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Asplenium Appendiculatum
''Asplenium appendiculatum'' (formerly known as ''Asplenium terrestre''), ground spleenwort, is a common native fern to Australia and New Zealand. It usually grows in cool damp conditions, among rocks, on logs or as an epiphyte. Description ''Asplenium appendiculatum '' has foliage that is dark green, with blades that are 100-300 × 50–150 mm long, leathery and slightly drooping.de Lange, P.J. (2018): ''Asplenium appendiculatum'' subsp. ''appendiculatum'' Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. http://www.nzpcn.org.nz/flora_details.aspx?ID=2053 ccessed 7 Mar. 2018 Blade is lanceolate (slightly wider at a short distance above the base, tapering to a point at the tip) to oblong (tapering at the ends but about the same width throughout) in shape. Stipe (stalk below the blade) is 50–150 mm long is grooved, green above, brown below and scattered with narrow triangle scales. The rachis (stalk within the blade) is green, sca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, smaller islands. With an area of , Australia is the largest country by area in Oceania and the world's List of countries and dependencies by area, sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a Megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and climates, with Deserts of Australia, deserts in the centre, tropical Forests of Australia, rainforests in the north-east, and List of mountains in Australia, mountain ranges in the south-east. The ancestors of Aboriginal Australians began arriving from south east Asia approximately Early human migrations#Nearby Oceania, 65,000 years ago, during the Last Glacial Period, last i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand
New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island country by area, covering . New Zealand is about east of Australia across the Tasman Sea and south of the islands of New Caledonia, Fiji, and Tonga. The country's varied topography and sharp mountain peaks, including the Southern Alps, owe much to tectonic uplift and volcanic eruptions. New Zealand's capital city is Wellington, and its most populous city is Auckland. The islands of New Zealand were the last large habitable land to be settled by humans. Between about 1280 and 1350, Polynesians began to settle in the islands and then developed a distinctive Māori culture. In 1642, the Dutch explorer Abel Tasman became the first European to sight and record New Zealand. In 1840, representatives of the United Kingdom and Māori chiefs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sorus
A sorus (pl. sori) is a cluster of sporangia (structures producing and containing spores) in ferns and fungi. A coenosorus (plural coenosori) is a compound sorus composed of multiple, fused sori. Etymology This New Latin word is from Ancient Greek σωρός (''sōrós'' 'stack, pile, heap'). Structure In lichens and other fungi, the sorus is surrounded by an external layer. In some red algae, it may take the form of depression into the thallus. In ferns, the sori form a yellowish or brownish mass on the edge or underside of a fertile frond. In some species, they are protected during development by a scale or film of tissue called the indusium, which forms an umbrella-like cover. Lifecycle significance Sori occur on the sporophyte generation, the sporangia within producing haploid meiospores. As the sporangia mature, the indusium shrivels so that spore release is unimpeded. The sporangia then burst and release the spores. As an aid to identification The shape, arrangemen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asplenium Appendiculatum Sori
''Asplenium'' is a genus of about 700 species of ferns, often treated as the only genus in the family Aspleniaceae, though other authors consider ''Hymenasplenium'' separate, based on molecular phylogenetic analysis of DNA sequences, a different chromosome count, and structural differences in the rhizomes. The type species for the genus is ''Asplenium marinum''. The most common vernacular name is spleenworts, applied to the more "typical" species. '' A. nidus'' and several similar species are called bird's-nest ferns, the ''Camptosorus'' group is known as walking ferns, and distinct names are applied to some other particularly well-known species. Taxonomy and genetics Many groups of species have been separated from ''Asplenium'' as segregate genera. These include ''Camptosorus'', ''Ceterach'', ''Phyllitis'', and ''Tarachia'', but these species can form hybrids with other ''Asplenium'' species and because of this are usually included in a more broadly defined ''Asplenium''. Some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asplenium Bulbiferum
''Asplenium bulbiferum'', known as mother spleenwort, is a fern species native to New Zealand only. It is also called hen and chicken fern and, in the Māori language, pikopiko, mouku or mauku. Its fronds are eaten as a vegetable. It grows small bulbils on top of its fronds. Once grown to about , these offspring fall off and, provided the soil they land in is kept moist, develop a root system and grow into new ferns. This additional means of reproduction can be employed with greater ease than propagation by spores. There are a number of similar Southern Hemisphere species which have a similar mode of reproduction, including '' Asplenium daucifolium''. ''Asplenium bulbiferum'' commonly grows in most bush areas in New Zealand. It thrives in many situations from shade to partial sunlight. Similar species It is often confused with ''Asplenium gracillimum'' which is a fern species native to both New Zealand and Australia. ''A. gracillimum'' is the fertile allotetraploid P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doctrine Of Signatures
The doctrine of signatures, dating from the time of Dioscorides and Galen, states that herbs resembling various parts of the body can be used by herbalists to treat ailments of those body parts. A theological justification, as stated by botanists such as William Coles, was that God would have wanted to show men what plants would be useful for. It is today considered to be pseudoscience, and has led to many deaths and severe illnesses. For instance birthwort (so-called because of its resemblance to the uterus), once used widely for pregnancies, is carcinogenic and very damaging to the kidneys, owing to its aristolochic acid content. As a defense against predation, many plants contain toxic chemicals, the action of which is not immediately apparent, or easily tied to the plant rather than other factors History The concept dates from the time of Dioscorides and Galen. Paracelsus (1493–1541) developed the concept, writing that "Nature marks each growth ... according to it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spleen
The spleen is an organ found in almost all vertebrates. Similar in structure to a large lymph node, it acts primarily as a blood filter. The word spleen comes .σπλήν Henry George Liddell, Robert Scott, ''A Greek-English Lexicon'', on Perseus Digital Library The spleen plays very important roles in regard to s (erythrocytes) and the . It removes old red blood cells and holds a reserve of blood, which can be valuable in case of |
Patrick Brownsey
Patrick John Brownsey (5 May 1948 – 3 November 2023) was a British-born New Zealand Botany, botanist who specialised in the systematics of New Zealand ferns, and was for 44 years curator of botany at the National Museum of New Zealand and Te Papa. Early life and education Brownsey was born in Wells, Somerset on 5 May 1948, to Margaret and John Derek Brownsey; his father worked as a banker. From 1959 to 1966 he attended grammar school in Crewkerne, Somerset, where he was inspired to study biology, later pursuing amateur natural history in the countryside of Somerset, Scotland, and Wales. Brownsey studied botany at the University of Leeds under Irene Manton, one of the rare female professors teaching there in the 1960s. The Botany Department at Leeds was strong in fern systematics, and lecturers Arthur Sledge and John Lovis were both familiar with the New Zealand flora. Two of Brownsey's fellow graduate students were New Zealanders Ross Beever and Jessica Beever, and they enc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
