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Arizona Oak
''Quercus arizonica'', the Arizona white oak, is a North American tree species in the beech family. It is found in Arizona, New Mexico, western Texas, Sonora, Chihuahua, Coahuila, Sinaloa, and Durango. Description The Arizona white oak is one of the largest southwestern oaks. This tree may grow to , with a trunk diameter of . It has stout branches and a spreading crown. The leaves are about long, thick, and evergreen. It grows very slowly once it has become mature, adding approximately of diameter per year. * Bark: color is light grayish. The bark is initially thin and lenticelled, but later becomes quite thick, with shallow fissures and scaly ridges. * Twig: medium-sized, fuzzy. The color can be light brown or reddish brown. Twigs have pointy and fat clusters of terminal buds. * Leaves: alternate, evergreen, simple, and oblong. The color is yellowish green or bluish green. Leaves are usually 1 to 3 in long. The margins are usually entire or toothed, and are rounded a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Sprague Sargent
Charles Sprague Sargent (April 24, 1841March 22, 1927) was an American botanist. He was appointed in 1872 as the first director of Harvard University's Arnold Arboretum in Boston, Massachusetts, and held the post until his death. He published several works of botany. Early life Sargent was the second son of Henrietta (Gray) and Ignatius Sargent, a Boston merchant and banker who grew wealthy on railroad investments. He grew up on his father's 130-acre (53-ha) estate in Brookline, Massachusetts. He attended Harvard College, where he graduated in Biology in the class of 1862. Sargent enlisted in the Union Army later that year, saw service in Louisiana during the American Civil War, and was mustered out in 1865. He traveled in Europe and Asia for three years. Career Having returned to his family's Brookline estate, "Holmlea", Sargent took over its management as a horticulturist, influenced by his cousin Henry Winthrop Sargent and H. H. Hunnewell of Wellesley, Massachusetts, Welle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bark (botany)
Bark is the outermost layer of Plant stem, stems and roots of woody plants. Plants with bark include trees, woody vines, and shrubs. Bark refers to all the Tissue (biology), tissues outside the vascular cambium and is a nontechnical term. It overlays the wood and consists of the inner bark and the outer bark. The inner bark, which in older Plant stem, stems is living tissue, includes the innermost layer of the periderm. The outer bark on older stems includes the dead tissue on the surface of the stems, along with parts of the outermost periderm and all the tissues on the outer side of the periderm. The outer bark on trees which lies external to the living periderm is also called the Glossary of botanical terms#rhytidome, rhytidome. Products derived from bark include bark shingle siding and wall coverings, spices, and other flavorings, tanbark for tannin, resin, latex, medicines, poisons, various hallucinogenic chemicals, and Cork (material), cork. Bark has been used to make clot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants Described In 1895
Plants are the eukaryotes that form the kingdom Plantae; they are predominantly photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with cyanobacteria to produce sugars from carbon dioxide and water, using the green pigment chlorophyll. Exceptions are parasitic plants that have lost the genes for chlorophyll and photosynthesis, and obtain their energy from other plants or fungi. Most plants are multicellular, except for some green algae. Historically, as in Aristotle's biology, the plant kingdom encompassed all living things that were not animals, and included algae and fungi. Definitions have narrowed since then; current definitions exclude fungi and some of the algae. By the definition used in this article, plants form the clade Viridiplantae (green plants), which consists of the green algae and the embryophytes or land plants (hornworts, liverworts, mosses, lycophytes, ferns, conifers and other gymnosperm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oaks Of Mexico
Oaks may refer to: Plants * Oak trees or shrubs in the genus ''Quercus'' in the plant family Fagaceae * Other trees not in genus ''Quercus'', see Oak (other) People * Age Oks (known professionally as Agnes Oaks), Estonian ballerina * Dallin D. Oaks, American linguistics professor * Dallin H. Oaks (born 1932), American attorney, jurist, author, professor, public speaker, and religious leader *David Oaks, American executive director of MindFreedom International * Harold Anthony Oaks (1896-1968), Canadian World War I flying ace * Jeff Oaks, American poet *Louis D. Oaks, American Chief of Police for Los Angeles * Nathaniel T. Oaks (born 1946), American politician in Maryland * Robert Oaks (born 1952), American politician in New York * Robert C. Oaks (born 1936), American general and general authority of The Church of Jesus Christ of Latter-day Saints * Winona Oak, Swedish singer also known as Oaks Places United States * Oaks, Bell County, Kentucky * Oaks, Missouri * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus
An oak is a hardwood tree or shrub in the genus ''Quercus'' of the beech family. They have spirally arranged leaves, often with lobed edges, and a nut called an acorn, borne within a cup. The genus is widely distributed in the Northern Hemisphere; it includes some 500 species, both deciduous and evergreen. Fossil oaks date back to the Middle Eocene. Molecular phylogeny shows that the genus is divided into Old World and New World clades, but many oak species hybridise freely, making the genus's history difficult to resolve. Ecologically, oaks are keystone species in habitats from Mediterranean semi-desert to subtropical rainforest. They live in association with many kinds of fungi including truffles. Oaks support more than 950 species of caterpillar, many kinds of gall wasp which form distinctive galls (roundish woody lumps such as the oak apple), and a large number of pests and diseases. Oak leaves and acorns contain enough tannin to be toxic to cattle, but pigs are ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bonanza Books
The Crown Publishing Group is a subsidiary of Penguin Random House that publishes across several fiction and non-fiction categories. Originally founded in 1933 as a remaindered books wholesaler called Outlet Book Company, the firm expanded into publishing original content in 1936 under the Crown name, and was acquired by Random House in 1988. Under Random House's ownership, the Crown Publishing Group was operated as an independent division until 2018, when it was merged with the rest of Random House's adult programs. Crown authors include Jean Auel, Max Brooks, George W. Bush, Eitan Bernath, Deepak Chopra, Ann Coulter, Andrew Cuomo, Giada De Laurentiis, Will Ferrell (as fictional character Ron Burgundy), Gillian Flynn, Jim Gaffigan, Ina Garten, Greg Gutfeld, Mindy Kaling, Rachel Maddow, Jillian Michaels, Barack Obama, Michelle Obama, Theresa Rebeck, Mark Brennan Rosenberg, Judith Rossner, Rebecca Skloot, Suzanne Somers, Martha Stewart, Jonah Goldberg, Michael Jackson ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thick-billed Parrot
The thick-billed parrot (''Rhynchopsitta pachyrhyncha'') is a medium-sized parrot endemic to Mexico that formerly ranged into the southwestern United States. Its position in parrot phylogeny is the subject of ongoing discussion; it is sometimes referred to as thick-billed macaw or thick-billed conure. In Mexico, it is locally called ''guacamaya'' ("macaw") or ''cotorra serrana'' ("mountain parrot"). Classified internationally as Endangered through IUCN, the thick-billed parrot's decline has been central to multiple controversies over wildlife management. In 2018, the estimated wild population in Mexico was 1,700. Taxonomy ''Pachyrhyncha'' is currently classified as a species of the genus '' Rhynchopsitta'' of macaw-like thick-billed parrots of which there are two extant species (the other being the maroon-fronted parrot), and one extinct species. However, recent molecular DNA studies indicate that ''pachyrhyncha'' and its sister species ''terrisi'' in genus ''Rhynchopsitta'' are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Javelinas
Peccaries (also javelinas or skunk pigs) are pig-like ungulates of the family Tayassuidae (New World pigs). They are found throughout Central and South America, Trinidad in the Caribbean, and in the southwestern area of North America. Peccaries usually measure between in length, and a full-grown adult usually weighs about . They represent the closest relatives of the family Suidae, which contains pigs and relatives. Together Tayassuidae and Suidae are grouped in the suborder Suina within the order Artiodactyla (even-toed ungulates). Peccaries are social creatures that live in herds. They are omnivores and eat roots, grubs, and a variety of other foods. They can identify each other by their strong odors. A group of peccaries that travel and live together is called a squadron. A squadron of peccaries averages between six and nine members. Peccaries first appeared in North America during the Miocene and migrated into South America during the Pliocene–Pleistocene as part of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inonotus Andersonii
''Inonotus andersonii'', also known as oak canker-rot and heart rot, is a species of resupinate polypore fungus that forms fruiting bodies underneath tree bark. ''I. andersonii'' induces canker rot in oak, hickory, cottonwood, and willow trees. Wood that has been infected by this species appears bleached of color and crumbles easily. Where sapwood decay reaches the cambium, the cambium may be killed, giving rise to an externally visible canker. The cankers caused by ''I. andersonii'' are commonly elongate and may become callused at the edges. The bark near expanding or developing cankers may also ooze varying amounts of dark sap. Affected branches or trees may show general symptoms of decline including poor growth, thinning, dieback, epicormic shoots (short twiggy branches arising from dormant buds on large-diameter stems) and branch or trunk failures. Generally, trees with canker rots decline slowly, often appearing to die from the top down as they slowly fall apart over a per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monoecious
Monoecy (; adj. monoecious ) is a sexual system in seed plants where separate male and female cones or flowers are present on the same plant. It is a monomorphic sexual system comparable with gynomonoecy, andromonoecy and trimonoecy, and contrasted with dioecy where individual plants produce cones or flowers of only one sex and with bisexual or hermaphroditic plants in which male and female gametes are produced in the same flower. Monoecy often co-occurs with anemophily, because it prevents self-pollination of individual flowers and reduces the probability of self-pollination between male and female flowers on the same plant. Monoecy in Flowering plant, angiosperms has been of interest for evolutionary biologists since Charles Darwin. Terminology Monoecious comes from the Greek words for one house. History The term monoecy was first introduced in 1735 by Carl Linnaeus. Darwin noted that the flowers of monoecious species sometimes showed traces of the opposite sex function, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evergreen
In botany, an evergreen is a plant which has Leaf, foliage that remains green and functional throughout the year. This contrasts with deciduous plants, which lose their foliage completely during the winter or dry season. Consisting of many different species, the unique feature of evergreen plants lends itself to various environments and purposes. Evergreen species There are many different kinds of evergreen plants, including trees, shrubs, and vines. Evergreens include: * Most species of conifers (e.g., pine, Tsuga, hemlock, spruce, and fir), but not all (e.g., larch). * Live oak, holly, and "ancient" gymnosperms such as cycads * Many woody plants from frost-free climates * Rainforest trees * All eucalypts * Lycopodiopsida, Clubmosses and relatives * Most bamboos The Latin binomial term , meaning "always green", refers to the evergreen nature of the plant, for instance: :''Cupressus sempervirens'' (a cypress) :''Lonicera sempervirens'' (a honeysuckle) :''Sequoia sempervirens'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fagaceae
The Fagaceae (; ) are a family of flowering plants that includes beeches, chestnuts and oaks, and comprises eight genera with around 1,000 or more species. Fagaceae in temperate regions are mostly deciduous, whereas in the tropics, many species occur as evergreen trees and shrubs. They are characterized by alternate simple leaves with pinnate venation, unisexual flowers in the form of catkins, and fruit in the form of cup-like (Calybium and cupule, cupule) nuts. Their leaves are often lobed, and both petiole (botany), petioles and stipules are generally present. Their fruits lack endosperm and lie in a scaly or spiny husk that may or may not enclose the entire nut, which may consist of one to seven seeds. In the oaks, genus ''Quercus'', the fruit is a non-valved nut (usually containing one seed) called an acorn. The husk of the acorn in most oaks only forms a cup in which the nut sits. Other members of the family have fully enclosed nuts. Fagaceae is one of the most ecologically i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
