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Arabis Scabra
''Arabis scabra'', the Bristol rockcress, is a perennial flowering plant in the family Brassicaceae, native to the Bristol region, including the Avon Gorge. It grows in shallow soils, scree and rocky ledges. It has been introduced to other locations in England, with populations usually being short-lived, with the exception of Combwich, where it can still be found. See also * List of Arabis species, List of ''Arabis'' species References Arabis, scabra Flora of England Plants described in 1785 Taxa named by Carlo Allioni {{Brassicales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carlo Allioni
Carlo Allioni (23 September 1728 in Turin – 30 July 1804 in Turin) was an Italian physician and botanist, professor of botany at the University of Turin. His most important work was ''Flora Pedemontana, sive enumeratio methodica stirpium indigenarum Pedemontii'' 1755, a study of the plant world in Piedmont, in which he listed 2813 species of plants, of which 237 were previously unknown. In 1766, he published the ''Manipulus Insectorum Tauriniensium''. Career In April, 1758 he was elected a Fellow of the Royal Society. He was appointed extraordinary professor of botany at the University of Turin in 1760 and was also the director of the Turin Botanical Garden. The journal ''Allionia: bollettino dell' istituto ed orto botanico dell' università di Torino'' is named after him. First Pehr Löfling and then Carl Linnaeus, Linnaeus named the New World herb genus ''Allionia'' (Nyctaginaceae) after Allioni. Per Axel Rydberg named the genus ''Allioniella'' (now a Synonym (taxonom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flowering Plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. They include all forbs (flowering plants without a woody stem), grasses and grass-like plants, a vast majority of broad-leaved trees, shrubs and vines, and most aquatic plants. The term "angiosperm" is derived from the Greek words ἀγγεῖον / ('container, vessel') and σπέρμα / ('seed'), meaning that the seeds are enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Angiosperms are distinguished from the other seed-producing plants, the gymnosperms, by having flowers, xylem consisting of vessel elements instead of tracheids, endosperm within their seeds, and fruits that completely envelop the seeds. The ancestors of flowering plants diverged from the common ance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brassicaceae
Brassicaceae () or (the older) Cruciferae () is a medium-sized and economically important family of flowering plants commonly known as the mustards, the crucifers, or the cabbage family. Most are herbaceous plants, while some are shrubs. The leaves are simple (although are sometimes deeply incised), lack stipules, and appear alternately on stems or in rosettes. The inflorescences are terminal and lack bracts. The flowers have four free sepals, four free alternating petals, two shorter free stamens and four longer free stamens. The fruit has seeds in rows, divided by a thin wall (or septum). The family contains 372 genera and 4,060 accepted species. The largest genera are '' Draba'' (440 species), '' Erysimum'' (261 species), '' Lepidium'' (234 species), '' Cardamine'' (233 species), and '' Alyssum'' (207 species). The family contains the cruciferous vegetables, including species such as '' Brassica oleracea'' (cultivated as cabbage, kale, cauliflower, broccoli and co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avon Gorge
The Avon Gorge () is a 1.5-mile (2.5-kilometre) long gorge on the River Avon in Bristol, England. The gorge runs south to north through a limestone ridge west of Bristol city centre, and about 3 miles (5 km) from the mouth of the river at Avonmouth. The gorge forms the boundary between the unitary authorities of North Somerset and Bristol, with the boundary running along the south bank. As Bristol was an important port, the gorge formed a defensive gateway to the city. On the east of the gorge is the Bristol suburb of Clifton, and The Downs, a large public park. To the west of the gorge is Leigh Woods, the name of both a village and the National Trust forest it is situated in. There are three Iron Age hill forts overlooking the gorge, as well as an observatory. The Clifton Suspension Bridge, an icon of Bristol, crosses the gorge. Geology and formation The gorge cuts through a ridge mainly of limestone, with some sandstone. This particular ridge runs from C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scree
Scree is a collection of broken rock fragments at the base of a cliff or other steep rocky mass that has accumulated through periodic rockfall. Landforms associated with these materials are often called talus deposits. Talus deposits typically have a concave upwards form, where the maximum inclination corresponds to the angle of repose of the mean debris particle size. The exact definition of scree in the primary literature is somewhat relaxed, and it often overlaps with both ''talus'' and ''colluvium''. The term ''scree'' comes from the Old Norse term for landslide, ''skriða'', while the term ''talus'' is a French word meaning a slope or embankment. In high-altitude arctic and subarctic regions, scree slopes and talus deposits are typically adjacent to hills and river valleys. These steep slopes usually originate from late-Pleistocene periglacial processes. Notable scree sites in Eastern North America include the Ice Caves at White Rocks National Recreation Area in southern Ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combwich
Combwich ( ) is a village in the parish of Otterhampton within the Sedgemoor district of Somerset, between Bridgwater and the Steart Peninsula. The village lies on Combwich Reach as the River Parrett flows to the sea and was the site of an ancient ferry crossing. In the Domesday book it was known as Comiz which means 'The settlement at the short, broad, open valley' (from Old English cumb). This is clearly a reference to the valley of exactly this topographical description, immediately to the south of the village, and through which the South Moor Brook flows westwards into the River Parrett. One derivation of -wich is thought to be from Latin 'vicus', and there are archaeological indications that there was a settlement at Combwich in the Romano-British period, based around a ferry across the Parrett at this point. The exact meaning of the second element here is uncertain at present, as Old English ''-wic'' can have a variety of meanings attributed to it. It served as a port ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Arabis Species
List of plant species in the genus '' Arabis''. The genus contains over 100 accepted species, spread across North America, Europe, North Africa and Asia. Many species previously included in ''Arabis'' have since been moved to other genera such as '' Boechera''. Key Species Hybrid species See also *{{C, Lists of plant species External links ''Arabis'' genus at the Global Biodiversity Information Facility Arabis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arabis
''Arabis'' ,''Sunset Western Garden Book,'' 1995:606–607 or rockcress, is a genus of flowering plants, within the family Brassicaceae. Description The species are herbaceous, annual or perennial plants, growing to 10–80 cm tall, usually densely hairy, with simple entire to lobed leaves 1–6 cm long, and small white four-petaled flowers. The fruit is a long, slender capsule containing 10-20 or more seeds. Natural habitat for ''Arabis'' species is rocky mountain/cliff sides or dry sites. Cultivation of ''Arabis'' is best suited for rock gardens or container gardens. This genus is pollinated by members of Apieae and Lepidoptera. Taxonomy Though traditionally recognized as a large genus with many Old World and New World members, more recent evaluations of the relationships among these species using genetic data suggest there are two major groups within the old genus ''Arabis''. These two groups are not each other's closest relatives, so have been split into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of England
Flora (: floras or florae) is all the plant life present in a particular region or time, generally the naturally occurring ( indigenous) native plants. The corresponding term for animals is ''fauna'', and for fungi, it is ''funga''. Sometimes bacteria and fungi are also referred to as flora as in the terms ''gut flora'' or ''skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants Described In 1785
Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyta, and consists of the green algae and Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and their allies, hornworts, liverworts, and mosses. Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic or mycotrophic and have lost the abil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
