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Jamesonia Angusta
''Jamesonia'' is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. It now includes the formerly separate genus ''Eriosorus''. Description Species of ''Jamesonia'' are terrestrial or grow on rocks. They vary considerably in their detailed morphology. The rhizomes are short, dark brown, and creeping, with a more or less dense covering of hairs and bristles. The fertile and infertile fronds are similar. Species show one of two different frond morphologies, related to habitat. These were formerly used to distinguish ''Jamesonia'' and ''Eriosorus'', but do not correspond to the evolutionary history of the species. Species with "''Jamesonia''-type" morphology have many fronds with short, often leathery pinnae, and are associated with exposed habitats. Species with "''Eriosorus''-type" morphology have fewer fronds with longer, thinner pinnae, and are associated with more sheltered areas including cloud forests. The stalks ( petioles and rachises) of the frond are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cerro De La Muerte
Cerro de la Muerte is a mountain peak of a massif in Costa Rica, it is located within the Tapantí — Cerro de la Muerte Massif National Park, and is the highest point on the Pan-American Highway. Toponymy Its name means "Mountain of Death", "Hill of Death" or "Summit of Death," since in the past crossing the mountains from the Valle Central meant a three- or four-day journey, on foot or on horseback, and many ill-prepared travelers succumbed to the cold and rain. However, the peak is now easily accessible since the Route 2 runs close by. Description A drivable track from the highway (Kilometer 89) leads to a peak, with its cluster of telecommunications aerials. A short hike is also available from the highway to another peak marked with a barrel. A sign marks the high point of the highway (Route 2) at , from where the vehicle track and hiking trail begin. At this altitude, overnight temperatures can dip below freezing, but the sun soon raises the temperatures in the morning, wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scotland
Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to the north and west, the North Sea to the northeast and east, and the Irish Sea to the south. It also contains more than 790 islands, principally in the archipelagos of the Hebrides and the Northern Isles. Most of the population, including the capital Edinburgh, is concentrated in the Central Belt—the plain between the Scottish Highlands and the Southern Uplands—in the Scottish Lowlands. Scotland is divided into 32 administrative subdivisions or local authorities, known as council areas. Glasgow City is the largest council area in terms of population, with Highland being the largest in terms of area. Limited self-governing power, covering matters such as education, social services and roads and transportation, is devolved from the Scott ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jamesonia Angusta
''Jamesonia'' is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. It now includes the formerly separate genus ''Eriosorus''. Description Species of ''Jamesonia'' are terrestrial or grow on rocks. They vary considerably in their detailed morphology. The rhizomes are short, dark brown, and creeping, with a more or less dense covering of hairs and bristles. The fertile and infertile fronds are similar. Species show one of two different frond morphologies, related to habitat. These were formerly used to distinguish ''Jamesonia'' and ''Eriosorus'', but do not correspond to the evolutionary history of the species. Species with "''Jamesonia''-type" morphology have many fronds with short, often leathery pinnae, and are associated with exposed habitats. Species with "''Eriosorus''-type" morphology have fewer fronds with longer, thinner pinnae, and are associated with more sheltered areas including cloud forests. The stalks ( petioles and rachises) of the frond are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jamesonia Alstonii
''Jamesonia'' is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. It now includes the formerly separate genus ''Eriosorus''. Description Species of ''Jamesonia'' are terrestrial or grow on rocks. They vary considerably in their detailed morphology. The rhizomes are short, dark brown, and creeping, with a more or less dense covering of hairs and bristles. The fertile and infertile fronds are similar. Species show one of two different frond morphologies, related to habitat. These were formerly used to distinguish ''Jamesonia'' and ''Eriosorus'', but do not correspond to the evolutionary history of the species. Species with "''Jamesonia''-type" morphology have many fronds with short, often leathery pinnae, and are associated with exposed habitats. Species with "''Eriosorus''-type" morphology have fewer fronds with longer, thinner pinnae, and are associated with more sheltered areas including cloud forests. The stalks ( petioles and rachises) of the frond are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jamesonia Accrescens
''Jamesonia'' is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. It now includes the formerly separate genus ''Eriosorus''. Description Species of ''Jamesonia'' are terrestrial or grow on rocks. They vary considerably in their detailed morphology. The rhizomes are short, dark brown, and creeping, with a more or less dense covering of hairs and bristles. The fertile and infertile fronds are similar. Species show one of two different frond morphologies, related to habitat. These were formerly used to distinguish ''Jamesonia'' and ''Eriosorus'', but do not correspond to the evolutionary history of the species. Species with "''Jamesonia''-type" morphology have many fronds with short, often leathery pinnae, and are associated with exposed habitats. Species with "''Eriosorus''-type" morphology have fewer fronds with longer, thinner pinnae, and are associated with more sheltered areas including cloud forests. The stalks ( petioles and rachises) of the frond are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austrogramme
''Austrogramme'' is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. Species , ''Plants of the World Online Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by ...'' and the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Austrogramme asplenioides'' (Holttum) Hennipman *'' Austrogramme boerlageana'' (Alderw.) Hennipman *'' Austrogramme decipiens'' (Mett.) Hennipman *'' Austrogramme francii'' (Rosenst.) Hennipman *'' Austrogramme luzonica'' (Alderw.) M.Kato *'' Austrogramme marginata'' E.Fourn. References Pteridaceae Fern genera {{Pteridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syngramma
''Syngramma'' is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. Species are native to south-east tropical Asia and the Pacific. Species , ''Plants of the World Online Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by ...'' and the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Syngramma alismifolia'' (C.Presl) J.Sm. *'' Syngramma alta'' Copel. *'' Syngramma borneensis'' (Hook.) J.Sm. *'' Syngramma cartilagidens'' (Baker) Diels *'' Syngramma coriacea'' (Copel.) Holttum *'' Syngramma dayi'' Bedd. *'' Syngramma grandis'' (Copel.) C.Chr. *'' Syngramma lobbiana'' (Hook.) J.Sm. *'' Syngramma magnifica'' (Copel.) Holttum *'' Syngramma minima'' Holttum *'' Syngramma quinata'' (Hook.) Carruth. *'' Syngramma spathulata'' (C.C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taenitis
''Taenitis'' is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. Species are native to south-east tropical Asia, Australia and the Pacific. Species , ''Plants of the World Online Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by ...'' and the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Taenitis blechnoides'' (Willd.) Sw. *'' Taenitis brooksii'' Copel. *'' Taenitis cordata'' (Gaudich.) Holttum *'' Taenitis dimorpha'' Holttum *'' Taenitis diversifolia'' Holttum *'' Taenitis flabellivenia'' (Baker) Holttum *'' Taenitis hookeri'' (C.Chr.) Holttum *'' Taenitis hosei'' (Baker) Holttum *'' Taenitis intermedia'' M.Kato *'' Taenitis interrupta'' Hook. & Grev. *'' Taenitis marginata'' Holttum *'' Taenitis mediosora'' M.Kato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tryonia (plant)
''Tryonia'' is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. Species are native to the east of Brazil and to Uruguay. The genus was circumscribed by Eric Schuettpelz, Jefferson Prado and Alyssa T. Cochran in PhytoKeys vol.35 on page 35 in 2014. The genus name of ''Tryonia'' is in honour of Alice F. Tryon (1920–2009), who was an American botanist (mainly pteridology). She examined the taxonomy of the fern genera ''Jamesonia ''Jamesonia'' is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. It now includes the formerly separate genus ''Eriosorus''. Description Species of ''Jamesonia'' are terrestrial or grow on rocks. They vary considerably ...''. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Tryonia areniticola'' (Schwartsb. & Labiak) Schuettp., J.Prado & A.T.Cochran *'' Tryonia macrophylla'' A.Rojas *'' Tryonia myriophylla'' (Sw.) Schuettp., J.Prado & A.T.Cochr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pterozonium
''Pterozonium'' is a genus of ferns in the subfamily Pteridoideae of the family Pteridaceae. Species are mainly found in north-western South America, as well as Costa Rica. Species , ''Plants of the World Online Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by ...'' and the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Pterozonium brevifrons'' (A.C.Sm.) Lellinger *'' Pterozonium cyclophyllum'' Diels *'' Pterozonium cyclosorum'' A.C.Sm. *'' Pterozonium elaphoglossoides'' (Baker ex Thurn) Lellinger *'' Pterozonium lineare'' Lellinger *'' Pterozonium maguirei'' Lellinger *'' Pterozonium paraphysatum'' (A.C.Sm.) Lellinger *'' Pterozonium reniforme'' (Mart.) Fée *'' Pterozonium retroflexum'' Mickel *'' Pterozonium scopulinum'' Lellinger *'' Pte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyly
In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic groups are typically characterised by shared derived characteristics ( synapomorphies), which distinguish organisms in the clade from other organisms. An equivalent term is holophyly. The word "mono-phyly" means "one-tribe" in Greek. Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic group'' consists of all of the descendants of a common ancestor minus one or more monophyletic groups. A '' polyphyletic group'' is characterized by convergent features or habits of scientific interest (for example, night-active primates, fruit trees, aquatic insects). The features by which a polyphyletic group is differentiated from others are not inherited from a common ancestor. These definitions have taken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
