Helianthemum Asperum
''Helianthemum'' , known as rock rose, sunrose, rushrose, or frostweed,''Helianthemum''.
Integrated Taxonomic Information System (ITIS). is a of about 110''Helianthemum''.
Flora of China. species of s in the

Helianthemum Nummularium
''Helianthemum nummularium'' (known as common rock-rose) is a species of rock-rose (Cistaceae), native to most of Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia .... Description It is an evergreen trailing plant with loose terminal clusters of bright yellow, saucer-shaped flowers. In the flower centre is a tight cluster of orange stamens, which are sensitive to the touch, and spread outwards to reveal the tall stigma in the middle. The plant is common on chalk downs, and occasional in other grasslands, always on dry, base-rich soil. The wild species has yellow flowers, but garden varieties range from white through yellow to deep red. Though the individual blooms are short-lived, the plant produces a mass of flowers through the summer. It needs a dry, sunny place, like a ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Mycorrhiza
  A mycorrhiza (from Greek μύκης ', "fungus", and ῥίζα ', "root"; pl. mycorrhizae, mycorrhiza or mycorrhizas) is a symbiotic association between a fungus and a plant. The term mycorrhiza refers to the role of the fungus in the plant's rhizosphere, its root system. Mycorrhizae play important roles in plant nutrition, soil biology, and soil chemistry. In a mycorrhizal association, the fungus colonizes the host plant's root tissues, either intracellularly as in arbuscular mycorrhizal fungi (AMF or AM), or extracellularly as in ectomycorrhizal fungi. The association is sometimes mutualistic. In particular species or in particular circumstances, mycorrhizae may have a parasitic association with host plants. Definition A mycorrhiza is a symbiotic association between a green plant and a fungus. The plant makes organic molecules such as sugars by photosynthesis and supplies them to the fungus, and the fungus supplies to the plant water and mineral nutrients, such as phosp ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Coleophora Eupreta
''Coleophora eupreta'' is a moth of the family Coleophoridae. It is found in France, Spain, Portugal, Italy and North Macedonia. The larvae feed on ''Helianthemum apenninum'', ''Helianthemum canum'', ''Helianthemum guttatum'', ''Helianthemum lavandulifolium'', ''Helianthemum nummularium'' and ''Helianthemum sessiliflorum ''Helianthemum'' , known as rock rose, sunrose, rushrose, or frostweed,' ...

Bucculatrix Regaella
''Bucculatrix regaella'' is a moth in the family Bucculatricidae. It is found in Algeria. The species was described in 1907 by Pierre Chrétien. The larvae feed on ''Helianthemum sessiliflorum ''Helianthemum'' , known as rock rose, sunrose, rushrose, or frostweed,' ...

Bucculatrix Helianthemi
Bucculatricidae or (Bucculatrigidae) is a family of moths. This small family has representatives in all parts of the world. Some authors place the group as a subfamily of the family Lyonetiidae. Adults of this family are easily overlooked, being very small with narrow wings wrapped around the body at rest. When small, the larvae are leaf-miners, forming distinctive brown blotches on leaves. When larger, they usually feed on the leaves externally. Many species have specific host plants. The pupal cases have distinctive longitudinal ridges, leading to members of the family commonly being called ribbed cocoon makers. Some authors recognize just a single large genus, ''Bucculatrix'', although two Australian genera, '' Cryphioxena'' and the scribbly gum moths (''Ogmograptis'' spp.) are now sometimes placed in this family rather than in Elachistidae. Species *''Bucculatrix abdita'' *'' Bucculatrix abrepta'' *''Bucculatrix absinthii'' *'' Bucculatrix acrogramma'' *''Bucculatrix acuta' ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Leaf Miners
A leaf miner is any one of numerous species of insects in which the larval stage lives in, and eats, the leaf tissue of plants. The vast majority of leaf-mining insects are moths (Lepidoptera), sawflies (Symphyta, the mother clade of wasps), and flies (Diptera). Some beetles also exhibit this behavior. Like woodboring beetles, leaf miners are protected from many predators and plant defenses by feeding within the tissues of the leaves, selectively eating only the layers that have the least amount of cellulose. When attacking ''Quercus robur'' (English oak), they also selectively feed on tissues containing lower levels of tannin, a deterrent chemical produced in great abundance by the tree. The pattern of the feeding tunnel and the layer of the leaf being mined is often diagnostic of the insect responsible, sometimes even to species level. The mine often contains frass, or droppings, and the pattern of frass deposition, mine shape, and host plant identity are useful to determi ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Silver-studded Blue
The silver-studded blue (''Plebejus argus'') is a butterfly in the family Lycaenidae. It has bright blue wings rimmed in black with white edges and silver spots on its hindwings, lending it the name of the silver-studded blue. ''P. argus'' can be found across Europe and east across the Palearctic, but is most often studied in the United Kingdom in which the species has experienced a severe decline in population due to habitat loss and fragmentation. ''P. argus'' engages in mutualism with ants that contribute to the butterflies' reproductive fitness by providing protection from predation and parasitism from the point of egg laying to their emergence as adults. ''P. argus'' adults emerge in the end of June and beginning of July and engage in flight into the beginning of August. The butterfly is adaptable to different habitats and is found in heathland, mossland, and limestone grassland. Tending towards a sedentary lifestyle and typically flying less than a day, ''P. argus'' maint ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Large Grizzled Skipper
The Large Grizzled skipper (''Pyrgus alveus'') is a species of skipper butterfly (family Hesperiidae). Description This is a rather variable species with a wingspan of 22–32 mm (not always particularly "large") with several subspecies having been described. As with most ''Pyrgus'' species it has dark brown wings with pale chequered margins and is rather difficult to identify specifically in the field but good views reveal clear, well-spaced white spotting on the forewing and much fainter markings on the hindwings. The species complex of ''Pyrgus alveus'' agg. has not yet been adequately researched from a taxonomic point of view. In particular, the separation and evaluation of the taxa ''Pyrgus alveus, Pyrgus trebevicensis'' and ''Pyrgus accretus'' is considered to be extremely problematic. Therefore, in many cases, the reports can neither be clearly assigned nor is a taxonomic separation based on biological differences within the complex confirmed. Many authors consequently re ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Lepidoptera
Lepidoptera ( ) is an order (biology), order of insects that includes butterfly, butterflies and moths (both are called lepidopterans). About 180,000 species of the Lepidoptera are described, in 126 Family (biology), families and 46 Taxonomic rank, superfamilies, 10 percent of the total described species of living organisms. It is one of the most widespread and widely recognizable insect orders in the world. The Lepidoptera show many variations of the basic body structure that have evolved to gain advantages in lifestyle and distribution. Recent estimates suggest the order may have more species than earlier thought, and is among the four most wikt:speciose, speciose orders, along with the Hymenoptera, fly, Diptera, and beetle, Coleoptera. Lepidopteran species are characterized by more than three derived features. The most apparent is the presence of scale (anatomy), scales that cover the torso, bodies, wings, and a proboscis. The scales are modified, flattened "hairs", and give ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Larva
A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The larva's appearance is generally very different from the adult form (''e.g.'' caterpillars and butterflies) including different unique structures and organs that do not occur in the adult form. Their diet may also be considerably different. Larvae are frequently adapted to different environments than adults. For example, some larvae such as tadpoles live almost exclusively in aquatic environments, but can live outside water as adult frogs. By living in a distinct environment, larvae may be given shelter from predators and reduce competition for resources with the adult population. Animals in the larval stage will consume food to fuel their transition into the adult form. In some organisms like polychaetes and barnacles, adults are immobil ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Cenococcum Geophilum
''Cenococcum geophilum'' Fr., synonym ''Cenococcum graniforme'' (Sow.) Ferd. and Winge, is an Ascomycete fungal species and is the only member in the genus ''Cenococcum''. It is one of the most common ectomycorrhizal fungal species encountered in forest ecosystems. The geographic distribution of the species is notably cosmopolitan; it is found in ecosystems with a wide range of environmental conditions, and in many cases in high relative frequency. Because of its wide distribution and abundance in forest soils, it is one of the most well-studied ectomycorrhizal fungal species. While the species has long been known to be sterile and not produce asexual or sexual spores, cryptic sexual stages may exist.Spatafora, J. W., Owensby, C. A., Douhan, G. W., Boehm, E. W., & Schoch, C. L. (2012). Phylogenetic placement of the ectomycorrhizal genus Cenococcum in Gloniaceae (Dothideomycetes). Mycologia, 104(3), 758-765. The hyphae produced by ''C. geophilum'' are characterized by their thick ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Desertification
Desertification is a type of land degradation in drylands in which biological productivity is lost due to natural processes or induced by human activities whereby fertile areas become increasingly arid. It is the spread of arid areas caused by a variety of factors, such as climate change and overexploitation of soil as a result of human activity. Throughout geological history, the development of deserts has occurred naturally. In recent times, the potential influences of human activity, improper land management, deforestation and climate change on desertification is the subject of many scientific investigations. Definitions of words As recently as 2005, considerable controversy existed over the proper definition of the term "desertification." Helmut Geist (2005) identified more than 100 formal definitions. The most widely acceptedGeist (2005)p. 2/ref> of these was that of the Princeton University Dictionary which defined it as "the process of fertile land ''transforming into ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]