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Dryopteris Aemula
''Dryopteris aemula'', the hay-scented buckler-fern or hay-scented fern, is a species of perennial leptosporangiate fern. Description ''Dryopteris aemula'' grows as a crown of fronds arising from a short ascending rhizome. The rachis is dark purple-brown with red-brown lanceolate scales. Leaves are tri-pinnate, triangular-ovate or triangular-lanceolate, long, often arching, semi-evergreen and pale yellow-green. Scattered small sessile glands grow on the underside or both surfaces of the fronds. Pinnae are slightly concave giving the frond a characteristic crisped appearance. The plant is hay-scented. Sori or spore-producing organs occur in a row down each side of the midrib. The indusium of the sorus is irregularly toothed and edged with sessile glands. The plant does not reproduce vegetatively and relies upon spores to generate new individuals. Taxonomy Distribution ''Dryopteris aemula'' is confined to the atlantic coastal areas of western Europe and Macaronesia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galloway
Galloway ( ; ; ) is a region in southwestern Scotland comprising the counties of Scotland, historic counties of Wigtownshire and Kirkcudbrightshire. It is administered as part of the council areas of Scotland, council area of Dumfries and Galloway. Galloway is bounded by sea to the west and south, the Galloway Hills to the north, and the River Nith to the east; the border between Kirkcudbrightshire and Wigtownshire is marked by the River Cree. The definition has, however, fluctuated greatly in size over history. A native or inhabitant of Galloway is called a Gallovidian. The region takes its name from the ''Gall-Gàidheil'', or "stranger Gaels", Norse–Gaels, a people of mixed Gaelic and Norse descent who seem to have settled here in the 10th century. Galloway remained a Gàidhealtachd area for much longer than other regions of the Scottish Lowlands and a Galwegian Gaelic, distinct local dialect of the Scottish Gaelic language survived into at least the 18th century. A hardy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Midrib
A primary vein, also known as the midrib, is the main vascular structure running through the center of a leaf. The primary vein is crucial for the leaf’s efficiency in photosynthesis and overall health, as it ensures the proper flow of materials and structural integrity. It serves several critical functions, including structural support, as the primary vein helps the leaf maintain its shape and structure; food and water transportation, as it contains xylem and phloem tissues that transport water, minerals, and nutrients to and from the leaf; and connection to the stem, as it links the leaf to its vascular system, facilitating the exchange of materials between the leaf and the rest of the plant Plants are the eukaryotes that form the Kingdom (biology), kingdom Plantae; they are predominantly Photosynthesis, photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with c .... From the primary vein, secondar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British NVC Community W17 (Quercus Petraea - Betula Pubescens - Dicranum Majus Woodland)
NVC community W17 (''Quercus petraea - Betula pubescens - Dicranum majus'' woodland) is one of the woodland communities in the British National Vegetation Classification system. It is one of the six communities falling in the "mixed deciduous and oak/birch woodlands" group. This is a widely distributed community in northern and western Britain and represents mossy deciduous woodland of the uplands. There are four subcommunities. Community composition Two constant species are found in the tree canopy of this community: * Sessile oak (''Quercus petraea'') * Downy birch (''Betula pubescens'') Eight constant species are found in the field and ground layers of this community: * Wavy hair grass ('' Deschampsia flexuosa'') * Greater fork-moss (''Dicranum majus'') * Glittering wood-moss ('' Hylocomium splendens'') * Waved silk-moss ('' Plagiothecium undulatum'') * Red-stemmed feather-moss ('' Pleurozium schreberi'') * Bank haircap moss ('' Polytrichum formosum'') * Little shaggy-moss ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British National Vegetation Classification
__NOTOC__ The British National Vegetation Classification or NVC is a system of classifying natural habitat types in Great Britain according to the vegetation they contain. A large scientific meeting of ecologists, botanists, and other related professionals in the United Kingdom resulted in the publication of a compendium of five books: '' British Plant Communities'', edited by John S. Rodwell, which detail the incidence of plant species in twelve major habitat types in the British natural environment. They are the first systematic and comprehensive account of the vegetation types of the country. They cover all natural, semi-natural and major artificial habitats in Great Britain (not Northern Ireland) and represent fifteen years of research by leading plant ecologists. From the data collated from the books, commercial software products have been developed to help to classify vegetation identified into one of the many habitat types found in Great Britain – these include ''MAT ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medway Council
Medway Council is the local authority of Medway, a local government district in the ceremonial county of Kent, England. The council is a unitary authority, being a district council which also performs the functions of a county council; it is independent from Kent County Council. The council was created on 1 April 1998 and replaced Rochester-upon-Medway City Council and Gillingham Borough Council. The council has been under no overall control since by-elections in February 2025, being run by a minority Labour administration. It meets at the St George's Centre in the Chatham Maritime area of the borough and has its main offices at Gun Wharf in Chatham. History Throughout the 19th century there had been proposals to join the Medway towns under a single authority. By 1903 moves began to take place: that year saw the creation of the Borough of Gillingham, to which, in 1928, the adjoining parish of Rainham was added. In 1944, a Medway Towns Joint Amalgamation Committee wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Weald
The Weald () is an area of South East England between the parallel chalk escarpments of the North and the South Downs. It crosses the counties of Hampshire, Surrey, West Sussex, East Sussex, and Kent. It has three parts, the sandstone "High Weald" in the centre, the clay "Low Weald" periphery and the Greensand Ridge, which stretches around the north and west of the Weald and includes its highest points. The Weald once was covered with forest and its name, Old English in origin, signifies "woodland". The term is still used, as scattered farms and villages sometimes refer to the Weald in their names. Etymology The name "Weald" is derived from the Old English ', meaning "forest" (cognate of German ''Wald'', but unrelated to English "wood"). This comes from a Germanic root of the same meaning, and ultimately from Indo-European. ''Weald'' is specifically a West Saxon form; '' wold'' is the Anglian form of the word. The Middle English form of the word is ''wēld'', and the modern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oceanic Climate
An oceanic climate, also known as a marine climate or maritime climate, is the temperate climate sub-type in Köppen climate classification, Köppen classification represented as ''Cfb'', typical of west coasts in higher middle latitudes of continents, generally featuring cool to warm summers and cool to mild winters (for their latitude), with a relatively narrow annual temperature range and few extremes of temperature. Oceanic climates can be found in both hemispheres generally between 40 and 60 degrees latitude, with subpolar versions extending to 70 degrees latitude in some coastal areas. Other varieties of climates usually classified together with these include subtropical highland climates, represented as ''Cwb'' or ''Cfb'', and subpolar oceanic or cold subtropical highland climates, represented as ''Cfc'' or ''Cwc''. Subtropical highland climates occur in some mountainous parts of the subtropics or tropics, some of which have monsoon influence, while their cold variants an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macaronesia
Macaronesia (; ) is a collection of four volcanic archipelagos in the Atlantic Ocean#North Atlantic, North Atlantic Ocean, off the coast of North Africa and Europe. Each archipelago is made up of a number of list of islands in the Atlantic Ocean, Atlantic oceanic islands, which were formed by seamounts on the ocean floor whose peaks have risen above the ocean's surface. Each of the archipelagos is a distinct political entity: the Azores and Madeira are Autonomous Regions of Portugal, autonomous regions of Portugal, the Canary Islands is an autonomous communities of Spain, autonomous community of Spain, while Cape Verde is a sovereign state and member states of the United Nations, member of the United Nations. Politically, the islands belonging to Portugal and Spain are parts of the European Union, while Cape Verde is a member of the African Union. Geologically, most of Macaronesia is part of the African Plate, African tectonic plate. The Azores are located in the Azores triple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spores
In biology, a spore is a unit of sexual (in fungi) 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. They were thought to have appeared as early as the mid-late Ordovician period as an adaptation of early land plants. 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. In some rare cases, a diploid spore is also produced in some algae, or fungi. Under favourable conditions, the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sorus
A sorus (: sori) is a cluster of sporangia (structures producing and containing spores) in ferns and fungi. A coenosorus (: coenosori) is a compound sorus composed of multiple, fused sori. Etymology This Neo-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 (: indusia), which forms an umbrella-like cover. Life cycle 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, arrang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Aiton
William Aiton (17312 February 1793) was a Scotland, Scottish botanist. Aiton was born near Hamilton, Scotland, Hamilton. Having been regularly trained to the profession of a gardener, he travelled to London in 1754, and became assistant to Philip Miller, then superintendent of the Chelsea Physic Garden. In 1759 he was appointed director of the newly established Royal Botanic Gardens, Kew, botanical garden at Kew, where he remained until his death. He effected many improvements at the gardens, and in 1789 he published ''Hortus Kewensis'', a catalogue of the plants cultivated there. He is buried at nearby St. Anne's Church, Kew. A second and enlarged edition of the ''Hortus'' was brought out in 1810–1813 by his eldest son, William Townsend Aiton. Aiton is commemorated in the Specific epithet (botany), specific epithet ''aitonis''. In 1789, he classified the Sampaguita plant to the ''Jasmine, Jasminium'' genus and also named it as ''Arabian Jasmine'' because it was believed th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
