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Whittlesford - Thriplow Hummocky Fields
Whittlesford - Thriplow Hummocky Fields is a biological Site of Special Scientific Interest between Whittlesford and Thriplow in Cambridgeshire. This site has two unusual species, the nationally rare grass-poly, which is only found in south Cambridgeshire on the British mainland, and the nationally uncommon fairy shrimp ''Chirocephalus diaphanus''. They are found in shallow hollows in arable fields, which are the result of ice lenses melting at the end of the last ice age. There are also uncommon liverworts. The site This site consists of two fields, one at Whittlesford and one at Thriplow with a total area of . This region was affected by the most recent ice age, and it left behind depressions which resulted from the melting of ice lenses, where the freezing of water-saturated soil causes deformation and the upward thrust of the ground surface. These depressions provide suitable habitat for grass-poly (''Lythrum hyssopifolia''), a very rare plant in Great Britain. Other pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Site Of Special Scientific Interest
A Site of Special Scientific Interest (SSSI) in Great Britain or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland is a conservation designation denoting a protected area in the United Kingdom and Isle of Man. SSSI/ASSIs are the basic building block of site-based nature conservation legislation and most other legal nature/geological conservation designations in the United Kingdom are based upon them, including national nature reserves, Ramsar sites, Special Protection Areas, and Special Areas of Conservation. The acronym "SSSI" is often pronounced "triple-S I". Selection and conservation Sites notified for their biological interest are known as Biological SSSIs (or ASSIs), and those notified for geological or physiographic interest are Geological SSSIs (or ASSIs). Sites may be divided into management units, with some areas including units that are noted for both biological and geological interest. Biological Biological SSSI/ASSIs may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plantago Major
''Plantago major'', the broadleaf plantain, white man's footprint, waybread, or greater plantain, is a species of flowering plant in the plantain family Plantaginaceae. The plant is native to Eurasia. The young, tender leaves can be eaten raw, and the older, stringier leaves can be boiled in stews and eaten. Description ''Plantago major'' is a herbaceous, perennial plant with a rosette of leaves in diameter.Blamey, M. & Grey-Wilson, C. (1989). ''Flora of Britain and Northern Europe''. Each leaf is oval-shaped, long and broad, rarely up to long and broad, with an acute apex, a smooth margin, and a distinct petiole almost as long as the leaf itself. There are five to nine conspicuous veins over the length of the leaf. The flowers are small, greenish-brown with purple stamens, produced in a dense spike long on top of a stem tall and rarely to tall. Plantain is wind-pollinated and propagates primarily by seeds, which are held on the long, narrow spikes which rise well ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wildlife And Countryside Act 1981
The Wildlife and Countryside Act 1981 is an Act of Parliament in the United Kingdom implemented to comply with European Council Directive 79/409/EEC on the conservation of wild birds. In short, the act gives protection to native species (especially those at threat), controls the release of non-native species, enhances the protection of Sites of Special Scientific Interest and builds upon the rights of way rules in the National Parks and Access to the Countryside Act 1949. The Act is split into 4 parts covering 74 sections; it also includes 17 schedules. The legislation has strength; few amendments have been made to it, and it has acted as a foundation for later legislation to build upon. The compulsory 5 year review of schedules 5 and 8 make it dynamic in terms of the species which it protects. History Wild Birds Protection Act 1902 The Wild Birds Protection Act 1902 ( 2 Edw 7 c. 6) was an Act of Parliament of the Parliament of the United Kingdom, given the royal assent on 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustacean
Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group can be treated as a subphylum under the clade Mandibulata. It is now well accepted that the hexapods emerged deep in the Crustacean group, with the completed group referred to as Pancrustacea. Some crustaceans (Remipedia, Cephalocarida, Branchiopoda) are more closely related to insects and the other hexapods than they are to certain other crustaceans. The 67,000 described species range in size from '' Stygotantulus stocki'' at , to the Japanese spider crab with a leg span of up to and a mass of . Like other arthropods, crustaceans have an exoskeleton, which they moult to grow. They are distinguished from other groups of arthropods, such as insects, myriapods and chelicerates, by the possession of biramous (two-parted) limbs, and by th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riccia Subbifurca
''Riccia'' is a genus of liverworts in the order Marchantiales. These plants are small and thalloid, that is not differentiated into root, stem and leaf. Depending on species, the thallus may be strap-shaped and about 0.5 to 4 mm wide with dichotomous branches or may form rosettes or hemirosettes up to 3 cm in diameter, that may be gregarious and form intricate mats. The thallus is dorsiventrally differentiated. Its upper (dorsal) surface is green and chlorophyll-bearing, with a mid-dorsal longitudinal sulcus (furrow or groove). Air pores occasionally break through the dorsal surface, giving the thallus a dimpled appearance. In exceptional members such as ''Riccia caroliniana'' of Northern Australia and ''Riccia sahyadrica'' of Western Ghats, the photosynthetic region is confined to the lower half of the thallus. The lower (ventral) surface has a mid-ventral ridge bearing multicellular scales that originate as a single row but normally separate into two rows as t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riccia Warnstorfii
''Riccia'' is a genus of liverworts in the order Marchantiales. These plants are small and thalloid, that is not differentiated into root, stem and leaf. Depending on species, the thallus may be strap-shaped and about 0.5 to 4 mm wide with dichotomous branches or may form rosettes or hemirosettes up to 3 cm in diameter, that may be gregarious and form intricate mats. The thallus is dorsiventrally differentiated. Its upper (dorsal) surface is green and chlorophyll-bearing, with a mid-dorsal longitudinal sulcus (furrow or groove). Air pores occasionally break through the dorsal surface, giving the thallus a dimpled appearance. In exceptional members such as ''Riccia caroliniana'' of Northern Australia and ''Riccia sahyadrica'' of Western Ghats, the photosynthetic region is confined to the lower half of the thallus. The lower (ventral) surface has a mid-ventral ridge bearing multicellular scales that originate as a single row but normally separate into two rows ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riccia Cavernosa
''Riccia'' is a genus of liverworts in the order Marchantiales. These plants are small and thalloid, that is not differentiated into root, stem and leaf. Depending on species, the thallus may be strap-shaped and about 0.5 to 4 mm wide with dichotomous branches or may form rosettes or hemirosettes up to 3 cm in diameter, that may be gregarious and form intricate mats. The thallus is dorsiventrally differentiated. Its upper (dorsal) surface is green and chlorophyll-bearing, with a mid-dorsal longitudinal sulcus (furrow or groove). Air pores occasionally break through the dorsal surface, giving the thallus a dimpled appearance. In exceptional members such as ''Riccia caroliniana'' of Northern Australia and ''Riccia sahyadrica'' of Western Ghats, the photosynthetic region is confined to the lower half of the thallus. The lower (ventral) surface has a mid-ventral ridge bearing multicellular scales that originate as a single row but normally separate into two rows as t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persicaria Mitis
''Persicaria mitis'' (Schrank) Assenov is a species of flowering plant in the family Polygonaceae, native to Europe. (''Persicaria mitis'' Delarbre is a different species, being a rejected synonym of '' Persicaria maculosa''.) Taxonomy The species was first described by Franz von Paula Schrank in 1789 as ''Polygonum mite''. In 1966, Vulevi Ivan Assenov transferred it to '' Persicaria'' under the name "''Persicaria mitis''". However, this name had already been used in 1800 by Antoine Delarbre as a replacement name for Carl Linnaeus's ''Polygonum persicaria'' when this species was transferred to ''Persicaria'' (the International Code of Nomenclature for algae, fungi, and plants The ''International Code of Nomenclature for algae, fungi, and plants'' (ICN) is the set of rules and recommendations dealing with the formal botanical names that are given to plants, fungi and a few other groups of organisms, all those "trad ... does not allow the same genus name and specific epith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persicaria Maculosa
''Persicaria maculosa'' (syn. ''Polygonum persicaria'') is an annual plant in the buckwheat family, Polygonaceae. Common names include lady's thumb, spotted lady's thumb, Jesusplant, and redshank. It is widespread across Eurasia from Iceland south to Portugal and east to Japan. It is also present as an introduced and invasive species in North America, where it was first noted in the Great Lakes region in 1843 and has now spread through most of the continent. Description ''Persicaria maculosa'' is an annual herb up to tall, with an erect, rather floppy stem with swollen joints. The leaves are alternate and almost stalkless. The leaf blades often have a brown or black spot in the centre and are narrowly ovate and have entire margins. Each leaf base has stipules which are fused into a stem-enclosing sheath that is loose and fringed with long hairs at the upper end. The inflorescence is a dense spike. The perianth of each tiny pink flower consists of four or five lobes, fused ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polygonum Aviculare
''Polygonum aviculare'' or common knotgrass is a plant related to buckwheat and dock. It is also called prostrate knotweed, birdweed, pigweed and lowgrass. It is an annual found in fields and wasteland, with white flowers from June to October. It is widespread across many countries in temperate regions, apparently native to Eurasia, naturalized in temperate parts of the Southern Hemisphere. Description Common knotgrass is an annual herb with a semi-erect stem that may grow from high. The leaves are hairless and short-stalked. They are longish-elliptical with short stalks and rounded bases; the upper ones are few and are linear and stalkless. The stipules are fused into a stem-enclosing, translucent sheath known as an ochrea that is membranous and silvery. The flowers are regular, green with white or pink margins. Each has five perianth segments, overlapping at the base, five to eight stamens and three fused carpels. The fruit is a dark brown, three-edged nut. The seeds need l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juncus Bufonius
''Juncus bufonius'', known commonly as toad rush, is a widespread flowering plant species complex in the rush family Juncaceae. Distribution Its native range is circumpolar throughout tropical, subtropical, subarctic, and temperate climate areas of the Northern Hemisphere and Southern Hemisphere. It is also widely distributed as an introduced species in suitable habitats worldwide. It grows in moist and muddy places, often in wetlands and riparian areas. In habitats where it is not native and has naturalized it may be considered a weed. The relationship of North America plants to the Eurasian ''Juncus ranarius'' is weakly delineated. Description ''Juncus bufonius'' is an annual monocot that is quite variable in appearance. It is generally a green clumping grasslike rush, with many thin stems wrapped with few threadlike leaves. The flowers are borne in inflorescences and also in the joint where the inflorescence branches off of the stem. It is a grassy flower folded withi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whittlesford
Whittlesford is a village in Cambridgeshire, England, and also the name of an old hundred. The village is situated on the Granta branch of the River Cam, seven miles south of Cambridge. Whittlesford Parkway railway station serves the village. Listed as ''Witelesforde'' in the Domesday Book, the name Whittlesford means "ford of a man called Wittel", indicating the importance of a local ford across the river in the village. History The parish lies to the west of the River Cam, just to the north of the Icknield Way, an ancient thoroughfare which forms the historic parish boundary on the south. The parish contains 1,976 acres, and the area was occupied in Roman times. A hospital, then a form of almshouse, was founded in the village by Sir William Colville before the time of Edward I, and there are some remains of the original building still standing. Whittlesford was at one stage a market town. Roger Ascham, the tutor of Elizabeth I, lived in Whittlesford, and a road in the villag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
