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Pseuderia Samarana
''Pseuderia samarana'' is an endemic species of plant in the family Orchidaceae found in Samar Island and is the first generic record for the genus Pseuderia in the Philippines. The species is initially terrestrial during its seedling stage, then becomes epiphytic upon reaching maturity. It shared similarities with ''P. floribunda'', and ''P. frutex''. However, the species scented, 2-flowered inflorescence significantly differs from the latter, along with its narrower labellum and the characteristically entire clinandrium margins. The species is considered Critically Endangered, and is found only in top portion of forest over limestone, and is threatened by land use conversion, timber poaching, and slash-and-burn farming. Description ''Pseuderia samarana'' is an initially terrestrial orchid during its seedling stage, then becomes epiphytic upon reaching maturity. The scented flowers, by are yellow in color with reddish-purple markings, borne on 2-flowered inflorescence, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labellum (botany)
In botany, the labellum (or lip) is the part of the flower of an orchid or '' Canna'', or other less-known genera, that serves to attract insects, which pollinate the flower, and acts as a landing platform for them. ''Labellum'' (plural: ''labella'') is the Latin diminutive of ''labrum'', meaning lip. The labellum is a modified petal and can be distinguished from the other petals and from the sepals by its large size and its often irregular shape. It is not unusual for the other two petals of an orchid flower to look like the sepals, so that the labellum stands out as distinct. Bailey, L. H. ''Gentes Herbarum: Canna x orchiodes''. (Ithaca), 1 (3): 120 (1923); Khoshoo, T. N. & Guha, I. ''Origin and Evolution of Cultivated Cannas.'' Vikas Publishing House. In orchids, the labellum is the modified median petal that sits opposite from the fertile anther and usually highly modified from the other perianth segments. It is often united with the column and can be hinged or movable, fac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terete
Terete is a term in botany used to describe a cross section that is circular, or like a distorted circle, with a single surface wrapping around it.Lichen Vocabulary, Lichens of North America Information, Sylvia and Stephen Sharnoff/ref> This is usually contrasted with cross-sections that are flattened, with a distinct upper surface that is different from the lower surface. The cross-section of a branch in a tree is somewhat round, so the branch is terete. The cross section of a normal leaf has an upper surface, and a lower surface, so the leaf is not terete. However, the fleshy leaves of succulents are sometimes terete. Fruticose lichens are terete, with a roughly circular cross section and a single wrap-around skin-like surface called the cortex, compared to foliose lichens and crustose lichens Crustose lichens are lichens that form a crust which strongly adheres to the substrate (soil, rock, tree bark, etc.), making separation from the substrate impossible without destruction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Column (botany)
The column, or technically the gynostemium, is a reproductive structure that can be found in several plant families: Aristolochiaceae, Orchidaceae, and Stylidiaceae. It is derived from the fusion of both male and female parts (stamens and pistil) into a single organ. The top part of the column is formed by the anther, which is covered by an anther cap. This means that the ''style'' and ''stigma'' of the pistil, with the filaments and one or more anthers, are all united. Orchidaceae The stigma sits at the apex of the column in the front but is pointing downwards after resupination (the rotation by 180 degrees before unfolding of the flower). This stigma has the form of a small bowl, the clinandrium, a viscous surface embedding the (generally) single anther. On top of it all is the anther cap. Sometimes there is a small extension or little beak to the median stigma lobe, called rostellum. Column wings may project laterally from the stigma. The column foot is formed by the atta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Labellum (botany)
In botany, the labellum (or lip) is the part of the flower of an orchid or '' Canna'', or other less-known genera, that serves to attract insects, which pollinate the flower, and acts as a landing platform for them. ''Labellum'' (plural: ''labella'') is the Latin diminutive of ''labrum'', meaning lip. The labellum is a modified petal and can be distinguished from the other petals and from the sepals by its large size and its often irregular shape. It is not unusual for the other two petals of an orchid flower to look like the sepals, so that the labellum stands out as distinct. Bailey, L. H. ''Gentes Herbarum: Canna x orchiodes''. (Ithaca), 1 (3): 120 (1923); Khoshoo, T. N. & Guha, I. ''Origin and Evolution of Cultivated Cannas.'' Vikas Publishing House. In orchids, the labellum is the modified median petal that sits opposite from the fertile anther and usually highly modified from the other perianth segments. It is often united with the column and can be hinged or movable, fac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slash-and-burn Farming
Slash-and-burn agriculture is a farming method that involves the cutting and burning of plants in a forest or woodland to create a field called a swidden. The method begins by cutting down the trees and woody plants in an area. The downed vegetation, or "slash", is then left to dry, usually right before the rainiest part of the year. Then, the biomass is burned, resulting in a nutrient-rich layer of ash which makes the soil fertile, as well as temporarily eliminating weed and pest species. After about three to five years, the plot's productivity decreases due to depletion of nutrients along with weed and pest invasion, causing the farmers to abandon the field and move to a new area. The time it takes for a swidden to recover depends on the location and can be as little as five years to more than twenty years, after which the plot can be slashed and burned again, repeating the cycle. In Bangladesh and India, the practice is known as jhum or jhoom. Slash-and-burn is a type of shif ... [...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 is al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant
Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyta, and consists of the green algae and Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and their allies, hornworts, liverworts, and mosses. Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic or mycotrophic and have lost the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseuderia Frutex
''Pseuderia'' is a genus of orchids consisting of about 20 species distributed from the Moluccas through New Guinea to Samoa, Fiji and Micronesia. The genus has its center of diversity in New Guinea. Species accepted as of June 2014: #'' Pseuderia amblyornidis'' (Rchb.f.) Ormerod - New Guinea #'' Pseuderia brevifolia'' J.J.Sm. - New Guinea #'' Pseuderia diversifolia'' J.J.Sm. - New Guinea #''Pseuderia floribunda'' Schltr. - New Guinea #'' Pseuderia foliosa'' (Brongn.) Schltr. - Maluku, New Guinea #''Pseuderia frutex'' (Schltr.) Schltr. - New Guinea #''Pseuderia ledermannii'' Schltr. - New Guinea #''Pseuderia micronesiaca'' Schltr. - Pohnpei #''Pseuderia nigricans'' Ridl. - New Guinea #''Pseuderia pauciflora'' Schltr. - New Guinea #''Pseuderia platyphylla'' L.O.Williams - Fiji #''Pseuderia ramosa'' L.O.Williams - Samoa, Futuna #''Pseuderia robusta'' Schltr. - New Guinea #''Pseuderia samarana'' Meneses, Z.D. & Cootes, J - Philippines #''Pseuderia sepikana'' Schltr. - New Guinea #' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseuderia Floribunda
''Pseuderia'' is a genus of orchids consisting of about 20 species distributed from the Moluccas through New Guinea to Samoa, Fiji and Micronesia. The genus has its center of diversity in New Guinea. Species accepted as of June 2014: #'' Pseuderia amblyornidis'' (Rchb.f.) Ormerod - New Guinea #'' Pseuderia brevifolia'' J.J.Sm. - New Guinea #'' Pseuderia diversifolia'' J.J.Sm. - New Guinea #'' Pseuderia floribunda'' Schltr. - New Guinea #'' Pseuderia foliosa'' (Brongn.) Schltr. - Maluku, New Guinea #''Pseuderia frutex'' (Schltr.) Schltr. - New Guinea #'' Pseuderia ledermannii'' Schltr. - New Guinea #''Pseuderia micronesiaca'' Schltr. - Pohnpei #''Pseuderia nigricans'' Ridl. - New Guinea #'' Pseuderia pauciflora'' Schltr. - New Guinea #'' Pseuderia platyphylla'' L.O.Williams - Fiji #''Pseuderia ramosa'' L.O.Williams - Samoa, Futuna #''Pseuderia robusta'' Schltr. - New Guinea #''Pseuderia samarana'' Meneses, Z.D. & Cootes, J - Philippines #''Pseuderia sepikana'' Schltr. - New Guine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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