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Asplenium Trichomanes Subsp. Coriaceifolium
''Asplenium trichomanes'' subsp. ''coriaceifolium'' is an allotetraploid hybrid fern (2''n'' = 144 chromosomes) of the family Aspleniaceae. It was found for the first time in the Soller Valley in the Serra de Tramuntana of the island of Mallorca, Spain, and described by both Spanish and German botanists at the same time. The Spaniards gave it the name ''Asplenium azomanes''. Its fronds are coriacea as plastic and the rachis is very thick, dark garnet color and brilliance. A typical feature of this fern is the existence of a small atrium at the base of the pinnae medium and lower geared towards the apex of the frond with one or two sori in its underside. Sporulation occurs from October to March. Habitat It lives among the stones of the walls of the terraces and in the crevices of limestone rocks oriented to the north and northwest. Depending on the degree of exposure to the sun, its phenotype changes a lot, becoming more coriaceous the more sunlight it receives. In the driest mon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allotetraploid
Polyploidy is a condition in which the cells of an organism have more than one pair of ( homologous) chromosomes. Most species whose cells have nuclei (eukaryotes) are diploid, meaning they have two sets of chromosomes, where each set contains one or more chromosomes and comes from each of two parents, resulting in pairs of homologous chromosomes between sets. However, some organisms are polyploid. Polyploidy is especially common in plants. Most eukaryotes have diploid somatic cells, but produce haploid gametes (eggs and sperm) by meiosis. A monoploid has only one set of chromosomes, and the term is usually only applied to cells or organisms that are normally diploid. Males of bees and other Hymenoptera, for example, are monoploid. Unlike animals, plants and multicellular algae have life cycles with two alternating multicellular generations. The gametophyte generation is haploid, and produces gametes by mitosis, the sporophyte generation is diploid and produces spores by meiosis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fern
A fern (Polypodiopsida or Polypodiophyta ) is a member of a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. The polypodiophytes include all living pteridophytes except the lycopods, and differ from mosses and other bryophytes by being vascular, i.e., having specialized tissues that conduct water and nutrients and in having life cycles in which the branched sporophyte is the dominant phase. Ferns have complex leaves called megaphylls, that are more complex than the microphylls of clubmosses. Most ferns are leptosporangiate ferns. They produce coiled fiddleheads that uncoil and expand into fronds. The group includes about 10,560 known extant species. Ferns are defined here in the broad sense, being all of the Polypodiopsida, comprising both the leptosporangiate (Polypodiidae) and eusporangiate ferns, the latter group including horsetails, whisk ferns, marattioid ferns, and ophioglossoid ferns. Ferns first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspleniaceae
The Aspleniaceae (spleenworts) are a family of ferns, included in the order Polypodiales. The composition and classification of the family have been subject to considerable changes. In particular, there is a narrow circumscription, Aspleniaceae s.s. (adopted here), in which the family contains only two genera, and a very broad one, Aspleniaceae s.l., in which the family includes 10 other families kept separate in the narrow circumscription, with the Aspleniaceae s.s. being reduced to the subfamily Asplenioideae. The family has a worldwide distribution, with many species in both temperate and tropical areas. Elongated unpaired sori are an important characteristic of most members of the family. Description Members of the family grow from rhizomes, that are either creeping or somewhat erect, and are usually but not always unbranched, and have scales that usually have a lattice-like (clathrate) structure. In some species, for example ''Asplenium nidus'', the rhizomes form a kind o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serra De Tramuntana
The Serra de Tramuntana (, es, Sierra de Tramontana) is a mountain range running southwest–northeast which forms the northern backbone of the Spanish island of Mallorca. It is also the name given to the comarca of the same area. On 27 June 2011, the Tramuntana Range was awarded World Heritage Status by UNESCO as an area of great physical and cultural significance. Geography The highest peak is the Puig Major, which at 1,436 meters, is the highest mountain in the Balearic Islands. The second highest peak is Penyal de Migdia which is at 1,398 meters. It is followed by the Puig de Massanella, which stands at 1,364 meters. The mountain range also host the deepest cave of Majorca, the Cova de sa Campana at -358 meters, and the deepest underground lake at -334 meters. The climate in the Tramuntana Range is significantly wetter than the rest of the island, recording as much as 1507 mm (59.3 inches) of precipitation per year, in comparison with some other parts of the island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mallorca, Spain
Mallorca, or Majorca, is the largest island in the Balearic Islands, which are part of Spain and located in the Mediterranean. The capital of the island, Palma, is also the capital of the autonomous community of the Balearic Islands. The Balearic Islands have been an autonomous region of Spain since 1983. There are two small islands off the coast of Mallorca: Cabrera (southeast of Palma) and Dragonera (west of Palma). The anthem of Mallorca is " La Balanguera". Like the other Balearic Islands of Menorca, Ibiza, and Formentera, the island is an extremely popular holiday destination, particularly for tourists from the Netherlands, Germany and the United Kingdom. The international airport, Palma de Mallorca Airport, is one of the busiest in Spain; it was used by 28 million passengers in 2017, with use increasing every year since 2012. Etymology The name derives from Classical Latin ''insula maior'', "larger island". Later, in Medieval Latin, this became ''Maiorca'', "the larger ... [...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] |
Rachis
In biology, a rachis (from the grc, ῥάχις [], "backbone, spine") is a main axis or "shaft". In zoology and microbiology In vertebrates, ''rachis'' can refer to the series of articulated vertebrae, which encase the spinal cord. In this case the ''rachis'' usually forms the supporting axis of the body and is then called the spine or vertebral column. ''Rachis'' can also mean the central shaft of pennaceous feathers. In the gonad of the invertebrate nematode '' Caenorhabditis elegans'', a rachis is the central cell-free core or axis of the gonadal arm of both adult males and hermaphrodites where the germ cells have achieved pachytene and are attached to the walls of the gonadal tube. The rachis is filled with cytoplasm. In botany In plants, a rachis is the main axis of a compound structure. It can be the main stem of a compound leaf, such as in ''Acacia'' or ferns, or the main, flower-bearing portion of an inflorescence above a supporting peduncle. Where it subdivides ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balearic Islands
The Balearic Islands ( es, Islas Baleares ; or ca, Illes Balears ) are an archipelago in the Balearic Sea, near the eastern coast of the Iberian Peninsula. The archipelago is an autonomous community and a province of Spain; its capital is Palma. The 2007 Statute of Autonomy designates the Balearic Islands as one of the ''nationalities'' of Spain. The official languages of the Balearic Islands are Catalan and Spanish. Its four largest islands are Mallorca, Menorca, Ibiza, and Formentera. Many of its minor islands and islets are close to the larger islands, including Cabrera, Dragonera, and S'Espalmador. The islands have a Mediterranean climate, and the four major islands are all popular tourist destinations. Ibiza, in particular, is known as an international party destination, attracting many of the world's most popular DJs to its nightclubs. The islands' culture and cuisine are similar to those of the rest of Spain but have their own distinctive features. Etymology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ibiza
Ibiza (natively and officially in ca, Eivissa, ) is a Spanish island in the Mediterranean Sea off the eastern coast of the Iberian Peninsula. It is from the city of Valencia. It is the third largest of the Balearic Islands, in Spain. Its largest settlements are Ibiza Town ( ca, Vila d'Eivissa, or simply ), Santa Eulària des Riu, and Sant Antoni de Portmany. Its highest point, called Sa Talaiassa (or Sa Talaia), is above sea level. Ibiza is well known for its nightlife and electronic dance music club scene in the summer, which attract large numbers of tourists. The island's government and the Spanish Tourist Office have worked toward promoting more family-oriented tourism. Ibiza is a UNESCO World Heritage Site. Ibiza and the nearby island of Formentera to its south are called the Pine Islands, or " Pityuses". Names The official, Catalan name is ''Eivissa'' (). Its name in Spanish is ''Ibiza'' (). In British English, the name is usually pronounced in an approximatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formentera
Formentera (, ) is the smallest and most southerly island of the Pityusic Islands group (comprising Ibiza and Formentera, as well as various small islets), which belongs to the Balearic Islands autonomous community (Spain). It covers an area of (including offshore islets) and had a population of 10,582 at the Census of 1 November 2011; the latest official estimate (as at 1 January 2019) was 12,111. History The island's name is usually said to derive from the Latin word ''frumentarium'', meaning "granary". The island was occupied in prehistoric times, going back to 2,000–1,600 BC. Archaeological sites from that period remain in Ca na Costa, Cap de Barbaria (multiple sites) and Cova des Fum. The island had been occupied by the Carthaginians before passing to the ancient Romans. In succeeding centuries, it passed to the Visigoths, the Byzantines, the Vandals, and the Arabs. In 1109 it was the target of a devastating attack by the Norwegian king Sigurd I at the head of the "N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iberian Peninsula
The Iberian Peninsula (), ** * Aragonese and Occitan: ''Peninsula Iberica'' ** ** * french: Péninsule Ibérique * mwl, Península Eibérica * eu, Iberiar penintsula also known as Iberia, is a peninsula in southwestern Europe, defining the westernmost edge of Eurasia. It is principally divided between Spain and Portugal, comprising most of their territory, as well as a small area of Southern France, Andorra, and Gibraltar. With an area of approximately , and a population of roughly 53 million, it is the second largest European peninsula by area, after the Scandinavian Peninsula. Name Greek name The word ''Iberia'' is a noun adapted from the Latin word "Hiberia" originating in the Ancient Greek word Ἰβηρία ('), used by Greek geographers under the rule of the Roman Empire to refer to what is known today in English as the Iberian Peninsula. At that time, the name did not describe a single geographical entity or a distinct population; the same name was us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morocco
Morocco (),, ) officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of North Africa. It overlooks the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to the east, and the disputed territory of Western Sahara to the south. Mauritania lies to the south of Western Sahara. Morocco also claims the Spanish exclaves of Ceuta, Melilla and Peñón de Vélez de la Gomera, and several small Spanish-controlled islands off its coast. It spans an area of or , with a population of roughly 37 million. Its official and predominant religion is Islam, and the official languages are Arabic and Berber; the Moroccan dialect of Arabic and French are also widely spoken. Moroccan identity and culture is a mix of Arab, Berber, and European cultures. Its capital is Rabat, while its largest city is Casablanca. In a region inhabited since the Paleolithic Era over 300,000 years ago, the first Moroccan s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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