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Pigeon Island (Houtman Abrolhos)
Pigeon Island is a small island located need the middle of the Wallabi Group of the Houtman Abrolhos, an archipelago off the coast of Western Australia. It is almost entirely given over to western rock lobster fishers' camps, and as a result is far more disturbed than most other islands in the archipelago. A nearby island also seasonally populated by fishers is named Little Pigeon Island, hence Pigeon Island is sometimes referred to as "Big Pigeon Island". History The geographic location of Pigeon Island suggests that it might have been visited by survivors of the 1629 '' Batavia'' shipwreck, but there is no surviving evidence of this, either documentary or archaeological. It was mined for guano in the 20th century. Geography Pigeon Island is roughly triangular in shape, with a short side on the south west, and two long sides coming together at a point in the north east. The island is covered with infrastructure, with a high density of huts covering the entire island, right dow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Ocean
The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or ~19.8% of the water on Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by the Southern Ocean or Antarctica, depending on the definition in use. Along its core, the Indian Ocean has some large marginal or regional seas such as the Arabian Sea, Laccadive Sea, Bay of Bengal, and Andaman Sea. Etymology The Indian Ocean has been known by its present name since at least 1515 when the Latin form ''Oceanus Orientalis Indicus'' ("Indian Eastern Ocean") is attested, named after Indian subcontinent, India, which projects into it. It was earlier known as the ''Eastern Ocean'', a term that was still in use during the mid-18th century (see map), as opposed to the ''Western Ocean'' (Atlantic Ocean, Atlantic) before the Pacific Ocean, Pacific was surmised. Conversely, Ming treasure voyages, Chinese explorers in the Indian Oce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quaternary
The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million years ago to the present. The Quaternary Period is divided into two epochs: the Pleistocene (2.58 million years ago to 11.7 thousand years ago) and the Holocene (11.7 thousand years ago to today, although a third epoch, the Anthropocene, has been proposed but is not yet officially recognised by the ICS). The Quaternary Period is typically defined by the cyclic growth and decay of continental ice sheets related to the Milankovitch cycles and the associated climate and environmental changes that they caused. Research history In 1759 Giovanni Arduino proposed that the geological strata of northern Italy could be divided into four successive formations or "orders" ( it, quattro ordini). The term "quaternary" was introduced by Jules Desnoye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromus Hordeaceus
''Bromus hordeaceus'', the soft brome, is an annual or biennial species of grass in the true grass family ( Poaceae). It is also known in North America as bull grass, soft cheat, and soft chess. It is the most common species of ''Bromus'' in Britain, where it can be found on roadsides, waste ground, meadows, and cultivated land. It is found throughout Europe and western Asia, and was introduced into North and South America and Australia. Taxonomy Previously known as '' B. mollis'', this species belongs to a group of closely related species, including some hybrids, which are difficult to tell apart. Some of the other species in this group include: ''B. thominii, B. lepidus, B. ferronii,'' and ''B. molliformis''. Description The plant is pubescent entirely and lacks rhizomes. It can grow high, sometimes in tufts, sometimes singly. The smooth, yellowish brown culms measure wide at their base, and are minutely to densely pubescent, with hairs measuring up to long. The moderat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromus Diandrus
''Bromus diandrus'' is a species of grass known by the common names great brome and "ripgut brome". Description This is a brome grass which is native to the Mediterranean but has been introduced to much of the rest of the world. It does best in areas with a Mediterranean climate, such as California and parts of southern Australia, but it is quite tolerant of many climates. Ripgut brome is a winter annual that grows throughout winter and spring and matures in the summer. The adult plant is one to three feet in height with hairy, rough leaves about a centimeter wide. The membranous ligule is prominent, white with spiky hairs. The wide panicle nods like that of an oat plant, and it bears a large, splayed spikelet with a very long awn which can exceed five centimeters in length. The seeds easily break out of the spikelet. They are very sharp and very rough due to tiny barb-like hairs that face backward, allowing the seed to catch and lodge-like a fish hook. This characteristic make ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bromus Arenarius
''Bromus arenarius'' is a species of brome grass known by the common name Australian brome. It is native to much of Australia, and it is known in New Zealand and parts of North America as an introduced species. It is an annual grass growing up to 60 centimeters tall. Its narrow leaves are coated in soft hairs. The 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 o ... is a wide array of nodding, flat spikelets, each on an individual stalk that may be curved or wavy. External linksJepson Manual Treatment [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachyscome Ciliaris
''Brachyscome ciliaris'', commonly known as variable daisy, is a small bushy perennial herb with a prominent flower, which occurs throughout most of temperate Australia Description It grows as a bushy perennial herb up to 45 centimetre in height. Flowers range from white to purple. Taxonomy This species was first collected by Jacques Labillardière and published in his 1806 ''Novae Hollandiae Plantarum Specimen'' under the name ''Bellis ciliaris''. In 1832 Christian Friedrich Lessing transferred it into ''Brachyscome'', and the name has been ''Brachyscome ciliaris'' ever since. Because it is such a variable species, specimens have often been referred to new species, and hence this species has many taxonomic synonym The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Lin ...s, among them: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avena Barbata
''Avena barbata'' is a species of wild oat known by the common name slender wild oat. It has edible seeds. It is a diploidized autotetraploid grass (2n=4x=28). Its diploid ancestors are ''A. hirtula'' Lag. and ''A. wiestii'' Steud (2n=2x=14), which are considered Mediterranean and desert ecotypes, respectively, comprising a single species. ''A westie'' and ''A. hirtula'' are widespread in the Mediterranean Basin, growing in mixed stands with ''A. barbata'', though they are difficult to tell apart. This is a winter annual grass with thin tillers (stems) growing up to 60 to 80 centimeters in maximum height, but known to sometimes grow taller. The bristly spikelets are 2 to 3 centimeters long, not counting the bent awn which is up to 4 centimeters in length. ''Avena barbata'' largely reproduces by selfing in natural populations, with very low rates of outcrossing. ''A. barbata'' is native to central Asia (as far east as Pakistan) and the Mediterranean Basin. As an introduced spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austrostipa Elegantissima
''Austrostipa elegantissima'', commonly known as tall feather-grass, is a species of grass in the family Poaceae. It is native to southern Australia, from Western Australia to New South Wales. It grows as a decumbent perennial in a rhizomatous tussock with widespread leaves. It lacks basal leaves. It is found in areas that are not grazed by introduced livestock, which feed on this plant. The species was first described by Jacques Labillardière as ''Stipa elegantissima'' in 1805 and assigned to the genus ''Austrostipa'' in 1996. The plant is used by red-eared firetail The red-eared firetail (''Stagonopleura oculata''), also known as the boorin, is a small finch-like species of bird. It occurs in dense wetland vegetation of coastal to sub-coastal regions in Southwest Australia. Its appearance is considered appe ... (''Stagonopleura oculata'') in the construction of its nests. References {{Taxonbar, from1=Q22110721, from2=Q15505180 elegantissima Bunchgrasses of Australasia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atriplex
''Atriplex'' () is a plant genus of about 250 species, known by the common names of saltbush and orache (; also spelled orach). It belongs to the subfamily Chenopodioideae of the family Amaranthaceae ''s.l.''. The genus is quite variable and widely distributed. It includes many desert and seashore plants and halophytes, as well as plants of moist environments. The generic name originated in Latin and was applied by Pliny the Elder to the edible oraches. The name saltbush derives from the fact that the plants retain salt in their leaves; they are able to grow in areas affected by soil salination. Description Species of plants in genus ''Atriplex'' are annual or perennial herbs, subshrubs, or shrubs. The plants are often covered with bladderlike hairs, that later collapse and form a silvery, scurfy or mealy surface, rarely with elongate trichomes. The leaves are arranged alternately along the branches, rarely in opposite pairs, either sessile or on a petiole, and are sometim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atriplex Paludosa
''Atriplex paludosa'', commonly known as marsh saltbush, is a species of saltbush endemic to Australia. Description It grows as an erect shrub up to a metre high. Leaves are oval in shape, one to four centimetres long, and 2 to 15 millimetres wide. Taxonomy It was first published by Robert Brown in 1810 based on specimen material collected at Port Dalrymple, the site of present-day Launceston, Tasmania. Four subspecies are recognised: ''A. paludosa'' subsp. ''paludosa'', ''A. paludosa'' subsp. ''baudinii'', ''A. paludosa'' subsp. ''cordata'' and ''A. paludosa'' subsp. ''moquiniana''. Distribution and habitat It occurs in southwestern Western Australia, South Australia, Victoria and coastal Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi .... Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atriplex Cinerea
''Atriplex cinerea'', commonly known as grey saltbush, coast saltbush, barilla or ''truganini'', is a plant species in the family Amaranthaceae. It occurs in sheltered coastal areas and around salt lakes in the Australian states of Western Australia, South Australia, Tasmania, Victoria and New South Wales. The Latin specific name ''cinerea'' means "ashy". ''Atriplex cinerea'' has a chromosome number 2n=54, indicating the species is hexaploid as the base number in ''Atriplex'' is 9. Description ''Atriplex cinerea'' is a prostrate to erect, heavily branched, leafy shrub growing up to 1.8m high and up to 2.5 m wide. Stems are initially ridged and angular, becoming woody with age. The leaves are elliptic to oblong. 40 mm long, 15 mm wide. Petioles are 1–3 mm. Leaves alternate and are silver or grey-green in colour. The plant is covered with bladderlike hairs. The species is monoecious or dioecious. The male flowers in purple globular clusters (but look yellow when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anagallis Arvensis
''Anagallis arvensis'' ( syn. ''Lysimachia arvensis''), commonly known as the scarlet pimpernel, red pimpernel, red chickweed, poor man's barometer, poor man's weather-glass, shepherd's weather glass or shepherd's clock, is a species of low-growing annual plant with brightly coloured flowers, most often scarlet but also bright blue and sometimes pink. The native range of the species is Europe and Western Asia and North Africa. The species has been distributed widely by humans, either deliberately as an ornamental flower or accidentally. ''A. arvensis'' is now naturalised almost worldwide, with a range that encompasses the Americas, Central and East Asia, the Indian Subcontinent, Malesia, the Pacific Islands, Australasia and Southern Africa. Traditionally included in the primrose family Primulaceae, the genus ''Anagallis'' was placed in the family Myrsinaceaefull pdf.text until that family in turn was included in Primulaceae in the APG III system. The genus ''Anagallis'' is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
