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Sabinaria Magnifica
''Sabinaria magnifica'' is a species of palm tree and the only member of the genus ''Sabinaria''. Native to the Darién Gap on the border between Colombia and Panama, it grows from tall with large, deeply-divided leaf blades. It has been described as "striking", "spectacular" and "beautiful" by taxonomists. Although known by local mule drivers, it was first collected in April 2013 by Saúl Hoyos, and described scientifically by Colombian palm experts Gloria Galeano and Rodrigo Bernal who named the genus ''Sabinaria'' after their daughter. Despite being locally abundant, the limited range occupied by the species makes it vulnerable to habitat destruction. Description ''Sabinaria magnifica'' is a single-stemmed palm tree with palmately-compound leaves. The trunk is tall and in diameter. Leaves are borne at the end of a long petiole; the combined length of the leaf sheath and petiole averages . Trees bear 20 to 35 leaves which are between in diameter. The leaves of ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodrigo Bernal
Rodrigo Bernal González (born June 6, 1959 in Medellín) is a Colombian botanist who specialises in the palm family. Bernal was a faculty member at the Institute of Natural Sciences, National University of Colombia until 2007. He received his Ph.D. from the University of Aarhus, Denmark, in 1996. He was general curator of the National Colombian Herbarium (1986-1987), and editor of the scientific journal Caldasia (1989-1991, 1997-1999). Bernal has published five books and 105 scientific papers and book chapters, most on them on palm systematics, ecology, uses and conservation. He has described one new genus (''Sabinaria'') and 25 new species of palms in the genera ''Aiphanes'', ''Astrocaryum'', ''Bactris'', ''Chamaedorea'', ''Geonoma'', ''Oenocarpus'', ''Sabinaria'', ''Socratea'', and ''Wettinia''. He has described also new species in the plant families Cyclanthaceae, Sapindaceae, and Caprifoliaceae. Bernal coauthored a ''Field Guide to the Palms of the Americas'' and a fiel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tribe (biology)
In biology, a tribe is a taxonomic rank above genus, but below family (biology), family and subfamily. It is sometimes subdivided into subtribes. By convention, all taxonomic ranks from genus upwards are capitalized, including both tribe and subtribe. In zoology, the standard ending for the name of a zoological tribe is "-ini". Examples include the tribes Goat-antelope#Tribe Caprini, Caprini (goat-antelopes), Hominini (hominins), Bombini (bumblebees), and Thunnini (tunas). The tribe Hominini is divided into subtribes by some scientists; subtribe Hominina then comprises "humans". The standard ending for the name of a zoological subtribe is "-ina". In botany, the standard ending for the name of a botanical tribe is "-eae". Examples include the tribes Acalypheae and Scilloideae#Hyacintheae, Hyacintheae. The tribe Hyacintheae is divided into subtribes, including the subtribe Massoniinae. The standard ending for the name of a botanical subtribe is "-inae". In bacteriology, the form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thrinax
''Thrinax'' is a genus in the palm family, native to the Caribbean. It is closely related to the genera ''Coccothrinax'', '' Hemithrinax'' and '' Zombia''. Flowers are small, bisexual and are borne on small stalks. Taxonomy In the first edition of '' Genera Palmarum'' (1987), Natalie Uhl and John Dransfield placed the genus ''Thrinax'' in subfamily Coryphoideae, tribe Corypheae and subtribe Thrinacinae. Subsequent phylogenetic analyses showed that the Old World and New World members of Thrinacinae are not closely related and as a consequence, ''Thrinax'' and related genera were transferred into their own tribe, Cryosophileae. In 2008, '' Leucothrinax morrisii'' (formerly ''T. morrisii'') was split from ''Thrinax'' after phylogenetic studies showed that its inclusion in ''Thrinax'' would render that genus paraphyletic In taxonomy (general), taxonomy, a group is paraphyletic if it consists of the group's most recent common ancestor, last common ancestor and most of i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schippia
''Schippia concolor'', the mountain pimento or silver pimeto, is a medium-sized palm species that is native to Belize and Guatemala. Named for its discoverer, Australian botanist William A. Schipp, the species is threatened by habitat loss. It is the sole species in the genus ''Schippia''. Description ''Schippia concolor'' is a medium-sized, single-stemmed palm with fan-shaped (or palmate) leaves. The stem, which is tall and in diameter, is usually covered by the remains of old, dead leaves (but in areas where fires are frequent the corky bark of the stem may be exposed throughout the length of the stem). Individuals bear six to 15 leaves which consist of a petiole and a roughly circular leaf blade which is about in diameter divided into 30 leaflets. The fruit are white, spherical and up to in diameter. Taxonomy ''Schippia'' is a monotypic genus—it includes only a single species, ''S. concolor''. In the first edition of '' Genera Palmarum'' (1987), Natalie Uhl an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryosophila
''Cryosophila'' is a genus of medium-sized fan palms that range from central Mexico to northern Colombia. Species in the genus can be readily distinguished from related genera by their distinctive downward-pointing spines on the stem, which are actually modified roots. They are known as the "root spine palms". Description ''Cryosophila'' is a genus of medium-sized, single-stemmed (or rarely multi-stemmed) palms with fan-shaped (or palmate) leaves and spiny stems. The stems range in height from , with diameters between . Plants have between five and 35 leaves with elongated petioles. The leaves are often whitish-grey on the lower surface. The whitish flowers are bisexual with six stamens and three carpels. The fruit are white and smooth, with a single seed. ''Cryosophila'' is distinguished from related genera by its long, branched spines which are derived from modified roots. These downward-pointing spines cover the trunk, often quite densely. The genus is one of the few pal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chelyocarpus
''Chelyocarpus'' is a genus of small to medium-sized fan palms which are native to northwestern South America. Some are upright trees, while others creep along the ground. Species are used for thatch, to weave hats, stuff pillows and as a source of salt. Description ''Chelyocarpus'' is a type of small to medium-sized, single or multi-stemmed palms with fan shaped leaves. Stems range from short and creeping along the ground to as much as tall. Stem diameters range from . Individuals have between 10 and 20 leaves with circular blades, the lower surface of which is usually whitish in colour. The flowers are small and bisexual—they have both male and female sex organs in the same flower. The fruit have one or two seeds and ripen to a greenish yellow or brown. Taxonomy The name ''Chelyocarpus'' is derived from Ancient Greek and means "turtle carapace-fruited", a reference to cracked surface of the fruits of the genus, which resemble the shell of a turtle. The species was first des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Itaya
''Itaya amicorum'' is a medium-size fan palm that is native to Brazil, Colombia and Peru. It is the only species in the genus ''Itaya''. It was unknown to science until 1972, when it was discovered on the bank of the Itaya River in the Peruvian Amazon. Description ''Itaya amicorum'' is a medium-sized, single-stemmed palm with fan-shaped (or palmate) leaves. The stems reach a height of up to with a diameter of . Plants have between 11 and 25 leaves which have a roughly circular blade, about in diameter which is split into 10 to 16 broad leaflets, and a long petiole. The leaves have a whitish or silver-grey underside. ''Itaya amicorum'' is pleonanthic—it flowers repeatedly over the course of its lifespan—and hermaphroditic; both male and female sex organs are present in the same flowers. The flowers are whitish in colour, while the fruit are yellowish-green, long, in diameter. Taxonomy ''Itaya'' is a monotypic genus—it includes only a single species, ''I. ami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trithrinax
''Trithrinax'' is a genus of flowering plants in the subfamily Coryphoideae of the family Arecaceae. The name is derived from ancient Greek, where ''tri'' means three, and ''thrinax'' trident. It was named in 1837 by Carl Friedrich Philipp von Martius, a German botanist and explorer.Moore, H. E., Jr. 1963. An annotated checklist of cultivated palms. ''Trithrinax'' species are spiny fan palms native to South America. They are resistant to cold, heat, wind, drought, poor soils and other adverse environmental conditions. Seeds germinate fast, but their overall growth rate is distinctly slow.Riffle, Robert L. and Craft, Paul (2003) ''An Encyclopedia of Cultivated Palms''. Portland: Timber Press. / Description Common features of ''Trithrinax'' species include: *''Flowers'': Inflorescences, in the order of hundreds of units. Flowers with three sepals, three petals, six stamens and three carpels. *''Stem'': Dead foliage is kept as a thick and spiny coat around the trunk. *''Leav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maturase K
Maturase K (matK) is a plant plastidial gene. The protein it encodes is an organelle intron maturase, a protein that splices Group II introns. It is essential for ''in vivo'' splicing of Group II introns. Amongst other maturases, this protein retains only a well conserved domain X and remnants of a reverse transcriptase domain. Universal matK primers can be used for DNA barcoding DNA barcoding is a method of species identification using a short section of DNA from a specific gene or genes. The premise of DNA barcoding is that by comparison with a reference library of such DNA sections (also called " sequences"), an indi ... of angiosperms. See also * LtrA, an open reading frame found in the ''Lactococcus lactis'' group II introns LtrB. It is an intron-encoded protein, with three subdomains, one of which is a reverse-transcriptase/maturase. References Plant genes {{gene-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Gene
A nuclear gene is a gene whose physical DNA nucleotide sequence is located in the cell nucleus of a eukaryote. The term is used to distinguish nuclear genes from genes found in mitochondria or chloroplasts. The vast majority of genes in eukaryotes are nuclear. Endosymbiotic theory Mitochondria and plastids evolved from free-living prokaryotes into current cytoplasmic organelles through endosymbiotic evolution. Mitochondria are thought to be necessary for eukaryotic life to exist. They are known as the cell's powerhouses because they provide the majority of the energy or ATP required by the cell. The mitochondrial genome ( mtDNA) is replicated separately from the host genome. Human mtDNA codes for 13 proteins, most of which are involved in oxidative phosphorylation (OXPHOS). The nuclear genome encodes the remaining mitochondrial proteins, which are then transported into the mitochondria. The genomes of these organelles have become far smaller than those of their free-living pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peduncle (botany)
In botany, a peduncle is a stalk supporting an inflorescence or a solitary flower, or, after fecundation, an infructescence or a solitary fruit. The peduncle sometimes has bracts (a type of cataphylls) at nodes. The main axis of an inflorescence above the peduncle is the rachis. There are no flowers on the peduncle but there are flowers on the rachis. When a peduncle arises from the ground level, either from a compressed aerial stem or from a subterranean stem (rhizome, tuber, bulb, corm), with few or no bracts except the part near the rachis or receptacle, it is referred to as a scape. The acorns of the pedunculate oak ''Quercus robur'', commonly known as common oak, pedunculate oak, European oak or English oak, is a species of flowering plant in the beech and oak family, Fagaceae. It is a large tree, native to most of Europe west of the Caucasus. It is wid ... are borne on a long peduncle, hence the name of the tree. See also * Pedicel (botany) * Scape (botany) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed on the axis of a plant. The modifications can involve the length and the nature of the internodes and the phyllotaxis, as well as variations in the proportions, compressions, swellings, adnations, connations and reduction of main and secondary axes. One can also define an inflorescence as the reproductive portion of a plant that bears a cluster of flowers in a specific pattern. The stem holding the whole inflorescence is called a peduncle. The major axis (incorrectly referred to as the main stem) above the peduncle bearing the flowers or secondary branches is called the rachis. The stalk of each flower in the inflorescence is called a pedicel. A flower that is not part of an inflorescence is called a solitary flower and its stalk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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