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Greater Pond Sedge
''Carex riparia'', the greater pond sedge, is a species of sedge found across Europe and Asia. It grows in a variety of wet habitats, and can be a dominant species in some swamps. It is Britain's largest ''Carex'', growing up to tall, with glaucous leaves up to long. It hybridises with a number of other ''Carex'' species, including the closely related ''Carex acutiformis'' – the lesser pond sedge. A variegated cultivar is grown as an ornamental grass. Distribution and habitat ''Carex riparia'' has a broad distribution over Europe and Western and Central Asia, with isolated occurrences in North Africa. It can form large stands along slow-flowing rivers, canals, on the edges of lakes, and in wet woodland. It may be the dominant species in swamps, especially if there is standing water in spring, and is also found in tall-herb fens, alongside ''Carex acutiformis'', ''Carex acuta'' and other similar species. Description ''Carex riparia'' was first described by William Curti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Curtis
William Curtis (11 January 1746 – 7 July 1799) was an English botanist and entomologist, who was born at Alton, Hampshire, site of the Curtis Museum. Curtis began as an apothecary, before turning his attention to botany and other natural history. The publications he prepared reached a wider audience than early works on the subject had intended. At the age of 25 he produced ''Instructions for collecting and preserving insects; particularly moths and butterflies''. Curtis was demonstrator of plants and Praefectus Horti at the Chelsea Physic Garden from 1771 to 1777. He established his own London Botanic Garden at Lambeth in 1779, moving to Brompton in 1789. He published ''Flora Londinensis'' (6 volumes, 1777–1798), a pioneering work in that it devoted itself to urban nature. Financial success was not found, but he went on the publish ''The Botanical Magazine'' in 1787, a work that would also feature hand coloured plates by artists such as James Sowerby and Sydenham Edwards. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carex Acuta
''Carex acuta'', the acute sedge, slender tufted-sedge, or slim sedge, can be found growing on the margins of rivers and lakes in the Palaearctic terrestrial ecoregions in beds of wet, alkaline or slightly acid depressions with mineral soil. ''Carex acuta'' does not tolerate prolonged desiccation. The community is distributed, in particular, in northern France, the Low Countries, Central Europe south to the Sava and Drava valleys of Croatia, the northern Morava valley of Serbia and Romania, north to Poland, the Kaliningrad District, Lithuania and Latvia, in southern Scandinavia, in the Dnieper basin of northern Ukraine and southern Belarus, in the lower Volga The Volga (; russian: Во́лга, a=Ru-Волга.ogg, p=ˈvoɫɡə) is the List of rivers of Europe#Rivers of Europe by length, longest river in Europe. Situated in Russia, it flows through Central Russia to Southern Russia and into the Cas ... Valley. References External links * * acuta Flora of Asia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carex Lasiocarpa
''Carex lasiocarpa'' is a broadly distributed species of wetland sedge sometimes known as woollyfruit sedge or slender sedge. It is considered a species of Least Concern by the IUCN Red List due to its extensive range (much of North America, Europe, and Asia) with many stable populations. Distribution and habitat Broadly distributed across much of North America and Eurasia, ''Carex lasiocarpa'' is found in a variety of freshwater wetland habitats including bogs, fens, and shorelines. It is also founds in wet areas of mountainous regions of moderate elevation. In New York state it is considered to be an indicator species for fens. Description ''Carex lasiocarpa'' is a perennial plant that spreads vegetatively to form dense stands. It bears erect stems which may exceed in height with long, thin leaves. The stem has one to several compact pistillate spikes and at the tip one long staminate spike. The pistillate spike vaguely resembles a tiny purplish or brownish ear of corn, with m ... [...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 breeds, varieties, species or genera through sexual reproduction. Hybrids are not always intermediates between their parents (such as in blending 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 hybridisation, which include genetic and morphological differences, differing times of fertility, mating behaviors and cues, and physiological rejection of sperm cells or the developing embryo. Some act before fertilization and others after it. Similar barriers exist in plants, with differences in flowering tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stigma (botany)
The stigma () is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. Description The stigma, together with the style and ovary (typically called the stigma-style-ovary system) comprises the pistil, which is part of the gynoecium or female reproductive organ of a plant. The stigma itself forms the distal portion of the style, or stylodia, and is composed of , the cells of which are receptive to pollen. These may be restricted to the apex of the style or, especially in wind pollinated species, cover a wide surface. The stigma receives pollen and it is on the stigma that the pollen grain germinates. Often sticky, the stigma is adapted in various ways to catch and trap pollen with various hairs, flaps, or sculpturings. The pollen may be captured from the air (wind-borne pollen, anemophily), from visiting insects or other animals ( biotic pollination), or in rare cases from surrounding water (hydrophily). Stigma can vary from long and sle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Utricle (fruit)
This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary of leaf morphology. For other related terms, see Glossary of phytopathology, Glossary of lichen terms, and List of Latin and Greek words commonly used in systematic names. A B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fruit
In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particular have long propagated using the movements of humans and animals in a symbiotic relationship that is the means for seed dispersal for the one group and nutrition for the other; in fact, humans and many 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 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" also i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaucous
''Glaucous'' (, ) is used to describe the pale grey or bluish-green appearance of the surfaces of some plants, as well as in the names of birds, such as the glaucous gull (''Larus hyperboreus''), glaucous-winged gull (''Larus glaucescens''), glaucous macaw (''Anodorhynchus glaucus''), and glaucous tanager (''Thraupis glaucocolpa''). The term ''glaucous'' is also used botanically as an adjective to mean "covered with a greyish, bluish, or whitish waxy coating or bloom that is easily rubbed off" (e.g. glaucous leaves). The first recorded use of ''glaucous'' as a color name in English was in the year 1671. Examples The epicuticular wax coating on mature plum fruit gives them a glaucous appearance. Another familiar example is found in the common grape genus (''Vitis vinifera''). Some cacti have a glaucous coating on their stem(s). Glaucous coatings are hydrophobic so as to prevent wetting by rain. Their waxy character serves to hinder climbing of leaves, stem or fruit by insec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf
A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the shoot system. In most leaves, the primary photosynthetic tissue is the palisade mesophyll and is located on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of ''Eucalyptus'', palisade mesophyll is present on both sides and the leaves are said to be isobilateral. Most leaves are flattened and have distinct upper (adaxial) and lower ( abaxial) surfaces that differ in color, hairiness, the number of stomata (pores that intake and output gases), the amount and structure of epicuticular wax and other features. Leaves are mostly green in color due to the presence of a compound called chlorophyll that is essential for photosynthesis as it absorbs light ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Culm (botany)
A culm is the aerial (above-ground) stem of a grass or sedge. It is derived from Latin 'stalk', and it originally referred to the stem of any type of plant. In horticulture or agriculture, it is especially used to describe the stalk or woody stems of bamboo, cane or grain grasses. Malting In the production of malted grains, the culms refer to the rootlets of the germinated grains. The culms are normally removed in a process known as "deculming" after kilning when producing barley malt, but form an important part of the product when making sorghum or millet Millets () are a highly varied group of small-seeded grasses, widely grown around the world as cereal crops or grains for fodder and human food. Most species generally referred to as millets belong to the tribe Paniceae, but some millets al ... malt. These culms are very nutritious and are sold off as animal feed. References Plant morphology {{Botany-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spike (botany)
A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the shoot grows in height, with no predetermined growth limit. Examples of racemes occur on mustard (genus ''Brassica'') and radish (genus ''Raphanus'') plants. Definition A ''raceme'' or ''racemoid'' is an unbranched, indeterminate type of inflorescence bearing pedicellate flowers (flowers having short floral stalks called ''pedicels'') along its axis. In botany, an ''axis'' means a shoot, in this case one bearing the flowers. In indeterminate inflorescence-like racemes, the oldest flowers grow close to the base and new flowers are produced as the shoot grows in height, with no predetermined growth limit. A plant that flowers on a showy raceme may have this reflected in its scientific name, e.g. the species ''Cimicifuga racemosa''. A compou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moses Ashley Curtis
Moses Ashley Curtis (11 May 1808 – 10 April 1872) was a noted American botanist. Biography Curtis was born in Stockbridge, Massachusetts and educated at Williams College in Massachusetts. After graduating, he became a tutor for the children of former Governor Edward Bishop Dudley in Wilmington, North Carolina, returning to Massachusetts in 1833 to study theology. He married Mary de Rosset in 1834, was ordained in 1835 and obtained a post to teach at the Episcopal school at Raleigh, North Carolina. He became rector of the Protestant Episcopal Church at Hillsborough, North Carolina in 1841 and in charge of a parish at Society Hill, South Carolina in 1847 before returning to the Protestant Episcopal Church at Hillsborough in 1857. He died in Hillsborough, North Carolina in 1872. As a botanist, Curtis explored the southern Appalachian Mountains, embarking on a major expedition in 1839. He maintained a herbarium of dried specimens and contributed specimens to John Torrey and Asa Gray ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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