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Annona Aurantiaca
''Annona aurantiaca'' is a species of plant in the family Annonaceae. It is native to Brazil. João Barbosa Rodrigues, the Brazilian botanist who first formally described the species, named it after its orange colored ( in Latin) petals. Description It is a woody perennial bush-like tree 1–5 meters in height. Its stems are erect and covered in small hairs called trichomes. Its oblong, leathery, blueish-green leaves lack distinct petioles and are blunt or notched at their tips. The leaves are 3-15 long by 2-7 centimeters wide. Its flowers are solitary on 3 centimeter long peduncles. The outer petals of the flowers are orange. Its berry-fruit are golden yellow to orange with white flesh and black seeds. It has a medium to dark mauve fruit coat color with an uneven, rough outer surface. The simple green leaves are attached to the petiole. The single leaf has an oval shape, smooth margin and rounded blade tip. The leaf phyllotaxy is alternately attached along the stems of the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
João Barbosa Rodrigues
João Barbosa Rodrigues (June 22, 1842 – March 6, 1909) was considered one of Brazil's greatest botanists, known especially for his work on orchids and palms. For nearly two decades he was director of the Botanic Garden of Rio de Janeiro. Something of a polymath, he was a prolific botanical artist who also made contributions to his country's ethnography, geography, linguistics, zoology, and literature. Early life and education Rodrigues was born on June 22, 1842, in São Gonçalo do Sapucaí, Brazil, and was initially raised in Campanha, in the state of Minas Gerais, before the family returned to Rio in 1858. His father was a Portuguese merchant, and his mother was a Brazilian of Indian descent. He had several siblings: brothers João Baptista and Arthur and sisters Maria and Olympia. He showed early ability as a writer and he was always interested in natural science, particularly in collecting insects and plants. However, he went to the Central School of Engineering in Rio de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclocephala
''Cyclocephala'' is a genus of scarab beetles from the subfamily Dynastinae (Coleoptera, Scarabaeidae). Beetles of this genus occur from southeastern Canada to Argentina and the West Indies. Adults of this genus are nocturnal or crepuscular, and are usually attracted to lights. Selected species This is a large genus and new species continue to be added. *'' Cyclocephala almitana'' *'' Cyclocephala amazona'' *'' Cyclocephala amblyopsis'' *'' Cyclocephala atripes'' *'' Cyclocephala atripes'' *'' Cyclocephala barroensis'' *''Cyclocephala brittoni'' *''Cyclocephala borealis'' - Northern masked chafer *'' Cyclocephala carbonaria'' *'' Cyclocephala cartwrighti'' *''Cyclocephala castanea'' *''Cyclocephala castaniella'' *''Cyclocephala colasi'' *''Cyclocephala complanata'' *''Cyclocephala concolor'' *''Cyclocephala confusa'' *''Cyclocephala conspicua'' *''Cyclocephala discicollis'' *''Cyclocephala discolor'' *''Cyclocephala elegans'' *'' Cyclocephala epistomalis'' *'' Cyclocepha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants Described In 1898
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 los ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annona
''Annona'' (from Taíno ''annon'') is a genus of flowering plants in the pawpaw/sugar apple family, Annonaceae. It is the second largest genus in the family after ''Guatteria'', containing approximately 166Species of Annona on The Plant List. Retrieved 2013-05-28. species of mostly and Afrotropical s and shrubs. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overwintering
Overwintering is the process by which some organisms pass through or wait out the winter season, or pass through that period of the year when "winter" conditions (cold or sub-zero temperatures, ice, snow, limited food supplies) make normal activity or even survival difficult or near impossible. In some cases "winter" is characterized not necessarily by cold but by dry conditions; passing through such periods could likewise be called overwintering. Hibernation and migration are the two major ways in which overwintering is accomplished. Animals may also go into a state of reduced physiological activity known as torpor. Overwintering occurs in several classes of lifeform. Insects In entomology, overwintering is how an insect passes the winter season. Many insects overwinter as adults, pupae, or eggs. This can be done inside buildings, under tree bark, or beneath fallen leaves or other plant matter on the ground, among other places. All such overwintering sites shield the insect fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetranychus Urticae
''Tetranychus urticae'' (common names include red spider mite and two-spotted spider mite) is a species of plant-feeding mite generally considered to be a pest. It is the most widely known member of the family Tetranychidae or spider mites. Its genome was fully sequenced in 2011, and was the first genome sequence from any chelicerate. Distribution ''T. urticae'' was originally native only to Eurasia, but has acquired a cosmopolitan distribution. Description ''T. urticae'' is extremely small, barely visible with the naked eye as reddish or greenish spots on leaves and stems; the adult females measure about long. The red spider mite, which can be seen in greenhouses and tropical and temperate zones, spins a fine web on and under leaves. Ecology This spider mite is extremely polyphagous; it can feed on hundreds of plants, including most vegetables and food crops – such as peppers, tomatoes, potatoes, pepinos, beans, maize, and strawberries, and ornamental plants such a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perlite
Perlite is an amorphous volcanic glass that has a relatively high water content, typically formed by the hydration of obsidian. It occurs naturally and has the unusual property of greatly expanding when heated sufficiently. It is an industrial mineral, suitable "as ceramic flux to lower the sintering temperature", and a commercial product useful for its low density after processing. Properties Perlite softens when it reaches temperatures of . Water trapped in the structure of the material vaporises and escapes, and this causes the expansion of the material to 7–16 times its original volume. The expanded material is a brilliant white, due to the reflectivity of the trapped bubbles. Unexpanded ("raw") perlite has a bulk density around 1100 kg/m3 (1.1 g/cm3), while typical expanded perlite has a bulk density of about 30–150 kg/m3 (0.03–0.150 g/cm3). Typical analysis *70–75% silicon dioxide: SiO2 *12–15% aluminium oxide: Al2O3 *3–4% sodium oxide: Na2O *3–5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cutting (plant)
A plant cutting is a piece of a plant that is used in horticulture for vegetative (asexual) propagation. A piece of the stem or root of the source plant is placed in a suitable medium such as moist soil. If the conditions are suitable, the plant piece will begin to grow as a new plant independent of the parent, a process known as striking. A stem cutting produces new roots, and a root cutting produces new stems. Some plants can be grown from leaf pieces, called leaf cuttings, which produce both stems and roots. The scions used in grafting are also called cuttings. Propagating plants from cuttings is an ancient form of cloning. There are several advantages of cuttings, mainly that the produced offspring are practically clones of their parent plants. If a plant has favorable traits, it can continue to pass down its advantageous genetic information to its offspring. This is especially economically advantageous as it allows commercial growers to clone a certain plant to ensure consis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sowing
Sowing is the process of planting seeds. An area or object that has had seeds planted in it will be described as a sowed or sown area. Plants which are usually sown Among the major field crops, oats, wheat, and rye are sown, grasses and legumes are seeded and maize and soybeans are planted. In planting, wider rows (generally 75 cm (30 in) or more) are used, and the intent is to have precise; even spacing between individual seeds in the row, various mechanisms have been devised to count out individual seeds at exact intervals. Depth of sowing In sowing, little if any soil is placed over the seeds, as seeds can be generally sown into the soil by maintaining a planting depth of about 2-3 times the size of the seed. Sowing types and patterns For hand sowing, several sowing types exist; these include: * Flat sowing * Ridge sowing * Wide bed sowing Several patterns for sowing may be used together with these types; these include: * Regular rows * Rows that are ind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germination
Germination is the process by which an organism grows from a seed or spore. The term is applied to the sprouting of a seedling from a seed of an angiosperm or gymnosperm, the growth of a sporeling from a spore, such as the spores of fungi, ferns, bacteria, and the growth of the pollen tube from the pollen grain of a seed plant. Seed plants Germination is usually the growth of a plant contained within a seed; it results in the formation of the seedling. It is also the process of reactivation of metabolic machinery of the seed resulting in the emergence of radicle and plumule. The seed of a vascular plant is a small package produced in a fruit or cone after the union of male and female reproductive cells. All fully developed seeds contain an embryo and, in most plant species some store of food reserves, wrapped in a seed coat. Some plants produce varying numbers of seeds that lack embryos; these are empty seeds which never germinate. Dormant seeds are viable seeds that do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Brazilian National Forests
According to the Brazilian National System of Conservation Units, a National forest (Brazil), national forest of Brazil is an area with forest cover of predominantly native species that has as its basic objective the multiple sustainable use of the forest resources and scientific research, with emphasis on methods of sustainable exploitation of native forests. There are 67 national forests in Brazil. {, class="wikitable sortable" !Name !!State !!Biome !!Created !!Area (ha} , - , Açu National Forest, Açu , Rio Grande do Norte , , Caatinga , , 2001 , , style="text-align:right;", 225 , - , Açungui National Forest, Açungui , Paraná (state), Paraná , , Atlantic Forest, , 1968 , , style="text-align:right;", 490 , - , Altamira National Forest, Altamira , Pará , , Amazon biome, Amazon, , 1998 , , style="text-align:right;", 725,406 , - , Amaná National Forest, Amaná , Pará , , Amazon biome, Amazon, , 2006 , , style="text-align:right;", 542,655 , - , Amapá National Forest, Ama ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cerrado
The ''Cerrado'' (, ) is a vast ecoregion of tropical savanna in eastern Brazil, particularly in the states of Goiás, Mato Grosso do Sul, Mato Grosso, Tocantins, Minas Gerais, and the Federal District. The core areas of the Cerrado biome are the Brazilian highlands – the ''Planalto''. The main habitat types of the Cerrado consist of forest savanna, wooded savanna, park savanna and gramineous-woody savanna. The ''Cerrado'' also includes savanna wetlands and gallery forests. The second largest of Brazil's major habitat types, after the Amazonian rainforest, the Cerrado accounts for a full 21 percent of the country's land area (extending marginally into Paraguay and Bolivia). The first detailed European account of the Brazilian cerrados was provided by Danish botanist Eugenius Warming (1892) in the book ''Lagoa Santa'', : The above is the original. There are other, later French and Portuguese translations not listed here. in which he describes the main features of the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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