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Lomariopsidaceae
The Lomariopsidaceae is a family of ferns with a largely tropical distribution. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the family is placed in the suborder Polypodiineae (eupolypods I) of the order Polypodiales. Alternatively, it may be treated as the subfamily Lomariopsidoideae of a very broadly defined family Polypodiaceae '' sensu lato''. Genera The Pteridophyte Phylogeny Group classification of 2016 (PPG I) included four genera. ''Dryopolystichum'' was added in 2017, and ''Thysanosoria'' is now included in ''Lomariopsis'', so that four genera are recognized : *'' Cyclopeltis'' J.Sm. *'' Dracoglossum'' Christenh. *'' Dryopolystichum'' Copel. *'' Lomariopsis'' Fée (including ''Thysanosoria'') The genus '' Nephrolepis'' has also been placed in this family, but it is now placed in its own family, Nephrolepidaceae. Some members of the Lomariopsidaceae are cultivated as ornamental plant Ornamental plants or ''garden plants'' are plants th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polypodiales
The Order (biology), order Polypodiales encompasses the major lineages of polypod ferns, which comprise more than 80% of today's fern species. They are found in many parts of the world including Tropics, tropical, semitropical and Temperate climate, temperate areas. Description Polypodiales are unique in bearing sporangia with a vertical Annulus (botany), annulus interrupted by the stalk and stomium. These sporangial characters were used by Johann Jakob Bernhardi to define a group of ferns he called the "Cathetogyratae"; the Pteridophyte Phylogeny Group has suggested reviving this name as the informal term cathetogyrates, to replace the ambiguously circumscribed term "polypods" when referring to the Polypodiales. The sporangia are born on stalks 1–3 cells thick and are often long-stalked. (In contrast, the Hymenophyllales have a stalk composed of four rows of cells.) The sporangia do not reach maturity simultaneously. Many groups in the order lack Sorus, indusia, but when presen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polypodiineae
Polypodiineae is a suborder of ferns in the order Polypodiales. It is equivalent to the clade eupolypods I in earlier systems, and to the very broadly defined family Polypodiaceae in the classification of Christenhusz & Chase (2014). It probably diverged from the suborder Aspleniineae (eupolypods II) during the mid-Cretaceous. The divergence is supported by both molecular data and an often overlooked morphological characteristic which lies in the vasculature of the petiole. Most species that make up the suborder have three vascular bundles. The only exceptions are the grammitid ferns which have one, and the genus '' Hypodematium'' which has two. This differs from eupolypods II which mostly have two vascular bundles (except the well-nested blechnoid ferns which generally have at least three). Taxonomy In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the group is treated as the suborder Polypodiineae, and divided into 11 families. Alternatively, it may be t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dryopolystichum
''Dryopolystichum'' is a genus of ferns in the family Lomariopsidaceae, with a single species ''Dryopolystichum phaeostigma''. Taxonomy The genus ''Dryopolystichum'' was first erected by Edwin Copeland in 1947 for the species ''Aspidium phaeostigma''. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the genus was placed in the family Dryopteridaceae, although left unplaced as to subfamily. It has since been transferred to the family Lomariopsidaceae as a result of molecular phylogenetic Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ... evidence. References Polypodiales Monotypic fern genera Taxa named by Vincenzo de Cesati {{Polypodiales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dracoglossum
''Dracoglossum'' is a small genus of ferns in the family Lomariopsidaceae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). It is native to the Neotropics of the Americas. Taxonomy ''Dracoglossum'' was originally treated in ''Tectaria'', but is not related and was therefore placed in the family Dryopteridaceae. It appears to be most closely related to the genus '' Lomariopsis''.Maarten J.M. Christenhusz. 2007. "''Dracoglossum'', a new Neotropical fern genus (Pteridophyta)". ''Thaiszia Journal of Botany'' 17:1-10. (See ''External links'' below). Molecular evidence has confirmed this placement and it is now firmly placed in family Lomariopsidaceae, with which it shares characters of habit and stelar structure. Species , the ''Checklist of Ferns and Lycophytes of the World'' and ''Plants of the World Online'' recognized two species: *'' Dracoglossum plantagineum'' (Jacq.) Christenh. — Central America, the Lesser Antilles, Puerto Rico, and sub-And ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lomariopsis Marginata
''Lomariopsis marginata'' is a fern in the family Lomariopsidaceae. It is native to Brazil and possibly French Guiana French Guiana, or Guyane in French, is an Overseas departments and regions of France, overseas department and region of France located on the northern coast of South America in the Guianas and the West Indies. Bordered by Suriname to the west .... References Polypodiales {{Polypodiales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pteridophyte Phylogeny Group
The Pteridophyte Phylogeny Group (PPG) is an informal international group of systematic botanists who collaborate to establish on the classification of pteridophytes ( lycophytes and ferns) that reflects knowledge about plant relationships discovered through phylogenetic studies. In 2016, the group published a classification for extant pteridophytes, termed "PPG I". The paper had 94 authors (26 principal and 68 additional). The classification was presented as a consensus classification supported by the community of fern taxonomists. Alternative classifications of ferns exist and are preferred by some. PPG I A first classification, PPG I, was produced in 2016, covering only extant (living) pteridophytes. The classification was rank-based, using the ranks of class, subclass, order, suborder, family, subfamily and genus. Phylogeny The classification was based on a consensus phylogeny, shown below to the level of order. The very large order Polypodiales was divided into two subord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fern
The ferns (Polypodiopsida or Polypodiophyta) are a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. They differ from mosses by being vascular, i.e., having specialized tissues that conduct water and nutrients, and in having life cycles in which the branched sporophyte is the dominant phase. Ferns have complex leaf, leaves called megaphylls that are more complex than the microphylls of clubmosses. Most ferns are leptosporangiate ferns. They produce coiled Fiddlehead fern, fiddleheads that uncoil and expand into fronds. The group includes about 10,560 known extant species. Ferns are defined here in the broad sense, being all of the Polypodiopsida, comprising both the leptosporangiate (Polypodiidae (plant), Polypodiidae) and eusporangiate ferns, the latter group including horsetails, Psilotaceae, whisk ferns, marattioid ferns, and ophioglossoid ferns. The fern crown group, consisting of the leptosporangiates and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lomariopsis
''Lomariopsis'' is the type genus of the fern family Lomariopsidaceae. One economically important species exists via the freshwater aquarium plant trade, having only just been introduced in 2001 as an aquatic gametophyte form; most commonly known as "'' süsswassertang''" (German for "freshwater seaweed"), this plant was initially believed to be some sort of liverwort. However, it is closely allied to '' Lomariopsis lineata'', but has not yet been named as a distinct species. Taxonomy Phylogeny Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species: *'' Lomariopsis amydrophlebia'' ( Sloss. ex Maxon) Holttum *'' Lomariopsis boivinii'' Holttum *'' Lomariopsis boninensis'' Nakai *'' Lomariopsis brackenridgei'' Carruth. *'' Lomariopsis chinensis'' Ching *'' Lomariopsis christensenii'' Rakotondr. *'' Lomariopsis commersonii'' Rakotondr. *'' Lomariopsis congoensis'' Holttum *'' Lomariopsis cordata'' (Bonap.) Alston *'' Lomariopsis crassifol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclopeltis
''Cyclopeltis'' is a genus of ferns in the family Lomariopsidaceae according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). Taxonomy ''Cyclopeltis'' was first described by John Smith in 1846. Phylogeny , the ''Checklist of Ferns and Lycophytes of the World'' and ''Plants of the World Online Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online i ...'' recognized the following species: References Polypodiales Fern genera {{Polypodiales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical
The tropics are the regions of Earth surrounding the equator, where the sun may shine directly overhead. This contrasts with the temperate or polar regions of Earth, where the Sun can never be directly overhead. This is because of Earth's axial tilt; the width of the tropics (in latitude) is twice the tilt. The tropics are also referred to as the tropical zone and the torrid zone (see geographical zone). Due to the overhead sun, the tropics receive the most solar energy over the course of the year, and consequently have the highest temperatures on the planet. Even when not directly overhead, the sun is still close to overhead throughout the year, therefore the tropics also have the lowest seasonal variation on the planet; "winter" and "summer" lose their temperature contrast. Instead, seasons are more commonly divided by precipitation variations than by temperature variations. The tropics maintain wide diversity of local climates, such as rain forests, monsoons, sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur Hugh Garfit Alston
Arthur Hugh Garfit Alston (born in West Ashby on 4 September 1902; died in Barcelona on 17 March 1958) was an English botanist. Education and career His father was a vicar and amateur naturalist who first got him interested in the field. A.H.G. Alston later received his B.A. from the University of Oxford. He went on to work at the Royal Botanic Gardens, Kew and the colonial Department of Agriculture in Ceylon. He joined the Linnean Society of London in 1927. This botanist is denoted by the author abbreviation when citing a botanical name A botanical name is a formal scientific name conforming to the ''International Code of Nomenclature for algae, fungi, and plants'' (ICN) and, if it concerns a plant cultigen, the additional cultivar or cultivar group, Group epithets must conform t .... References 1902 births 1958 deaths Alumni of Lincoln College, Oxford Botanists with author abbreviations Fellows of the Linnean Society of London People from East Lindsey Dist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polypodiaceae
Polypodiaceae is a Family (biology), family of ferns. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the family includes around 65 genus, genera and an estimated 1,650 species and is placed in the order Polypodiales, suborder Polypodiineae. A broader Circumscription (taxonomy), circumscription has also been used, in which the family includes other families kept separate in PPG I. Nearly all species are epiphytes, but some are terrestrial. Description Stems of Polypodiaceae range from erect to long-creeping. The fronds are entire, pinnatifid, or variously forked or pinnate. The Petiole (botany), petioles lack stipules. The scaly rhizomes are generally creeping in nature. Polypodiaceae species are found in wet climates, most commonly in rain forests. In temperate zones, most species tend to be epiphytic or epipetric. Notable examples of ferns in this family include the resurrection fern (''Pleopeltis polypodioides'') and the golden serpent fern (''Phlebodium au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
