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Mildella Intramarginalis
''Mildella'' is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae. Species are native to Mexico, Central America and the Caribbean. Species The Pteridophyte Phylogeny Group classification of 2016 (PPG I) placed seven species in the genus, although recognizing that the genus was then not monophyletic, since the New and Old World species belonged in different clades. , the ''Checklist of Ferns and Lycophytes of the World'' placed only two New World species in the genus: *''Mildella fallax ''Mildella'' is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae. Species are native to Mexico, Central America and the Caribbean. Species The Pteridophyte Phylogeny Group classification of 2016 (PPG I) placed seven sp ...'' (M.Martens & Galeotti) G.L.Nesom *'' Mildella intramarginalis'' (Kaulf. ex Link) Trevis. The ''Checklist of Ferns and Lycophytes of the World'' placed former ''Mildella'' species in the genus '' Oeosporangium'': *''Milde ...
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Mildella Fallax
''Mildella'' is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae. Species are native to Mexico, Central America and the Caribbean. Species The Pteridophyte Phylogeny Group classification of 2016 (PPG I) placed seven species in the genus, although recognizing that the genus was then not Monophyly, monophyletic, since the New World, New and Old World species belonged in different clades. , the ''Checklist of Ferns and Lycophytes of the World'' placed only two New World species in the genus: *''Mildella fallax'' (M.Martens & Galeotti) G.L.Nesom *''Mildella intramarginalis'' (Kaulf. ex Link) Trevis. The ''Checklist of Ferns and Lycophytes of the World'' placed former ''Mildella'' species in the genus ''Oeosporangium'': *''Mildella henryi'' (Christ) C.C.Hall & Lellinger = ''Oeosporangium nitidulum'' *''Mildella mairei'' (Brause) C.C.Hall & Lellinger = ''Oeosporangium mairei'' *''Mildella nitidula'' (Wall. ex Hook.) C.C. Hall & Lellinger = ''Oeosporangium nit ...
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Mildella Intramarginalis
''Mildella'' is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae. Species are native to Mexico, Central America and the Caribbean. Species The Pteridophyte Phylogeny Group classification of 2016 (PPG I) placed seven species in the genus, although recognizing that the genus was then not monophyletic, since the New and Old World species belonged in different clades. , the ''Checklist of Ferns and Lycophytes of the World'' placed only two New World species in the genus: *''Mildella fallax ''Mildella'' is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae. Species are native to Mexico, Central America and the Caribbean. Species The Pteridophyte Phylogeny Group classification of 2016 (PPG I) placed seven sp ...'' (M.Martens & Galeotti) G.L.Nesom *'' Mildella intramarginalis'' (Kaulf. ex Link) Trevis. The ''Checklist of Ferns and Lycophytes of the World'' placed former ''Mildella'' species in the genus '' Oeosporangium'': *''Milde ...
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Oeosporangium Stramineum
''Oeosporangium'' is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae. The genus has not always been recognized. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I) it was included in ''Allosorus'' (a genus since subsumed into ''Aleuritopteris''). It was accepted by the ''Checklist of the Ferns and Lycophytes of the World'' . As circumscribed there, the genus is native to the Old World The "Old World" is a term for Afro-Eurasia that originated in Europe , after Europeans became aware of the existence of the Americas. It is used to contrast the continents of Africa, Europe, and Asia, which were previously thought of by the .... Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Oeosporangium belangeri'' (Bory) Fraser-Jenk. *'' Oeosporangium chinense'' (Baker) Fraser-Jenk. *'' Oeosporangium chusanum'' (Hook.) Fraser-Jenk. *'' Oeosporangium contiguum'' (Baker) Fraser-Jenk. *'' Oeo ...
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Oeosporangium Smithii
''Oeosporangium'' is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae. The genus has not always been recognized. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I) it was included in ''Allosorus'' (a genus since subsumed into ''Aleuritopteris''). It was accepted by the ''Checklist of the Ferns and Lycophytes of the World'' . As circumscribed there, the genus is native to the Old World. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Oeosporangium belangeri'' (Bory) Fraser-Jenk. *'' Oeosporangium chinense'' (Baker) Fraser-Jenk. *'' Oeosporangium chusanum'' (Hook.) Fraser-Jenk. *'' Oeosporangium contiguum'' (Baker) Fraser-Jenk. *'' Oeosporangium coriaceum'' (Decne.) Fraser-Jenk. & Pariyar *'' Oeosporangium delicatulum'' (Tagawa & K.Iwats.) Fraser-Jenk. & Pariyar *'' Oeosporangium elegans'' (Poir.) Fraser-Jenk. & Pariyar *'' Oeosporangium fragile'' (Hook.) Fraser-Jenk. *'' Oeosporangiu ...
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Oeosporangium Pauperculum
''Oeosporangium'' is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae. The genus has not always been recognized. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I) it was included in ''Allosorus'' (a genus since subsumed into ''Aleuritopteris''). It was accepted by the ''Checklist of the Ferns and Lycophytes of the World'' . As circumscribed there, the genus is native to the Old World. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Oeosporangium belangeri'' (Bory) Fraser-Jenk. *'' Oeosporangium chinense'' (Baker) Fraser-Jenk. *'' Oeosporangium chusanum'' (Hook.) Fraser-Jenk. *'' Oeosporangium contiguum'' (Baker) Fraser-Jenk. *'' Oeosporangium coriaceum'' (Decne.) Fraser-Jenk. & Pariyar *'' Oeosporangium delicatulum'' (Tagawa & K.Iwats.) Fraser-Jenk. & Pariyar *'' Oeosporangium elegans'' (Poir.) Fraser-Jenk. & Pariyar *'' Oeosporangium fragile'' (Hook.) Fraser-Jenk. *'' Oeosporangiu ...
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Oeosporangium Mairei
''Oeosporangium'' is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae. The genus has not always been recognized. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I) it was included in ''Allosorus'' (a genus since subsumed into ''Aleuritopteris''). It was accepted by the ''Checklist of the Ferns and Lycophytes of the World'' . As circumscribed there, the genus is native to the Old World. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Oeosporangium belangeri'' (Bory) Fraser-Jenk. *'' Oeosporangium chinense'' (Baker) Fraser-Jenk. *'' Oeosporangium chusanum'' (Hook.) Fraser-Jenk. *'' Oeosporangium contiguum'' (Baker) Fraser-Jenk. *'' Oeosporangium coriaceum'' (Decne.) Fraser-Jenk. & Pariyar *'' Oeosporangium delicatulum'' (Tagawa & K.Iwats.) Fraser-Jenk. & Pariyar *'' Oeosporangium elegans'' (Poir.) Fraser-Jenk. & Pariyar *'' Oeosporangium fragile'' (Hook.) Fraser-Jenk. *'' Oeosporangiu ...
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Oeosporangium Nitidulum
''Oeosporangium'' is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae. The genus has not always been recognized. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I) it was included in ''Allosorus'' (a genus since subsumed into ''Aleuritopteris''). It was accepted by the ''Checklist of the Ferns and Lycophytes of the World'' . As circumscribed there, the genus is native to the Old World. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Oeosporangium belangeri'' (Bory) Fraser-Jenk. *'' Oeosporangium chinense'' (Baker) Fraser-Jenk. *'' Oeosporangium chusanum'' (Hook.) Fraser-Jenk. *'' Oeosporangium contiguum'' (Baker) Fraser-Jenk. *'' Oeosporangium coriaceum'' (Decne.) Fraser-Jenk. & Pariyar *'' Oeosporangium delicatulum'' (Tagawa & K.Iwats.) Fraser-Jenk. & Pariyar *'' Oeosporangium elegans'' (Poir.) Fraser-Jenk. & Pariyar *'' Oeosporangium fragile'' (Hook.) Fraser-Jenk. *'' Oeosporangiu ...
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Oeosporangium
''Oeosporangium'' is a genus of ferns in the subfamily Cheilanthoideae of the family Pteridaceae. The genus has not always been recognized. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I) it was included in ''Allosorus'' (a genus since subsumed into ''Aleuritopteris''). It was accepted by the ''Checklist of the Ferns and Lycophytes of the World'' . As circumscribed there, the genus is native to the Old World. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Oeosporangium belangeri'' (Bory) Fraser-Jenk. *'' Oeosporangium chinense'' (Baker) Fraser-Jenk. *'' Oeosporangium chusanum'' (Hook.) Fraser-Jenk. *'' Oeosporangium contiguum'' (Baker) Fraser-Jenk. *'' Oeosporangium coriaceum'' (Decne.) Fraser-Jenk. & Pariyar *'' Oeosporangium delicatulum'' (Tagawa & K.Iwats.) Fraser-Jenk. & Pariyar *'' Oeosporangium elegans'' (Poir.) Fraser-Jenk. & Pariyar *'' Oeosporangium fragile'' (Hook.) Fraser-Jenk. *'' Oeosporangiu ...
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Clade
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, the equivalent Latin term ''cladus'' (plural ''cladi'') is often used in taxonomical literature. The common ancestor may be an individual, a population, or a species (extinct or extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed monophyletic (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming taxa that are not clades; that is, taxa that are not monophyletic. Some of the relationships between organisms ...
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Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ...
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Old World
The "Old World" is a term for Afro-Eurasia that originated in Europe , after Europeans became aware of the existence of the Americas. It is used to contrast the continents of Africa, Europe, and Asia, which were previously thought of by their inhabitants as comprising the entire world, with the "New World", a term for the newly encountered lands of the Western Hemisphere, particularly the Americas. Etymology In the context of archaeology and world history, the term "Old World" includes those parts of the world which were in (indirect) cultural contact from the Bronze Age onwards, resulting in the parallel development of the early civilizations, mostly in the temperate zone between roughly the 45th and 25th parallels north, in the area of the Mediterranean, including North Africa. It also included Mesopotamia, the Persian plateau, the Indian subcontinent, China, and parts of Sub-Saharan Africa. These regions were connected via the Silk Road trade route, and they have a p ...
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New World
The term ''New World'' is often used to mean the majority of Earth's Western Hemisphere, specifically the Americas."America." ''The Oxford Companion to the English Language'' (). McArthur, Tom, ed., 1992. New York: Oxford University Press, p. 33: "[16c: from the feminine of ''Americus'', the Latinized first name of the explorer Amerigo Vespucci (1454–1512). The name ''America'' first appeared on a map in 1507 by the German cartographer Martin Waldseemüller, referring to the area now called Brazil]. Since the 16c, a name of the western hemisphere, often in the plural ''Americas'' and more or less synonymous with ''the New World''. Since the 18c, a name of the United States of America. The second sense is now primary in English: ... However, the term is open to uncertainties: ..." The term gained prominence in the early 16th century, during Europe's Age of Discovery, shortly after the Italian explorer Amerigo Vespucci concluded that America (now often called ''the Am ...
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