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Exochorda
''Exochorda'' is a small genus of flowering plants in the family Rosaceae, native to China and central Asia (Turkestan). They are used as ornamental plants with the common name pearl bush, or pearlbush. Numerous species have been described on the basis of differing appearance and geographical separation, but a systematic studyGao Fangyou. 1998. Exochorda: ''five species or one?: a biosystematic study of the Rosaceous genus'' Exochorda. Wageningen University Dissertation published as a book. revealed that the different types are closely related and probably all descended from a single species that formerly had a wide distribution that has been fragmented by habitat loss. As a single species the correct name is '' E. racemosa''. Description They are deciduous shrubs growing tall. The leaves are paddle-shaped oval, long, with an entire or bluntly serrated margin. The flowers are white, with five petals, produced in spring on the ends of the branches. The fruit is a dry coccetum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exochorda Racemosa
''Exochorda racemosa'', the pearlbush or common pearlbush, is a species of plant in the family Rosaceae. This species is mostly found in China and Japan. Taxonomy and etymology ''Exochorda racemosa'' was first described by John Lindley. It is placed in the genus '' Exochorda'' and family Rosaceae, the rose family. The plant gets its common name, "common pearlbush", from its pearl-looking flowers. Description A loose, irregular or vase-shaped and upright shrub, this species is deciduous. It has oblong leaves, about long and wide, that are rounded and toothed at the margin on the top. The flowers are white, and flower in late April to early May. The flowers have round petals, 12-25 stamen The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filament ...s, borne in racemes in groups of about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exochordeae
Exochordeae is a tribe of the rose family, Rosaceae, belonging to the subfamily Amygdaloideae Amygdaloideae is a subfamily within the flowering plant family Rosaceae. It was formerly considered by some authors to be separate from Rosaceae, and the family names Prunaceae and Amygdalaceae have been used. Reanalysis from 2007 has shown that .... Genera *'' Exochorda'' Lindl., China and central Asia. *'' Oemleria'' Rchb., Pacific Coast, North America. *'' Prinsepia'' Royle, Asia References Rosales tribes {{Amygdaloideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrub
A shrub or bush is a small to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple Plant stem, stems and shorter height, less than tall. Small shrubs, less than tall are sometimes termed as subshrubs. Many botany, botanical groups have species that are shrubs, and others that are trees and herbaceous plants instead. Some define a shrub as less than and a tree as over 6 m. Others use as the cutoff point for classification. Many trees do not reach this mature height because of hostile, less than ideal growing conditions, and resemble shrub-sized plants. Others in such species have the potential to grow taller in ideal conditions. For longevity, most shrubs are classified between Perennial plant, perennials and trees. Some only last about five years in good conditions. Others, usually larger and more woody, live beyond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Award Of Garden Merit
The Award of Garden Merit (AGM) is a long-established award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions. It includes the full range of cultivated plants, from annuals, biennials and perennials to shrubs and trees. It covers plants grown for specific purposes - such as vegetable crops, fruit, hedging, topiary, groundcover, summer bedding, houseplants, etc. It tests characteristics such as robustness, hardiness, longevity, flowering/fruiting abundance and quality, usefulness, and ease of cultivation. It pays particular attention to a plant's ability to survive and thrive in challenging conditions such as wind and frost. The AGM trophy symbol is widely used in gardening literature as a sign of exceptional quality, and is recognised as such by writers, horticulturalists, nurseries, and everybody in the UK who practises gardening. History The Award of Garden Merit is a mark of quality aw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Horticultural Society
The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (North Yorkshire), Rosemoor (Devon) and Bridgewater (Greater Manchester); flower shows including the Chelsea Flower Show, Hampton Court Palace Flower Show, Tatton Park Flower Show and Cardiff Flower Show; community gardening schemes; Britain in Bloom and a vast educational programme. It also supports training for professional and amateur gardeners. the president was Keith Weed and the director general was Clare Matterson CBE. History Founders The creation of a British horticultural society was suggested by John Wedgwood (son of Josiah Wedgwood) in 1800. His aims were fairly modest: he wanted to hold regular meetings, allowing the society's members the opportunity to present papers on their horticultural activities and discov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victor Lemoine
Pierre Louis Victor Lemoine (October 21, 1823 in Delme, Moselle - December 11, 1911) was a celebrated and prolific French flower breeder who, among other accomplishments, created many of today's lilac varieties. As a result of his accomplishments, the term ''French lilac'' has come to mean all cultivars of the common lilac that have double flowers, regardless of their origin. Early years Lemoine was born to a family of skilled gardeners in Delme, Lorraine, France on October 21, 1823. His father and grandfather managed large garden estates at the time of his birth. The family was affluent enough for Lemoine to attend an exclusive boys school nearby. With his family's connections, he was able to apprentice with three leading horticulturalists in France. Lemoine devoted several years to furthering his knowledge working with these men. In 1840, at the age of 17, Lemoine went to work for botanist and nurseryman, E.A. Baumann, in the village of Bollwiller. Little is known about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camillo Karl Schneider
Camillo Karl Schneider (7 April 1876 – 5 January 1951) was a German botanist and landscape architect. A farmer's son, he was born at Wermsdorf, Gröppendorf, in the Kingdom of Saxony, and worked as a gardener at Zeitz, Dresden, Berlin and Greifswald. Returning to Berlin to work in the City Parks Department, he assisted in editorial work for the periodical ''Gartenwelt'', which led to his employ as a landscape assistant in Darmstadt and Berlin. In 1900, he moved to Vienna, where he practiced as a freelance architect and writer, travelling extensively through Europe. In 1904 he published his first books, including the beginning of his tome ''Illustrated Handbook of Broad-leaved Trees'', which he completed in 1912. However, the manuscript of what should have been his ''Masterpiece, magnum opus'', a study of the genus ''Berberis'', was destroyed in a bombing raid on Berlin in 1943. In 1907 he created the specimen series ''Plantae hungaricae 1907'' distributed as an exsiccata-like seri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different varieties, subspecies, species or genera through sexual reproduction. Generally, it means that each cell has genetic material from two different organisms, whereas an individual where some cells are derived from a different organism is called a chimera. Hybrids are not always intermediates between their parents such as in blending inheritance (a now discredited theory in modern genetics by particulate inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridization, which include genetic and morph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seed
In botany, a seed is a plant structure containing an embryo and stored nutrients in a protective coat called a ''testa''. More generally, the term "seed" means anything that can be Sowing, sown, which may include seed and husk or tuber. Seeds are the product of the ripened ovule, after the embryo sac is fertilization, fertilized by Pollen, sperm from pollen, forming a zygote. The embryo within a seed develops from the zygote and grows within the mother plant to a certain size before growth is halted. The formation of the seed is the defining part of the process of reproduction in seed plants (spermatophytes). Other plants such as ferns, mosses and marchantiophyta, liverworts, do not have seeds and use water-dependent means to propagate themselves. Seed plants now dominate biological Ecological niche, niches on land, from forests to grasslands both in hot and cold climates. In the flowering plants, the ovary ripens into a fruit which contains the seed and serves to disseminate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carpel
Gynoecium (; ; : gynoecia) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more) '' pistils'' and is typically surrounded by the pollen-producing reproductive organs, the stamens, collectively called the androecium. The gynoecium is often referred to as the "female" portion of the flower, although rather than directly producing female gametes (i.e. egg cells), the gynoecium produces megaspores, each of which develops into a female gametophyte which then produces egg cells. The term gynoecium is also used by botanists to refer to a cluster of archegonia and any associated modified leaves or stems present on a gametophyte shoot in mosses, liverworts, and hornworts. The corresponding terms for the male parts of those plants are clusters of antheridia within the androecium. Flowers that bear a gynoecium but no stame ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fruit
In botany, a fruit is the seed-bearing structure in flowering plants (angiosperms) that is formed from the ovary after flowering. Fruits are the means by which angiosperms disseminate their seeds. Edible fruits in particular have long propagated using the movements of humans and other animals in a symbiotic relationship that is the means for seed dispersal for the one group and nutrition for the other; humans, and many other animals, have become dependent on fruits as a source of food. Consequently, fruits account for a substantial fraction of the world's agricultural output, and some (such as the apple and the pomegranate) have acquired extensive cultural and symbolic meanings. In common language and culinary usage, ''fruit'' normally means the seed-associated fleshy structures (or produce) of plants that typically are sweet (or sour) and edible in the raw state, such as apples, bananas, grapes, lemons, oranges, and strawberries. In botanical usage, the term ''fruit'' als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
