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Davidsonia Johnsonii
''Davidsonia johnsonii'', commonly known as smooth Davidson's plum, is a small tree native to rainforests of eastern Australia. The leaves are compound, glossy and hairless. It is a very rare tree in the wild, but is cultivated for its edible fruit. The fruit is a deep burgundy colour, with a sour flavour and is popular in jams. It is cultivated in small plantations. Due to infertile seeds it can only be propagated from cuttings or division Division or divider may refer to: Mathematics *Division (mathematics), the inverse of multiplication *Division algorithm, a method for computing the result of mathematical division Military *Division (military), a formation typically consisting .... Hence all cultivated material is derived from clones of wild plants. Plants take at least six years to produce fruit. Some selections are heavy bearing. References Cunoniaceae Oxalidales of Australia Bushfood Trees of Australia Endangered flora of Australia Flora of Queensland ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Beaumont Williams
John Beaumont Williams (12 February 1932 – 31 July 2005) was an Australian botanist who spent most of his working life, from 1957 until 1992 as a lecturer in taxonomy, anatomy and ecology at the University of New England (Australia), University of New England. He graduated Bachelor of Science from University of Sydney, Sydney University in 1953 and commenced a Doctor of Philosophy, PhD under the supervision of Noel Beadle. When Beadle was appointed Chair of Botany at the University of New England, Williams followed to take up a lecturing position at the same institution and to complete his PhD. For the next few years he concentrated on teaching, fieldwork and producing plant lists for north-eastern New South Wales as well as spending time studying in the Jodrell Laboratory at Royal Botanic Gardens, Kew working on the family Haemodoraceae. As well as his work at the University of New England, Williams was member, secretary and chairman of the New England National Park Trust, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cutting (plant)
A plant cutting is a piece of a plant that is used in horticulture for vegetative (asexual) propagation. A piece of the stem or root of the source plant is placed in a suitable medium such as moist soil. If the conditions are suitable, the plant piece will begin to grow as a new plant independent of the parent, a process known as striking. A stem cutting produces new roots, and a root cutting produces new stems. Some plants can be grown from leaf pieces, called leaf cuttings, which produce both stems and roots. The scions used in grafting are also called cuttings. Propagating plants from cuttings is an ancient form of cloning. There are several advantages of cuttings, mainly that the produced offspring are practically clones of their parent plants. If a plant has favorable traits, it can continue to pass down its advantageous genetic information to its offspring. This is especially economically advantageous as it allows commercial growers to clone a certain plant to ensure consis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Flora Of Australia
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are considered when assessing the stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trees Of Australia
The flora of Australia comprises a vast assemblage of plant species estimated to over 30,000 vascular and 14,000 non-vascular plants, 250,000 species of fungi and over 3,000 lichens. The flora has strong affinities with the flora of Gondwana, and below the family level has a highly endemic angiosperm flora whose diversity was shaped by the effects of continental drift and climate change since the Cretaceous. Prominent features of the Australian flora are adaptations to aridity and fire which include scleromorphy and serotiny. These adaptations are common in species from the large and well-known families Proteaceae (''Banksia''), Myrtaceae (''Eucalyptus'' - gum trees), and Fabaceae ('' Acacia'' - wattle). The arrival of humans around 50,000 years ago and the settlement by Europeans from 1788, has had a significant impact on the flora. The use of fire-stick farming by Aboriginal people led to significant changes in the distribution of plant species over time, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bushfood
Bush tucker, also called bush food, is any food native to Australia and used as sustenance by Indigenous Australians, the Aboriginal and Torres Strait Islander peoples, but it can also describe any native flora or fauna used for culinary or medicinal purposes, regardless of the continent or culture. Animal native foods include kangaroo, emu, witchetty grubs and crocodile, and plant foods include fruits such as quandong, kutjera, spices such as lemon myrtle and vegetables such as warrigal greens and various native yams. Traditional Indigenous Australians' use of bushfoods has been severely affected by the settlement of Australia in 1788 and subsequent settlement by non-Indigenous peoples. The introduction of non-native foods, together with the loss of traditional lands, resulting in reduced access to native foods by Aboriginal people, and destruction of native habitat for agriculture, has accentuated the reduction in use. Since the 1970s, there has been recognition of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxalidales Of Australia
Oxalidales is an order of flowering plants, included within the rosid subgroup of eudicots. Compound leaves are common in Oxalidales and the majority of the species in this order have five or six sepals and petals. The following families are typically placed here:Stephens, P.F. (2001 onwards). Angiosperm Phylogeny Website. Version 9, June 2008. http://www.mobot.org/MOBOT/Research/APweb/ * Family Brunelliaceae * Family Cephalotaceae (''Cephalotus follicularis'') * Family Connaraceae * Family Cunoniaceae * Family Elaeocarpaceae * Family Huaceae * Family Oxalidaceae (wood sorrel family) The family Cephalotaceae contains a single species, a pitcher plant found in Southwest Australia. Under the Cronquist system, most of the above families were placed in the Rosales. The Oxalidaceae were placed in the Geraniales, and the Elaeocarpaceae split between the Malvales and Polygalales, in the latter case being treated as the Tremandraceae. Phylogeny The phylogeny of the Oxalidales shown b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cunoniaceae
Cunoniaceae is a family of 27 Genus, genera and about 335 species of woody plants in the order Oxalidales, mostly found in the tropical and wet temperate regions of the Southern Hemisphere. The greatest diversity of genera are in Australia and Tasmania (15 genera), New Guinea (9 genera), and New Caledonia (7 genera). The family is also present in Central America, South America, the Caribbean, Malesia, the islands of the South Pacific, Madagascar and surrounding islands. the family is absent from mainland Asia except from Peninsular Malaysia, and almost absent from mainland Africa apart from two species from Southern Africa (''Cunonia capensis'', ''Platylophus trifoliatus''). Several of the genera have remarkable disjunct ranges, found on more than one continent, e.g. ''Cunonia'' (Southern Africa & New Caledonia), ''Eucryphia'' (Australia & South America) ''Weinmannia'' (America and the Mascarenes). The family includes trees and shrubs; most are evergreen but a few are deciduous. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Division (horticulture)
Division, in horticulture and gardening, is a method of asexual plant propagation, where the plant (usually an herbaceous perennial) is broken up into two or more parts. Both the root and crown of each part is kept intact. The technique is of ancient origin, and has long been used to propagate bulbs such as garlic and saffron. plant tissue culture is also a form of division, where the meristem of the plant is divided. Overview Division is one of the three main methods used by gardeners to increase stocks of plants (the other two are seed-sowing and cuttings). Division is usually applied to mature perennial plants, but may also be used for shrubs with suckering roots, such as gaultheria, kerria and sarcococca. Annual and biennial plants do not lend themselves to this procedure, as their lifespan is too short. Practice Most perennials are best divided and replanted every few years to keep them healthy. They may also be divided in order to produce new plants. Those with woody crow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infertile
Infertility is the inability of a person, animal or plant to reproduce by natural means. It is usually not the natural state of a healthy adult, except notably among certain eusocial species (mostly haplodiploid insects). It is the normal state of a human child or other young offspring, because they have not undergone puberty, which is the body's start of reproductive capacity. In humans, infertility is the inability to become pregnant after one year of unprotected and regular sexual intercourse involving a male and female partner.Chowdhury SH, Cozma AI, Chowdhury JH. Infertility. Essentials for the Canadian Medical Licensing Exam: Review and Prep for MCCQE Part I. 2nd edition. Wolters Kluwer. Hong Kong. 2017. There are many causes of infertility, including some that medical intervention can treat. Estimates from 1997 suggest that worldwide about five percent of all heterosexual couples have an unresolved problem with infertility. Many more couples, however, experience involun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gwen Harden
Gwenneth Jean Harden (born 1940) is an Australian botanist and author. In 1990 the first of her four volumes of the ''Flora of New South Wales'' was published. The four-volume set was fully revised in 2000. The nightcap oak (''Eidothea hardeniana ''Eidothea hardeniana'', commonly named nightcap oak, is a species of tree, up to 40 m (130 ft) tall, of the plant family Proteaceae, which botanist Robert Kooyman recognised as a new species only recently in 2002. It is found only in ...'') is named in her honour. References 20th-century Australian botanists Botanists with author abbreviations 1940 births Botanists active in Australia Living people Recipients of the Medal of the Order of Australia {{Australia-bio-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fruit
In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particular have long propagated using the movements of humans and animals in a symbiotic relationship that is the means for seed dispersal for the one group and nutrition for the other; in fact, humans and many animals have become dependent on fruits as a source of food. Consequently, fruits account for a substantial fraction of the world's agricultural output, and some (such as the apple and the pomegranate) have acquired extensive cultural and symbolic meanings. In common language usage, "fruit" normally means the seed-associated fleshy structures (or produce) of plants that typically are sweet or sour and edible in the raw state, such as apples, bananas, grapes, lemons, oranges, and strawberries. In botanical usage, the term "fruit" also i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
