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Typhonium Russell-smithii
''Typhonium russell-smithii'' is a species of plant in the arum family that is endemic to Australia. Etymology The specific epithet ''russell-smithii'' honours ecologist Jeremy Russell-Smith for his contributions to the knowledge of the flora and vegetation of the Top End of the Northern Territory. Description The species is a deciduous, geophytic, perennial herb, which sprouts from a corm about 3 cm in diameter. The leaves are deeply and narrowly trilobed. The flower is enclosed in a spathe about 6.5 cm long. Distribution and habitat The species is known only from Cannon Hill in Kakadu National Park, in the tropical Top End of the Northern Territory, where the type collection came from sandy colluvial soils in eucalypt Eucalypt is any woody plant with Capsule (fruit), capsule fruiting bodies belonging to one of seven closely related genera (of the tribe Eucalypteae) found across Australia: ''Eucalyptus'', ''Corymbia'', ''Angophora'', ''Stockwellia'', ''Allo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alistair Hay
Alistair James Montagu Hay (born 1955) is an Australian botanist. He is a former director of the Royal Botanic Garden, Sydney. He is the heir presumptive to his older brother Marquess of Tweeddale, Charles Hay, 14th Marquess of Tweeddale (born 1947). Although entitled to the courtesy style of "Lord" as the younger son of a marquess, he does not use the style. References Living people 1955 births 20th-century Australian botanists 21st-century Australian botanists Clan Hay, Alistair Younger sons of marquesses {{Australia-botanist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bract
In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also look different from the parts of the flower, such as the petals or sepals. A plant having bracts is referred to as bracteate or bracteolate, while one that lacks them is referred to as ebracteate or ebracteolate. Variants Some bracts are brightly coloured which aid in the attraction of pollinators, either together with the perianth or instead of it. Examples of this type of bract include those of '' Euphorbia pulcherrima'' (poinsettia) and '' Bougainvillea'': both of these have large colourful bracts surrounding much smaller, less colourful flowers. In grasses, each floret (flower) is enclosed in a pair of papery bracts, called the lemma (lower bract) and palea (upper bract), while each spikelet (group of florets) has a further pair o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of The Northern Territory
''FloraNT'' is a public access web-based database of the Flora of the Northern Territory of Australia. It provides authoritative scientific information on some 4300 native taxa, including descriptions, maps, images, conservation status, nomenclatural details together with names used by various aboriginal groups. Alien taxa (over 470 species)Flora NT: Introduced species Retrieved 20 November 2018 are also recorded. Users can access fact sheets on species and some details of the specimens held in the Northern Territory Herbarium, (herbaria codes, NT, DNA) together with keys, and some regional factsheets. In the distribution guides FloraNT uses the IBRA version 5.1 botanical regions. The con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monocots Of Australia
Monocotyledons (), commonly referred to as monocots, (Lilianae ''sensu'' Chase & Reveal) are flowering plants whose seeds contain only one embryonic leaf, or cotyledon. A monocot taxon has been in use for several decades, but with various ranks and under several different names. The APG IV system recognises its monophyly but does not assign it to a taxonomic rank, and instead uses the term "monocots" to refer to the group. Monocotyledons are contrasted with the dicotyledons, which have two cotyledons. Unlike the monocots however, the dicots are not monophyletic and the two cotyledons are instead the ancestral characteristic of all flowering plants. Botanists now classify dicots into the eudicots ("true dicots") and several basal lineages from which the monocots emerged. The monocots are extremely important economically, culturally, and ecologically, and make up a majority of plant biomass used in agriculture. Common crops such as dates, onions, garlic, rice, wheat, maize, and su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cormous Plants
Corm, bulbo-tuber, or bulbotuber is a short, vertical, swollen, underground plant stem that serves as a storage organ that some plants use to survive winter or other adverse conditions such as summer drought and heat ( perennation). The word ''cormous'' usually means plants that grow from corms, parallel to the terms ''tuberous'' and ''bulbous'' to describe plants growing from tubers and bulbs. A corm consists of one or more internodes with at least one growing point, generally with protective leaves modified into skins or tunics. The tunic of a corm forms from dead petiole sheaths—remnants of leaves produced in previous years. They act as a covering, protecting the corm from insects, digging animals, flooding, and water loss. The tunics of some species are thin, dry, and papery, at least in young plants, however, in some families, such as ''Iridaceae'', the tunic of a mature corm can be formidable protection. For example, some of the larger species of '' Watsonia'' accu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Typhonium
''Typhonium'' is a genus in the family Araceae native to eastern and southern Asia, New Guinea, and Australia. It is most often found growing in wooded areas.Bown, Deni (2000). ''Aroids: Plants of the Arum Family''. Timber Press. . ;Species #'' Typhonium acetosella'' Gagnep. - Cambodia, Laos, Thailand, Vietnam #'' Typhonium adnatum'' Hett. & Sookch. - Thailand #'' Typhonium albidinervium'' C.Z.Tang & H.Li - Guangdong, Hainan, Laos, Thailand #'' Typhonium albispathum'' Bogner - Thailand #'' Typhonium alismifolium'' F.Muell. - Queensland, Northern Territory #'' Typhonium angustilobum'' F.Muell. - Queensland, New Guinea #'' Typhonium bachmaense'' V.D.Nguyen & Hett. - Vietnam #'' Typhonium baoshanense'' Z.L.Dao & H.Li - Yunnan #'' Typhonium blumei'' Nicolson & Sivad. - Japan, Taiwan, Ryukyu Islands, much of China, Bangladesh, Laos, Cambodia, Myanmar, Thailand, Vietnam; naturalized in Madagascar, Mauritius, Comoros, Borneo, Philippines, West Indies #'' Typhonium bognerianum'' J.Murata ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucalypt
Eucalypt is any woody plant with Capsule (fruit), capsule fruiting bodies belonging to one of seven closely related genera (of the tribe Eucalypteae) found across Australia: ''Eucalyptus'', ''Corymbia'', ''Angophora'', ''Stockwellia'', ''Allosyncarpia'', ''Eucalyptopsis'' and ''Arillastrum''. In Australia, they are commonly known as gum trees or stringybarks. Taxonomy For an example of changing historical perspectives, in 1991, largely genetic evidence indicated that some prominent ''Eucalyptus'' species were actually more closely related to ''Angophora'' than to other eucalypts; they were accordingly split off into the new genus ''Corymbia''. Although separate, all of these genera and their species are allied and it remains the standard to refer to the members of all seven genera ''Angophora'', ''Corymbia'', ''Eucalyptus'', ''Stockwellia'', ''Allosyncarpia'', ''Eucalyptopsis'' and ''Arillastrum'' as "eucalypts" or as the eucalypt group. The extant genera ''Stockwellia'', ''A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colluvium
Colluvium (also colluvial material or colluvial soil) is a general name for loose, unconsolidated sediments that have been deposited at the base of hillslopes by either rainwash, Sheet erosion , sheetwash, slow continuous downslope creep, or a variable combination of these processes. Colluvium is typically composed of a heterogeneous range of rock types and sediments ranging from silt to Rock (geology), rock fragments of various sizes. This term is also used to specifically refer to sediment deposited at the base of a hillslope by unconcentrated surface runoff or sheet erosion. Location Colluviation refers to the buildup of colluvium at the base of a hillslope.Jackson, JA, J Mehl, and K. Neuendorf (2005) ''Glossary of Geology'' American Geological Institute, Alexandria, Virginia. 800 pp. Goodie, AS (2003) ''Colluvium'' in A. S. Goodie, ed., pp. 173, Encyclopedia of Geomorphology Volume 1, A–I. Routledge, New York, New York. 1200 pp. Colluvium is typically loosely consolidat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type (biology)
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally associated. 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 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 scientific name of every taxon is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Territory
The Northern Territory (abbreviated as NT; known formally as the Northern Territory of Australia and informally as the Territory) is an states and territories of Australia, Australian internal territory in the central and central-northern regions of Australia. The Northern Territory shares its borders with Western Australia to the west (129th meridian east), South Australia to the south (26th parallel south), and Queensland to the east (138th meridian east). To the north, the Northern Territory looks out to the Timor Sea, the Arafura Sea, and the Gulf of Carpentaria, including Western New Guinea and various other islands of the Indonesian archipelago. The NT covers , making it the third-largest Australian federal division, and List of country subdivisions by area, the 11th-largest country subdivision in the world. It is sparsely populated, with a population of only 249,000 – fewer than half the population of Tasmania. The largest population centre is the capital city of Darw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Top End
The Top End of Australia's Northern Territory is a geographical region encompassing the northernmost section of the Northern Territory, which aside from the Cape York Peninsula is the northernmost part of the Australian continent. It covers a rather vaguely defined area of about behind the northern coast from the Northern Territory capital of Darwin across to Arnhem Land with the Indian Ocean on the west, the Arafura Sea to the north, and the Gulf of Carpentaria to the east, and with the almost waterless semi-arid interior of Australia to the south, beyond the huge Kakadu National Park. The Top End contains the Territory's regional center and its capital city, Darwin, as well as major towns such as Palmerston and Katherine. The well-known town of Alice Springs is located further south, in the arid southern part of the Northern Territory, sometimes referred to by Australians as the Red Centre. The landscape is relatively flat with river floodplains and grasslands with e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kakadu National Park
Kakadu National Park is a protected area in the Northern Territory of Australia, southeast of Darwin. It is a World Heritage Site. Kakadu is also gazetted as a locality, covering the same area as the national park, with 313 people recorded living there in the 2016 Australian census. Kakadu National Park is located within the Alligator Rivers Region of the Northern Territory, covering an area of , extending nearly from north to south and over from east to west. It is roughly the size of Wales or one-third the size of Tasmania, and is the second-largest national park in Australia, after the Munga-Thirri–Simpson Desert National Park. Most of the region is owned by the Aboriginal traditional owners, who have occupied the land for around 60,000 years and, today, manage the park jointly with Parks Australia. It is highly ecologically and biologically diverse, hosting a wide range of habitats and flora and fauna. It also includes a rich heritage of Aboriginal rock art, incl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
