africa at least two species are endemic to South Africa.
Campyloneurum phyllitidis, commonly known as the long strap fern, is a species of fern in the family Polypodiaceae.
Matoniaceae is one of the three families of ferns in the Gleicheniales order of the Polypodiopsida class. Fossil records reveal that Matoniaceae ferns were abundant during the Mesozoic era, during which they lived on every continent, including Antarctica, with eight genera and 26 species, with the oldest known specimens being from the Middle Triassic of Antarctica. Today the family is much less abundant, and also less diverse, with only two extant genera and four species, which are limited to portions of southeastern Asia.
Cheilanthoideae is one of the five subfamilies of the fern family Pteridaceae. The subfamily is thought to be monophyletic, but some of the genera into which it has been divided are not, and the taxonomic status of many of its genera and species remains uncertain, with radically different approaches in use as of December 2019.
Cephalomanes is a fern genus in the family Hymenophyllaceae. The genus is accepted in the Pteridophyte Phylogeny Group classification of 2016 but not by other sources, which sink it into a broadly defined Trichomanes.
Trichomanes elegans is a fern species in the family Hymenophyllaceae. The name has also been used incorrectly for two different species.
Joseph (Jean) Édouard Bommer was a Belgian botanist specializing in the field of pteridology. He was the husband of mycologist Elise Caroline Destrée de Bommer (1832-1910).
Dissotis is a genus of plants in the family Melastomataceae. There are about 49 accepted species, which are distributed across most of Africa, except Northern Africa.
Cyclopteris is an extinct genus of seed ferns in the extinct family †Cyclopteridaceae. Species are from the Carboniferous.
Cyclosorus elegans is a species of ferns in the Thelypteridaceae. It is found in China.
Arthromeris elegans is a species of ferns in the subfamily Drynarioideae. It is found in Burma and China.
Saurauia elegans is a species of plant in the family Annonaceae. It is native to The Philippines. In The Philippines it is commonly called Uyok and is used as a traditional medicine for lung ailments and also to decorate food dishes.
Plenasium is a genus of ferns in the family Osmundaceae. It is recognized in the Pteridophyte Phylogeny Group classification of 2016 (PPG I), but kept within a more broadly circumscribed genus Osmunda by other sources. The genus is known from Early Cretaceous to present.
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