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Dendroconche Annabellae
''Dendroconche annabellae'' is a species of fern in the family Polypodiaceae, subfamily Microsoroideae. It is endemic to Papua New Guinea. Description ''Dendroconche annabellae'' has a partially epiphytic habit. It grows from long, creeping rhizomes, that are flattened from top to bottom and have occasional cavities. The rhizomes have dark brown scales, 4–7 mm long and 1.5–2.5 mm wide. Two kinds of root are produced by the rhizomes. Lateral roots clasp the tree on which the plant is growing. Roots emerging from the underside of the rhizome enter the soil. Leaves that do not produce spores (sterile leaves) are more or less circular in outline, 8–12 cm across, with at most a very short petiole, and are tightly pressed against the trunk of the supporting tree. The spore-bearing leaves (fertile leaves) have the same shape at the base, but then have a long narrow "tail", up to 28 cm long and 1 cm across, which curves away from the tree trunk and bears th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fern
A fern (Polypodiopsida or Polypodiophyta ) is a member of a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. The polypodiophytes include all living pteridophytes except the lycopods, and differ from mosses and other bryophytes 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 leaves called megaphylls, that are more complex than the microphylls of clubmosses. Most ferns are leptosporangiate ferns. They produce coiled 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) and eusporangiate ferns, the latter group including horsetails, whisk ferns, marattioid ferns, and ophioglossoid fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Ogg Forbes
Henry Ogg Forbes LLD (30 January 1851 – 27 October 1932) was a Scottish explorer, ornithologist, and botanist. He also described a new species of spider, '' Thomisus decipiens''. Biography Forbes was the son of Rev Alexander Forbes M.A. (1821–1897),Ewing, William ''Annals of the Free Church'' and his wife Mary ''née'' Ogg (1820–1862), and was born at Drumblade, Huntly, Aberdeenshire. Henry was educated at Aberdeen Grammar School, he then studied Medicine at the University of Aberdeen and the University of Edinburgh, An eye injury forced him to abandon his studies and he did not graduate. From 1875 he began collecting scientific samples: firstly in Portugal and from 1878 to 1884 he made extensive collections in Indonesia. Forbes was active primarily in the Moluccas, Sumatra and New Guinea. His unusual tasks there also included tracking down the murderers of Captain J. C. Craig on Joannet Island in his temporary capacity as a government agent. In 1887 he was appointed m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Guinea
New Guinea (; Hiri Motu: ''Niu Gini''; id, Papua, or , historically ) is the world's second-largest island with an area of . Located in Oceania in the southwestern Pacific Ocean, the island is separated from Australia by the wide Torres Strait, though both landmasses lie on the same continental shelf. Numerous smaller islands are located to the west and east. The eastern half of the island is the major land mass of the independent state of Papua New Guinea. The western half, known as Western New Guinea, forms a part of Indonesia and is organized as the provinces of Papua, Central Papua, Highland Papua, South Papua, Southwest Papua, and West Papua. The largest cities on the island are Jayapura (capital of Papua, Indonesia) and Port Moresby (capital of Papua New Guinea). Names The island has been known by various names: The name ''Papua'' was used to refer to parts of the island before contact with the West. Its etymology is unclear; one theory states that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Phylogenetics
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 determine the processes by which diversity among species has been achieved. The result of a molecular phylogenetic analysis is expressed in a phylogenetic tree. Molecular phylogenetics is one aspect of molecular systematics, a broader term that also includes the use of molecular data in taxonomy and biogeography. Molecular phylogenetics and molecular evolution correlate. Molecular evolution is the process of selective changes (mutations) at a molecular level (genes, proteins, etc.) throughout various branches in the tree of life (evolution). Molecular phylogenetics makes inferences of the evolutionary relationships that arise due to molecular evolution and results in the construction of a phylogenetic tree. History The theoretical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lecanopteris
''Lecanopteris'' is a genus of ferns in the family Polypodiaceae, subfamily Microsoroideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). They have swollen hollow rhizomes that provide homes for symbiotic ants. All are epiphytic plants that naturally occur from Southeast Asia to New Guinea. Several species are in commerce, being grown as houseplants and greenhouse curiosities. Taxonomy Phylogeny The monophyletic genus ''Lecanopteris'' has been divided into two sub-genera, ''Lecanopteris'' and ''Myrmecopteris''. All the species have rhizomes associated with ants. Subgenus ''Lecanopteris'' was monophyletic, and ''Myrmecopteris'' was paraphyletic. A 2019 molecular phylogenetic study suggested that the genus was related to three other clades, treated as genera, related as shown in the following cladogram. , the ''Checklist of Ferns and Lycophytes of the World'' recognizes the segregate genera; other sources do not. Species , the ''Checklist of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microsorum
''Microsorum'' is a genus of ferns in the family Polypodiaceae, subfamily Microsoroideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). The species are tropical. Like most ferns, they grow from rhizomes, rather than roots. The genus name is often misspelled "Microsorium" or "Microsoreum". It includes some species that are lithophytic rheophytes. Taxonomy The genus ''Phymatosorus'' is included in ''Microsorum'' in the Pteridophyte Phylogeny Group classification of 2016 (PPG I). , both the ''Checklist of Ferns and Lycophytes of the World'' and ''Plants of the World Online'' kept ''Phymatosorus'' separate. A 2019 molecular phylogenetic study of the subfamily Microsoroideae did not distinguish ''Phymatosorus'' from ''Microsorum'', and suggested that the genus as there circumscribed was sister to '' Leptochilus'', together forming one of the three main clades in the subfamily: Species , the ''Checklist of Ferns and Lycophytes of the Worl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type (biology)
In biology, a type is a particular wiktionary:en:specimen, specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set (mathematics), set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICN), the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendroconche
''Dendroconche'' is a genus of ferns in the family Polypodiaceae, subfamily Microsoroideae, erected in 2019. , the genus was not accepted by some sources. Description Species of ''Dendroconche'' are usually partially epiphytic. They grow from long, creeping rhizomes that are flattened from top to bottom and bear brown scales. In some species, the rhizome may have cavities. The rhizome produces two kinds of roots: those from the sides grip the surface on which the plant grows; those from underneath enter the substrate. The leaves vary in shape from undivided to deeply divided, and are up to 70 cm long by 40 cm wide. Some species produce leaves of somewhat different shapes. The leaves may or may not have a petiole, which if present is usually winged. The leaf veins are prominent. The sori are round or elongated. Taxonomy The division of the subfamily Microsoroideae into genera has long been uncertain. A 2019 molecular phylogenetic study suggested that there were thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edwin Copeland
Edwin Bingham Copeland (September 30, 1873 – March 16, 1964) was an American botanist and agriculturist. He is known for founding the University of the Philippines College of Agriculture at Los Baños, Laguna and for being one of the America's leading pteridologists (one who studies ferns). Life In 1903, he and his family moved to the Philippines, where he worked as a Systematic Botanist for the Bureau of Science. Wagner, W.H. Jr. 1964Edwin Bingham Copeland (1873–1964) and his contributions to Pteridology American Fern Journal 54(4): 177–188. In 1909, he founded the University of the Philippines College of Agriculture at Los Baños, Laguna, now part of the University of the Philippines Los Baños, and served as its dean and also as a professor of plant physiology for eight years (1909–1917). In 1917, he returned to the United States and was a leading rice grower in Chico, California. In 1927, he began work as an Associate Curator at the University of California, Berkel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendroconche Linguiforme
''Dendroconche'' is a genus of ferns in the family Polypodiaceae, subfamily Microsoroideae, erected in 2019. , the genus was not accepted by some sources. Description Species of ''Dendroconche'' are usually partially epiphytic. They grow from long, creeping rhizomes that are flattened from top to bottom and bear brown scales. In some species, the rhizome may have cavities. The rhizome produces two kinds of roots: those from the sides grip the surface on which the plant grows; those from underneath enter the substrate. The leaves vary in shape from undivided to deeply divided, and are up to 70 cm long by 40 cm wide. Some species produce leaves of somewhat different shapes. The leaves may or may not have a petiole, which if present is usually winged. The leaf veins are prominent. The sori are round or elongated. Taxonomy The division of the subfamily Microsoroideae into genera has long been uncertain. A 2019 molecular phylogenetic study suggested that there were three c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polypodiaceae
Polypodiaceae is a family of ferns. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the family includes around 65 genera and an estimated 1,650 species and is placed in the order Polypodiales, suborder Polypodiineae. A broader 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 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 aureum''). Taxonomy Two distinct circumscriptions of the family ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendroconche Kingii
''Dendroconche'' is a genus of ferns in the family Polypodiaceae, subfamily Microsoroideae, erected in 2019. , the genus was not accepted by some sources. Description Species of ''Dendroconche'' are usually partially epiphytic. They grow from long, creeping rhizomes that are flattened from top to bottom and bear brown scales. In some species, the rhizome may have cavities. The rhizome produces two kinds of roots: those from the sides grip the surface on which the plant grows; those from underneath enter the substrate. The leaves vary in shape from undivided to deeply divided, and are up to 70 cm long by 40 cm wide. Some species produce leaves of somewhat different shapes. The leaves may or may not have a petiole, which if present is usually winged. The leaf veins are prominent. The sori are round or elongated. Taxonomy The division of the subfamily Microsoroideae into genera has long been uncertain. A 2019 molecular phylogenetic study suggested that there were three c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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