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Hymenophyton Flabellatum
''Hymenophyton flabellatum'' is a species of the order Pallaviciniales (liverworts), one of perhaps several species in the genus ''Hymenophyton''. It is a dendroid thalloid liverwort belongs to the family Hymenophytaceae and is commonly known as Fan liverwort. It is found in New Zealand, Chile, and common in wet forests of Australia and Tasmania. ''Hymenophyton flabellatum'' closely resembles with small filmy fern, ''Hymenophyllum'' and can be confused with the liverwort, ''Symphyogyna hymenophyllum.'' Description ''Hymenophyton flabellatum'' is plagiotropic, branched rhizome-like axes with aerial shoots divided into upright stalks. Palmate fronds or flabellate are olive green, with forking, 5-6 times and forked thallus wings spreading out horizontally. Segments are flat, slightly undulate at borders, 0.8 to 1.2mm in wide. Segments with obtuse apex are limited in growth. Growing apex contains 1-celled marginal slime papillae Lamina cells are 35-49µm in length, 23-30µm wide, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pallaviciniales
Pallaviciniales is an order of liverworts. Taxonomy * Pallaviciniineae Schuster 1984 ** Hymenophytaceae Schuster 1963 *** ''Hymenophyton'' Dumortier 1835 Umbraculum'' Gottsche 1861 non Schumacher 1817 non Kuntze 1891] ** Moerckiaceae Stotler & Crandall-Stotler 2007 *** ''Hattorianthus'' Schuster & Inoue 1975 *** ''Moerckia'' Gottsche 1860 [''Blyttia (liverwort), Blyttia'' Endlicher 1840 non Arnott 1838 non Fries 1839; '' Cordaea'' Nees 1833 non Sprengel 1831] ** Pallaviciniaceae Migula 1904 *** Pallavicinioideae Migula ex Grolle **** ''Jensenia'' Lindberg 1867 'Mittenia'' Gottsche 1864 non Lindberg 1863; ''Makednothallus">Mittenia.html" ;"title="'Mittenia">'Mittenia'' Gottsche 1864 non Lindberg 1863; ''Makednothallus'' Verdoorn 1932] **** ''Pallavicinia'' Gray 1821 nom. cons. [''Pallavicinius'' (sic); ''Dilaena'' Dumortier 1822; ''Diplolaena'' Dumortier 1831 non Brown 1814; '' Hollia'' Endlicher 1842 non Sieber 1826 non Heynhold 1846; '' Steetzia'' Lehmann 1846 non Sonder 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hymenophyton
''Hymenophyton'' is a genus of the order Pallaviciniales (liverworts) containing one to three species. The genus was formerly described as monotypic, as each member possesses a close morphological resemblance, but phytochemical and molecular evidence now supports an infrageneric classification two separate species. The name ''Hymenophyton leptopodum'', regarded as a synonym of ''Hymenophyton flabellatum'', has been resurrected. A population found in Chile is regarded as a separate clade, and the reinstatement of ''Hymenophyton pedicellatum ''Hymenophyton'' is a genus of the order Pallaviciniales (liverworts) containing one to three species. The genus was formerly described as monotypic, as each member possesses a close morphological resemblance, but phytochemical and molecular evid ...'' has been proposed. References * Pallaviciniales Liverwort genera {{Bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendroid (topology)
In mathematics, a dendroid is a type of topological space, satisfying the properties that it is hereditarily unicoherent (meaning that every subcontinuum of ''X'' is unicoherent), arcwise connected, and forms a continuum. The term dendroid was introduced by Bronisław Knaster lecturing at the University of Wrocław,. although these spaces were studied earlier by Karol Borsuk and others.. proved that dendroids have the fixed-point property: Every continuous function from a dendroid to itself has a fixed point. proved that every dendroid is ''tree-like'', meaning that it has arbitrarily fine open covers whose nerve is a tree. The more general question of whether every tree-like continuum has the fixed-point property, posed by , was solved in the negative by David P. Bellamy, who gave an example of a tree-like continuum without the fixed-point property. In Knaster's original publication on dendroids, in 1961, he posed the problem of characterizing the dendroids which can be embed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tasmania
) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_date = Colony of Tasmania , established_title2 = Federation , established_date2 = 1 January 1901 , named_for = Abel Tasman , demonym = , capital = Hobart , largest_city = capital , coordinates = , admin_center = 29 local government areas , admin_center_type = Administration , leader_title1 = Monarch , leader_name1 = Charles III , leader_title2 = Governor , leader_name2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Growling Swallett 2
Growling is a low, guttural vocalization produced by animals as an aggressive warning but can also be found in other contexts such as playful behaviors or mating. Different animals will use growling in specific contexts as a form of communication. In humans, low or dull rumbling noises may also be emitted when they are discontent with something or they are angry, although this human sound is often termed "groaning". Animals that growl include felines, bears, canines and crocodilians. The animals most commonly known for growling are canines, bears, and felines. ''Grrr'' is an onomatopoeic word which imitates the growling sound of animals, often used with other related meanings. It is one of the rare pronounceable words of the English language that consists solely of consonants. Its most simple use is by children imitating animals. An example would be: "Mom!, Dad!, Look at me! I'm a polar bear! Grrr!" This word is also widely used in various titles to express growling when wri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frond
A frond is a large, divided leaf. In both common usage and botanical nomenclature, the leaves of ferns are referred to as fronds and some botanists restrict the term to this group. Other botanists allow the term frond to also apply to the large leaves of cycads, as well as palms (Arecaceae) and various other flowering plants, such as mimosa or sumac. "Frond" is commonly used to identify a large, compound leaf, but if the term is used botanically to refer to the leaves of ferns and algae it may be applied to smaller and undivided leaves. Fronds have particular terms describing their components. Like all leaves, fronds usually have a stalk connecting them to the main stem. In botany, this leaf stalk is generally called a petiole, but in regard to fronds specifically it is called a stipe, and it supports a flattened blade (which may be called a lamina), and the continuation of the stipe into this portion is called the rachis. The blades may be simple (undivided), pinnatifid ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thallus
Thallus (plural: thalli), from Latinized Greek (), meaning "a green shoot" or "twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria. Many of these organisms were previously known as the thallophytes, a polyphyletic group of distantly related organisms. An organism or structure resembling a thallus is called thalloid, thallodal, thalliform, thalline, or thallose. A thallus usually names the entire body of a multicellular non-moving organism in which there is no organization of the tissues into organs. Even though thalli do not have organized and distinct parts (leaves, roots, and stems) as do the vascular plants, they may have analogous structures that resemble their vascular "equivalents". The analogous structures have similar function or macroscopic structure, but different microscopic structure; for example, no thallus has vascular tissue. In exceptional cases such as the Lemnoideae, where ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spore
In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, fungi and protozoa. Bacterial spores are not part of a sexual cycle, but are resistant structures used for survival under unfavourable conditions. Myxozoan spores release amoeboid infectious germs ("amoebulae") into their hosts for parasitic infection, but also reproduce within the hosts through the pairing of two nuclei within the plasmodium, which develops from the amoebula. In plants, spores are usually haploid and unicellular and are produced by meiosis in the sporangium of a diploid sporophyte. Under favourable conditions the spore can develop into a new organism using mitotic division, producing a multicellular gametophyte, which eventually goes on to produce gametes. Two gametes fuse to form a zygote which develops into a new s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagarostrobos
''Lagarostrobos franklinii'' is a species of conifer native to the wet southwestern corner of Tasmania, Australia. It is often known as the Huon pine or Macquarie pine, although it is actually a podocarp (Podocarpaceae), not a true pine (Pinaceae). It is the sole species in the genus ''Lagarostrobos''; one other species ''L. colensoi'' (endemic to New Zealand) formerly included has been transferred to a new genus ''Manoao''. The genus was also formerly included in a broader circumscription of the genus ''Dacrydium''. In molecular phylogenetic analyses ''Lagorostrobos'' was found to be related to '' Parasitaxus'' (a parasitic and monotypic genus from New Caledonia) and ''Manoao'', but their exact relationships are unresolved. The wood is highly prized for its golden yellow colour, fine grain, and natural oils that resist rotting. The chemical giving the timber its unique smell and preservative qualities is methyl eugenol. It has been planted in the grounds of Crathes Castle, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sabatinca Chalcophanes
''Sabatinca chalcophanes'' is a moth of the family Micropterigidae. This species is endemic to New Zealand and is found in the North Island apart from Northland and in the South Island apart from in the east, south of Queen Charlotte Sound. The adults of this species are on the wing from November to April and as a result of this long period it has been hypothesised that this species has two broods. The preferred habitat of this species is in damp lowland forest. The larval host species are foliose liverwort species including ''Hymenophyton flabellatum.'' Taxonomy This species was described by Edward Meyrick in 1885 using material collected at "Makatoku" (likely a misspelling of Makotuku), in the Hawkes Bay, in March and named ''Palaeomicra chalcophanes''. Meyrick went on to give a fuller description of the species published in 1886. In 1912 Meyrick wrongly synonymised ''S. chalcophanes'' with '' S. incongruella'' which subsequently caused confusion until the error was rectified ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
