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Fragaria Virginiana
''Fragaria virginiana'', known as Virginia strawberry, wild strawberry, common strawberry, or mountain strawberry, is a North American strawberry that grows across much of the United States and southern Canada. It is one of the two species of wild strawberry that were hybridized to create the modern domesticated garden strawberry (''Fragaria'' × ''ananassa''). Description ''Fragaria virginiana'' can grow up to tall. The plant typically bears numerous trifoliate leaves that are green on top, pale green on the lower surface. Each leaflet is about 10'' ''cm (4'' ''in) long and wide. The leaflet is oval shaped and has coarse teeth along the edge except near the bottom. This plant has a five-petaled white flower with numerous pistils, surrounded by yellow-anthered stamens. There are ten small green sepals under the petals. The seeds of this plant are developed from the pistils in the centre of the flower which will become dark-coloured fruit (achenes) on the strawber ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deception Pass State Park
Deception Pass (; ) is a strait separating Whidbey Island from Fidalgo Island, in the northwest part of the U.S. state of Washington (state), Washington. It connects Skagit Bay, part of Puget Sound, with the Strait of Juan de Fuca. A pair of bridges known collectively as Deception Pass Bridge cross Deception Pass. The bridges were added to the National Register of Historic Places in 1982. History The Deception Pass area has been home to various Coast Salish tribes for thousands of years. The first Europeans to see Deception Pass were members of the 1790 expedition of Manuel Quimper on the ''Princess Royal (1778 sloop), Princesa Real''. The Spanish gave it the name ''Boca de Flon''. A group of sailors led by Joseph Whidbey, part of the Vancouver Expedition, found and mapped Deception Pass on June 7, 1792. George Vancouver gave it the name "Deception" because it had misled him into thinking Whidbey Island was a peninsula. The "deception" was heightened due to Whidbey's failure to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Accessory Fruit
An accessory fruit is a fruit that contains tissue derived from plant parts other than the Ovary (botany), ovary. In other words, the flesh of the fruit develops not from the floral ovary, but from some adjacent tissue exterior to the carpel (for example, from Receptacle (botany), receptacles or sepal). As a general rule, the accessory fruit is a combination of several floral organs, including the ovary. In contrast, true fruit forms exclusively from the ovary of the flower.Esau, K. 1977. ''Anatomy of seed plants''. John Wiley and Sons, New York. Accessory fruits are usually indehiscent, meaning that they do not split open to release seeds when they have reached maturity. Incorporated organs The following are examples of accessory fruits listed by the plant organ from which the accessory tissue is derived: Fruit with fleshy seeds, such as pomegranate or Melicoccus bijugatus, mamoncillo, are not considered to be accessory fruits. Examples Apples and pears The part of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antoine Nicolas Duchesne
Antoine Nicolas Duchesne (born 7 October 1747 Versailles (city), Versailles; died 18 February 1827 Paris) was a French botanist known for his keen observation of variation within species, and for demonstrating that species are not immutable, because mutations can occur.Darrow, G.M. 1966. The Strawberry: History, Breeding and Physiology. Holt, Rinehart and Winston. "As Duchesne's observations were unaided by knowledge of modern concepts of genetics and molecular biology, his insight was truly remarkable." His particular interests were in strawberries and gourds.Ratcliff, M. J. (2007). ''Duchesne’s Strawberries: Between Growers’ Practices and Academic Knowledge''. In S. Müller-Wille and H.-J. Rheinberger [eds.]. ''Heredity Produced: At th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Plant Names Index
The International Plant Names Index (IPNI) describes itself as "a database of the names and associated basic bibliographical details of seed plants, ferns and lycophytes." Coverage of plant names is best at the rank of species and genus. It includes basic bibliographical details associated with the names. Its goals include eliminating the need for repeated reference to primary sources for basic bibliographic information about plant names. The IPNI also maintains a list of standardized Author citation (botany), author abbreviations. These were initially based on Authors of Plant Names, Brummitt & Powell (1992), but new names and abbreviations are continually added. Description IPNI is the product of a collaboration between The Royal Botanic Gardens, Kew (Index Kewensis), The Harvard University Herbaria (Gray Herbarium Index), and the Australian National Herbarium (Australian Plant Name Index, APNI). The IPNI database is a collection of the names registered by the three cooperating ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philip Miller
Philip Miller Royal Society, FRS (1691 – 18 December 1771) was an English botany, botanist and gardener of Scottish descent. Miller was chief gardener at the Chelsea Physic Garden for nearly 50 years from 1722, and wrote the highly popular ''The Gardeners Dictionary''. Life Born in Deptford or Greenwich, Miller was chief gardener at the Chelsea Physic Garden from 1722 until he was pressured to retire shortly before his death. According to the botanist Peter Collinson (botanist), Peter Collinson, who visited the physic garden in July 1764 and recorded his observation in his commonplace books, Miller "has raised the reputation of the Chelsea Garden so much that it excels all the gardens of Europe for its amazing variety of plants of all orders and classes and from all climates..." He wrote ''The Gardener's and Florists Dictionary or a Complete System of Horticulture'' (1724) and The Gardeners Dictionary, ''The Gardener's Dictionary containing the Methods of Cultivating and Im ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hesperochiron Pumilus
''Hesperochiron'' is a small genus of plants in the waterleaf family containing two species native to western North America. These are thick-rooted perennial herbs growing in squat patches at ground level and producing bluish-white flowers with yellow throats. They grow in wet areas such as seepy meadows. The species are generally similar in appearance, with oblong green leaves up to 7 or 8 centimeters long and 2 to 3 wide, often coated with tiny hairs. ''Hesperochiron californicus'', the California hesperochiron, produces slightly larger flowers than the dwarf hesperochiron, ''Hesperochiron pumilus''. The ''H. pumilus'' flower resembles wild strawberry, but has only five stamens and distinct elliptical leaves. They bloom briefly in early spring in the sagebrush steppe Sagebrush steppe also known as the sagebrush sea, is a type of shrub-steppe, a plant community characterized by the presence of shrubs, and usually dominated by sagebrush, any of several species in the genus ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fragaria Chiloensis
''Fragaria chiloensis'', the beach strawberry, Chilean strawberry, or coastal strawberry, is one of two species of wild strawberry that were hybridized to create the modern garden strawberry (''F. × ananassa''). It is native to the Pacific Ocean coasts of North and South America. Description It is an evergreen plant growing to 15–30 centimetres (6–12 inches) tall. The relatively thick leaves are glossy green and trifoliate, each leaflet around 5 cm (2 in) long. The stems are covered with long hairs and the leaves sometimes have a dense fringe of hairs. The flowers are white, produced in spring and early summer. The fruit, a strawberry, is edible, red on the surface and white inside. Genetics All strawberries have a base haploid count of 7 chromosomes. ''F. chiloensis'' is octoploid, having eight sets of these chromosomes for a total of 56. These eight genomes pair as four distinct sets, of two different types, with little or no pairing between sets ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fragaria Iinumae
''Fragaria iinumae'' is a species of strawberry native to Japan and eastern Russia. In Japan it was first discovered on and the name was given. All strawberries have a base haploid count of 7 chromosomes. ''Fragaria iinumae'' is diploid, having 2 pairs of these chromosomes for a total of 14 chromosomes. ''Fragaria iinumae'' is one of the diploid progenitors of the octoploid strawberry. Fragaria iinumae (flower s6).jpg, Flower Fragaria iinumae (fruits with scale).jpg, Fruits Fragaria iinumae (Montage).jpg, Montage See also * Alpine plant Alpine plants are plants that grow in an alpine climate, which occurs at high elevation and above the tree line. There are many different plant species and taxon, taxa that grow as a plant community in these alpine tundra. These include perennial g ... References External links * {{Taxonbar, from=Q3088700 iinumae Plants described in 1907 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fragaria Vesca
''Fragaria vesca'', commonly called the wild strawberry, woodland strawberry, Alpine strawberry, Carpathian strawberry or European strawberry, is a Perennial plant, perennial herbaceous plant in the Rosaceae, rose family that grows naturally throughout much of the Northern Hemisphere, and that produces edible fruits. The Latin binomial nomenclature, specific epithet ''vesca'' literally means "thin" or "feeble", but likely carries the sense "edible" in this context (compare ''vescor'', "to eat"). Description Five to eleven soft, hairy white flowers are borne on a green, soft fresh-hairy stalk that usually lifts them above the leaves. The light-green leaves are trifoliate (in threes) with toothed margins. The plant spreads mostly by means of runners (stolons), but the seeds are viable and establish new populations. Its fruit persistence (botany), persists for an average of 1.2 days, which is possibly the shortest persistence of any fleshy fruit in Europe. It bears an average of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyploidy
Polyploidy is a condition in which the cells of an organism have more than two paired sets of ( homologous) chromosomes. Most species whose cells have nuclei (eukaryotes) are diploid, meaning they have two complete sets of chromosomes, one from each of two parents; each set contains the same number of chromosomes, and the chromosomes are joined in pairs of homologous chromosomes. However, some organisms are polyploid. Polyploidy is especially common in plants. Most eukaryotes have diploid somatic cells, but produce haploid gametes (eggs and sperm) by meiosis. A monoploid has only one set of chromosomes, and the term is usually only applied to cells or organisms that are normally diploid. Males of bees and other Hymenoptera, for example, are monoploid. Unlike animals, plants and multicellular algae have life cycles with two alternating multicellular generations. The gametophyte generation is haploid, and produces gametes by mitosis; the sporophyte generation is diploid and p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chromosomes
A chromosome is a package of DNA containing part or all of the genetic material of an organism. In most chromosomes, the very long thin DNA fibers are coated with nucleosome-forming packaging proteins; in eukaryotic cells, the most important of these proteins are the histones. Aided by chaperone proteins, the histones bind to and condense the DNA molecule to maintain its integrity. These eukaryotic chromosomes display a complex three-dimensional structure that has a significant role in transcriptional regulation. Normally, chromosomes are visible under a light microscope only during the metaphase of cell division, where all chromosomes are aligned in the center of the cell in their condensed form. Before this stage occurs, each chromosome is duplicated ( S phase), and the two copies are joined by a centromere—resulting in either an X-shaped structure if the centromere is located equatorially, or a two-armed structure if the centromere is located distally; the joined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haploid
Ploidy () is the number of complete sets of chromosomes in a cell (biology), cell, and hence the number of possible alleles for Autosome, autosomal and Pseudoautosomal region, pseudoautosomal genes. Here ''sets of chromosomes'' refers to the number of maternal and paternal chromosome copies, respectively, in each homologous chromosome pair—the form in which chromosomes naturally exist. Somatic cells, Tissue (biology), tissues, and Individual#Biology, individual organisms can be described according to the number of sets of chromosomes present (the "ploidy level"): monoploid (1 set), diploid (2 sets), triploid (3 sets), tetraploid (4 sets), pentaploid (5 sets), hexaploid (6 sets), heptaploid or septaploid (7 sets), etc. The generic term polyploidy, polyploid is often used to describe cells with three or more sets of chromosomes. Virtually all sexual reproduction, sexually reproducing organisms are made up of somatic cells that are diploid or greater, but ploidy level may vary wid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
