|
Aculus Tetanothrix
''Aculus tetanothrix'' is a species of mite which causes galls on the leaves of willows (''Salix'' species). It was Species description, first described by Alfred Nalepa in 1889. Description of the gall The gall is a green or reddish, rounded pouch or pustule on the upperside of a leaf, which also protrudes on the lower surface of the leaf. There is a slit-like opening on the underside of the leaf which, when mature, is hairy inside but the hairs do not protrude outside of the gall. Many mites can be seen within the opening. The galls are found on white willow (Salix alba, ''S. alba''), eared willow (Salix aurita, ''S. aurita''), grey willow (Salix cinerea, ''S. cinerea''), Salix eriocephala, ''S. eriocephala'', crack willow (Salix euxina, ''S. fragilis''), Salix integra, ''S. integra, bay willow (Salix pentandra, ''S. pentandra''), purple willow (Salix purpurea, ''S. purpurea''), Sitka willow (Salix sitchensis, ''S. sitchensis''), Salix smithiana, ''S. smithiana'', almond will ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Nalepa
Alfred Nalepa (19 December 1856, in Werschetz – 11 December 1929, in Baden bei Wien) was an Austrian zoologist specializing in the field of acarology. He studied natural sciences at the University of Vienna, and from 1886 was associated with the ''Lehrerbildungsanstalt'' in Linz. In 1892 he returned to Vienna, where he was appointed professor of natural history at the ''Elisabethgymnasium''. He described many species in the field of acarology, and was the taxonomic authority of the gall mite family, Eriophyidae. Principal works * ''Beiträge zur Systematik der Phytopten'', 1889 - Contribution to the systematics of Phytoptidae. * ''Beiträge zur Kenntniss der Phyllocoptiden'', 1894 - Contribution to the knowledge of ''Phyllocoptes ''Phyllocoptes'' is a genus of acari, including the following species: * '' Phyllocoptes abaenus'' Keifer, 1940 * '' Phyllocoptes adalius'' Keifer, 1939 * '' Phyllocoptes alniborealis'' Liro, 1950 * '' Phyllocoptes alniincanae'' Roivainen, 194 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Integra
''Salix integra'' is a species of willow native to north-eastern China, Japan, Korea and the far south-eastern Russia (Primorsky Krai).Flora of China''Salix integra''/ref> It is a deciduous shrub growing to 2–6 m tall with greyish-green bark and reddish to yellowish shoots. The leaves are 2–10 cm long and 1–2 cm wide; they are pale green both above and below, and unusually for a willow, are often arranged in opposite pairs or whorls of three, rather than alternate. The flowers are produced in small catkins 1-2.5 cm long in early spring; they are brownish to reddish in colour. It is dioecious, with male and female catkins on separate plants.Japanese Treeflowers''Salix integra''/ref> It is closely related to the European and western Asian ''Salix purpurea'', and has been treated as a variety of it by some authors, as ''S. purpurea'' var. ''multinervis'' (Franchet & Savatier) Matsumura, or as a subspecies ''S. purpurea'' subsp. ''amplexicaulis'' (Chaubard) C.K.S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animals Described In 1889
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinoderms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arachnids Of North America
Arachnida () is a class of joint-legged invertebrate animals (arthropods), in the subphylum Chelicerata. Arachnida includes, among others, spiders, scorpions, ticks, mites, pseudoscorpions, harvestmen, camel spiders, whip spiders and vinegaroons. Almost all adult arachnids have eight legs, although the front pair of legs in some species has converted to a sensory function, while in other species, different appendages can grow large enough to take on the appearance of extra pairs of legs. The term is derived from the Greek word (''aráchnē'', 'spider'), from the myth of the hubristic human weaver Arachne, who was turned into a spider. Almost all extant arachnids are terrestrial, living mainly on land. However, some inhabit freshwater environments and, with the exception of the pelagic zone, marine environments as well. They comprise over 100,000 named species, of which 47,000 are species of spiders. Morphology Almost all adult arachnids have eight legs, unlike adult ins ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eriophyidae
Eriophyidae is a family of more than 200 genera of mites, which live as plant parasites, commonly causing galls or other damage to the plant tissues and hence known as gall mites. About 3,600 species have been described, but this is probably less than 10% of the actual number existing in this poorly researched family. They are microscopic mites and are yellow to pinkish white to purplish in color. The mites are worm like, and have only two pairs of legs. Their primary method of population spread is by wind. They affect a wide range of plants, and several are major pest species causing substantial economic damage to crops. Some species, however, are used as biological agents to control weeds and invasive plant species. Notable species Notable species in this family include: *'' Abacarus hystrix'', the cereal rust mite *''Abacarus sacchari'', the sugarcane rust mite *''Acalitus essigi'', the redberry mite, which affects blackberries *'' Aceria chondrillae'', the chondrilla gal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aculus Salicisalbae
''Aculus'' is a genus of mites, including the following species: Species *'' Aculus ablopurpurascus'' Huang, 2001 *'' Aculus acanthae'' (Mohanasundaram, 1982) *''Aculus acraspis'' (Nalepa, 1892) *'' Aculus acutangulae'' Mohanasundaram, 1985 *'' Aculus advens'' (Keifer, 1938) *''Aculus aegerinus'' (Nalepa, 1892) *'' Aculus aesculi'' Domes, 2003 *'' Aculus aflatunivagrans'' (Ponomareva, 1978) *''Aculus africanae'' (Meyer & Ueckermann, 1990) *''Aculus albopurpurascus'' Huang, 2001 *''Aculus alfalfae'' (Roivainen, 1950) *''Aculus altus'' (Nalepa, 1909) *''Aculus amandae'' (Keifer, 1969) *''Aculus ambrosiae'' (Keifer, 1943) *''Aculus amygdalina'' (Banks, 1912) *''Aculus anthobius'' (Nalepa, 1892) *''Aculus aphanotrichus'' (Liro, 1943) *''Aculus aphelus'' Smith-Meyer & Ueckermann, 1990 *''Aculus arbosti'' (Cotte, 1924) *''Aculus arceosae'' (Briones & McDaniel, 1976) *''Aculus argenteae'' (Farkas, 1963) *''Aculus arzakanensis'' (Bagdasarian, 1970) *''Aculus asclepiellus'' Keifer, 1965 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Viminalis
''Salix viminalis'', the basket willow, common osier or osier, is a species of willow native to Europe, Western Asia, and the Himalayas.Meikle, R. D. (1984). ''Willows and Poplars of Great Britain and Ireland''. BSBI Handbook No. 4. .Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins .Perttu, K. L. and Kowalik, P. J. (1997). ''Salix vegetation filters for purification of waters and soils''. Biomass and Bioenergy, Volume 12, Issue 1, 1997, Pages 9-19. Elsevier Science Ltd. Description ''Salix viminalis'' is a multistemmed shrub growing to between (rarely to ) tall. It has long, erect, straight branches with greenish-grey bark. The leaves long and slender, 10–25 cm long but only 0.5–2 cm broad; they are dark green above, with a silky grey-haired underside. The flowers are catkins, produced in early spring before the leaves; they are dioecious, with male and female catkins on separate plants. The male catkins are yellow and oval-shaped; the female catkin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Triandra
''Salix triandra'', with the common names almond willow, almond-leaved willow or black maul willow, is a species of willow native to Europe and Western and Central Asia. It is found from south-eastern England east to Lake Baikal, and south to Spain and the Mediterranean east to the Caucasus, and the Alborz Mountains. It usually grows in riparian habitats, on river and stream banks, and in wetlands.Meikle, R. D. (1984). ''Willows and Poplars of Great Britain and Ireland''. BSBI Handbook No. 4. .Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins .Den Virtuella Floran''Salix triandra'' (in Swedish; with maps)/ref> Description ''Salix triandra'' is a deciduous shrub or small tree growing to tall, usually multistemmed, with an irregular, often leaning crown. Young bark is smooth grey-brown, becoming scaly on older stems with large scales exfoliating (like a plane tree) to leave orange-brown patches. The leaves are broad, lanceolate, 4–11 cm long and 1–3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Smithiana
Willows, also called sallows and osiers, from the genus ''Salix'', comprise around 400 speciesMabberley, D.J. 1997. The Plant Book, Cambridge University Press #2: Cambridge. of typically deciduous trees and shrubs, found primarily on moist soils in cold and temperate regions. Most species are known as willow, but some narrow-leaved shrub species are called osier, and some broader-leaved species are referred to as sallow (from Old English ''sealh'', related to the Latin word ''salix'', willow). Some willows (particularly arctic and alpine species) are low-growing or creeping shrubs; for example, the dwarf willow (''Salix herbacea'') rarely exceeds in height, though it spreads widely across the ground. Description Willows all have abundant watery bark sap, which is heavily charged with salicylic acid, soft, usually pliant, tough wood, slender branches, and large, fibrous, often stoloniferous roots. The roots are remarkable for their toughness, size, and tenacity t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Sitchensis
''Salix sitchensis'' is a species of willow known by the common name Sitka willow. It is native to northwestern North America from Alaska to northern California to Montana. It is a common to abundant plant in many types of coastal and inland wetland habitat, such as marshes, riverbanks, swamps, coastal sand dunes, and mountain springs. Description ''Salix sitchensis'' is variable in appearance, taking the form of a bushy shrub or an erect tree up to tall. The leaves are up to 12 cm long, lance-shaped or oval with pointed tips, smooth-edged or toothed, often with the edges rolled under. The undersides are hairy to woolly in texture, and the upper surfaces are mostly hairless and dark green. The inflorescence is a catkin A catkin or ament is a slim, cylindrical flower cluster (a spike), with inconspicuous or no petals, usually wind- pollinated ( anemophilous) but sometimes insect-pollinated (as in '' Salix''). They contain many, usually unisexual flowers, arra ... o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix Purpurea
''Salix purpurea'', the purple willow purpleosier willow or purple osier, is a species of willow native to most of Europe and western Asia north to the British Isles, Poland, and the Baltic States.Flora Europaea''Salix purpurea''/ref>Meikle, R. D. (1984). ''Willows and Poplars of Great Britain and Ireland''. BSBI Handbook No. 4. .Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins . It is a deciduous shrub growing to 1–3 m (rarely to 5 m) tall, with purple-brown to yellow-brown shoots, turning pale grey on old stems. The leaves are 2–8 cm (rarely to 12 cm) long and 0.3–1 cm (rarely 2 cm) wide; they are dark green above, glaucous green below, and unusually for a willow, are often arranged in opposite pairs rather than alternate. The flowers are small catkins 1.5-4.5 cm long, produced in early spring; they are often purple or red in colour, whence the name of the species (other willows mostly have whitish, yellow or green catkins). It is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
