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Rhododendron Subg. Vireya
image:Vireya.jpg, ''Vireya'' rhododendron ''Rhododendron'' section ''Vireya'' (vireyas) is a tropical group of ''Rhododendron'' species, numbering about 300 in all. The group may also be treated as ''Rhododendron'' subgenus ''Vireya''. Vireyas are native to southeastern Asia and range from Thailand to Australia. Description ''Vireya'' are morphologically diverse, and characterised by seeds with tailed appendages, the presence of leaf idioblasts and capsule valves which twist upon opening. The formal description (Craven 2008) is: Scales sessile or sometimes stalked, lobed to deeply incised or sometimes entire; corolla campanulate, trumpet-like, salver-shaped, tubular or funnel-shaped; stamens (5–)10(–16), exserted to included, staminal filaments glabrous or hairy from the base; capsule valves twisting after dehiscence; seeds with a distinct tail at each end. Taxonomy ''Vireya'' is the largest of the three sections constituting subgenus ''Rhododendron'', and includes about a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhododendron Javanicum
''Rhododendron javanicum'' is a rhododendron species native to Indonesia, Malaysia, and the Philippines. This evergreen shrub grows to with bright orange flowers in spring. Plants may be terrestrial or epiphyte, epiphytic. Some forms from the Philippines may have red or bicoloured flowers, but are less often seen in cultivation. Subspecies Nine subspecies are recognized:''Rhododendron javanicum'' (Blume) Benn. ''Plants of the World Online'', Kew Science. Accessed 13 March 2023. * ''Rhododendron javanicum'' subsp. ''brookeanum'' (H.Low ex Lindl.) Argent & Phillipps – epiphytic shrub or tree, Borneo * ''Rhododendron javanicum'' subsp. ''cladotrichum'' (Sleumer) Argent – epiphytic shrub, Borneo (Sabah and east-central Kalimantan) * ''Rhododendron javanicum'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyly
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria: # the grouping contains its own most recent common ancestor (or more precisely an ancestral population), i.e. excludes non-descendants of that common ancestor # the grouping contains all the descendants of that common ancestor, without exception Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic'' grouping meets 1. but not 2., thus consisting of the descendants of a common ancestor, excepting one or more monophyletic subgroups. A ''polyphyletic'' grouping meets neither criterion, and instead serves to characterize convergent relationships of biological features rather than genetic relationships – for example, night-active primates, fruit trees, or aquatic insects. As such, these characteristic features of a polyphyletic grouping are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Papuasia
Papuasia is a Level 2 botanical region defined in the World Geographical Scheme for Recording Plant Distributions (WGSRPD). It lies in the southwestern Pacific Ocean, in the Melanesia ecoregion of Oceania and Tropical Asia. It comprises the following geographic and political entities: * Aru Islands (Indonesia; treated as part of Western New Guinea in the Scheme) * New Guinea ** Papua New Guinea ** Western New Guinea (Indonesia) * Solomon Islands (archipelago) ** Bougainville ** Solomon Islands Solomon Islands, also known simply as the Solomons,John Prados, ''Islands of Destiny'', Dutton Caliber, 2012, p,20 and passim is an island country consisting of six major islands and over 1000 smaller islands in Melanesia, part of Oceania, t ... (excluding the Santa Cruz Islands) References {{reflist Australasian realm Biogeography Geography of Melanesia * * Natural history of New Guinea Natural history of Papua New Guinea Natural history of Western New Guinea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malesian Archipelago
Malesia is a biogeographical region straddling the Equator and the boundaries of the Indomalayan and Australasian realms. It is a phytogeographical floristic region in the Paleotropical kingdom. It was first recognized as a distinct region in 1857 by Heinrich Zollinger, a Swiss botanist and explorer. The precise boundaries used to define Malesia vary. The broadly defined area used in ''Flora Malesiana'' consists of the countries of Malaysia, Singapore, Indonesia, Brunei, the Philippines, Timor-Leste and Papua New Guinea. The original definition by the World Geographical Scheme for Recording Plant Distributions (WGSRPD) covered a similar area, but New Guinea and some offshore islands were split off as Papuasia in its 2001 version. Floristic region Malesia was first recognized as a distinct floristic region in 1857 by Heinrich Zollinger, a Swiss botanist and explorer. In 1948 and 1950, Cornelius G. G. J. van Steenis developed the idea of Malesia, and put forward plans for a ''F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhododendron Sect
''Rhododendron'' (; : ''rhododendra'') is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are native to eastern Asia and the Himalayan region, but smaller numbers occur elsewhere in Asia, and in North America, Europe and Australia. It is the national flower of Nepal, the state flower of Washington and West Virginia in the United States, the state flower of Nagaland and Himachal Pradesh in India, the provincial flower of Jeju Province in South Korea, the provincial flower of Jiangxi in China and the state tree of Sikkim and Uttarakhand in India. Most species have brightly coloured flowers which bloom from late winter through to early summer. Azaleas make up two subgenera of ''Rhododendron''. They are distinguished from "true" rhododendrons by having only five anthers per flower. Etymology The common and generic name comes . Description ''Rhododendron'' is a genus of shrubs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Flora Online
World Flora Online is an Internet-based compendium of the world's plant species. Description The World Flora Online (WFO) is an open-access database, launched in October 2012 as a follow-up project to The Plant List, with the aim of publishing an online flora of all known plants by 2020. It is a project of the United Nations Convention on Biological Diversity, with goal of halting the loss of plant species worldwide by 2020. It is developed by a collaborative group of institutions around the world in response to the 2011–2020 Global Strategy for Plant Conservation (GSPC)'s updated Target 1: to produce "an online flora of all known plants". An accessible flora of all known plant species was considered a fundamental requirement for plant conservation. It provides a baseline for the achievement and monitoring of other targets of the strategy. The previous target of GSPC was achieved in 2010 with The Plant List. WFO was conceived in 2012 by an initial group of four instituti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outgroup (cladistics)
In cladistics or phylogenetics, an outgroup is a more distantly related group of organisms that serves as a reference group when determining the evolutionary relationships of the ingroup, the set of organisms under study, and is distinct from sociological outgroups. Character states present in the ingroup but absent in the outgroup are (often) synapomorphies that provide empirical support for the inferred monophyly of the ingroup; character states that are present in the outgroup and some members of the ingroup are symplesiomorphies, and their complementary synapomorphies shared among some members of the ingroup provide hypotheses of relationship within the ingroup clade. The outgroup is used as a point of comparison for the ingroup and specifically allows for the phylogeny to be rooted. Because the polarity (direction) of character change can be determined only on a rooted phylogeny, the choice of outgroup is essential for understanding the evolution of traits along a phylogeny. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sister Group
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and taxon B are sister groups to each other. Taxa A and B, together with any other extant or extinct descendants of their most recent common ancestor (MRCA), form a monophyletic group, the clade AB. Clade AB and taxon C are also sister groups. Taxa A, B, and C, together with all other descendants of their MRCA form the clade ABC. The whole clade ABC is itself a subtree of a larger tree which offers yet more sister group relationships, both among the leaves and among larger, more deeply rooted clades. The tree structure shown connects through its root to the rest of the universal tree of life. In cladistic standards, taxa A, B, and C may represent specimens, species, genera, or any other taxonomic units. If A and B are at the same taxono ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhododendron Jasminiflorum
''Rhododendron jasminiflorum'' is a rhododendron species native to Peninsular Malaysia, Borneo, Sumatra, and the Philippines. Description Growing to in height, it is an evergreen shrub with clusters of slightly fragrant, narrowly trumpet-shaped flowers that open pink, turning white. Range and habitat ''Rhododendron jasminiflorum'' is native to Peninsular Malaysia, northern and eastern Sumatra, Sarawak on Borneo, and the island of Mindanao Mindanao ( ) is the List of islands of the Philippines, second-largest island in the Philippines, after Luzon, and List of islands by population, seventh-most populous island in the world. Located in the southern region of the archipelago, the ... in the Philippines. It grows in humid forests from sea level to 3,100 meters elevation, most commonly in lower montane forests at about 1,000 m. Subspecies Five subspecies are accepted: *''Rhododendron jasminiflorum'' subsp. ''chamaepitys'' – Borneo (Sarawak: Gunung Lambir) *''Rhododendron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhododendron Habbemae
''Rhododendron'' (; : ''rhododendra'') is a very large genus of about 1,024 species of woody plants in the Ericaceae, heath family (Ericaceae). They can be either evergreen or deciduous. Most species are native to eastern Asia and the Himalayan region, but smaller numbers occur elsewhere in Asia, and in North America, Europe and Australia. It is the national flower of Nepal, the List of U.S. state and territory flowers, state flower of Washington (state), Washington and West Virginia in the United States, the state flower of Nagaland and Himachal Pradesh in India, the provincial flower of Jeju Province in South Korea, the provincial flower of Jiangxi in China and the List of Indian state trees, state tree of Sikkim and Uttarakhand in India. Most species have brightly coloured flowers which bloom from late winter through to early summer. Azaleas make up two subgenera of ''Rhododendron''. They are distinguished from "true" rhododendrons by having only five anthers per flower. E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhododendron Vaccinioides
''Rhododendron'' (; : ''rhododendra'') is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are native to eastern Asia and the Himalayan region, but smaller numbers occur elsewhere in Asia, and in North America, Europe and Australia. It is the national flower of Nepal, the state flower of Washington and West Virginia in the United States, the state flower of Nagaland and Himachal Pradesh in India, the provincial flower of Jeju Province in South Korea, the provincial flower of Jiangxi in China and the state tree of Sikkim and Uttarakhand in India. Most species have brightly coloured flowers which bloom from late winter through to early summer. Azaleas make up two subgenera of ''Rhododendron''. They are distinguished from "true" rhododendrons by having only five anthers per flower. Etymology The common and generic name comes . Description ''Rhododendron'' is a genus of shrubs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhododendron Beyerinckianum
''Rhododendron beyerinckianum'' is a species of rhododendron endemic to New Guinea. It is found in the Indonesian portion of the island and western Papua New Guinea, extending as far east as Mount Victoria and Mount Dayman, where it grows at elevations of 1400–4000 meters. It is a shrub A shrub or bush is a small to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple ... that grows to 5 m in height, with leathery leaves that are narrowly ovate, 6 x 3.5 cm in size. Flowers are tubular-funnel-shaped and usually dark red, but also white, yellow, greenish or pink. References * ''Nova Guinea'' 8:876, t. 150. 1912. * Vireya.netHirsutum.com* Atkinson, R., K. Jong & G. Argent, "Chromosome numbers of some tropical rhododendrons (section Vireya)", ''Edinburgh J. Bot.'' 57(1): 1–7. 2000. Isotype of Rhododendron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
