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Crataegus Pycnoloba
''Crataegus pycnoloba'' is a species of hawthorn in the Rosaceae family. It is native to the mountains of the northern and central Peloponnesus of Greece. The plant is a shrub or rarely a small tree. The fruit are red or dark reddish brown when immature, but later develop a yellow background colour. See also * List of hawthorn species with yellow fruit Most species of ''Crataegus'' (hawthorn) have red fruit, others can have black or purple fruit, and some have yellow or orange fruit. European and Asian species * '' C. altaica'' * '' C. azarolus'', fruit yellow, orange-yellowish, or red * ''C.' ... References pycnoloba Taxa named by Pierre Edmond Boissier Taxa named by Theodor von Heldreich Flora of Greece {{crataegus-stub ...
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Pierre Edmond Boissier
Pierre Edmond Boissier (25 May 1810 Geneva – 25 September 1885 Valeyres-sous-Rances) was a Swiss prominent botanist, explorer and mathematician. He was the son of Jacques Boissier (1784-1857) and Caroline Butini (1786-1836), daughter of Pierre Butini (1759-1838) a well-known physician and naturalist from Geneva. With his sister, Valérie Boissier (1813-1894), he received a strict education with lessons delivered in Italian and Latin. Edmond's interest in natural history stemmed from holidays in the company of his mother and his grandfather, Pierre Butini at Valeyres-sous-Rances. His hikes in the Jura and the Alps laid the foundation of his zest for later exploration and adventure. He attended a course at the Academy of Geneva given by Augustin Pyramus de Candolle. Edmond Boissier collected extensively in Europe, North Africa and western Asia, on occasion accompanied by his daughter, Caroline Barbey-Boissier (1847-1918) and her husband, William Barbey (1842-1914), who collect ...
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Theodor Heinrich Hermann Von Heldreich
Theodor Heinrich Hermann von Heldreich (3 March 1822 – 7 September 1902) was a German botanist born in Dresden. In 1851, he settled in Greece for the rest of his life. He carried out botanical experiments in the country. He published thirteen volumes of the “Herbarium Graecum Normale” between 1856 and 1896. In Greece, he served as director of the National Garden of Athens for over 50 years. He was also director of the natural history museum of Athens. Heldreich was good friends with Charles Darwin. Biography Scion of an old aristocratic family, he was the son of Conrad Friedrich Robert Heldreich and Amalia Charlotte Humbold. He initially studied philosophy. A love of botany, however, took him to Montpellier in 1837 to study under Professor Michel Félix Dunal. He later completed his botanical education in Geneva (1838–1842). In 1841, he was honoured by botanist Pierre Edmond Boissier, who named a genus of plants (in family Brassicaceae) from Palestine and Turkey ' ...
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Crataegus
''Crataegus'' (), commonly called hawthorn, quickthorn, thornapple, Voss, E. G. 1985. ''Michigan Flora: A guide to the identification and occurrence of the native and naturalized seed-plants of the state. Part II: Dicots (Saururaceae–Cornaceae)''. Cranbrook Institute of Science and University of Michigan Herbarium, Ann Arbor, Michigan. May-tree,Graves, Robert. ''The White Goddess: A Historical Grammar of Poetic Myth'', 1948, amended and enlarged 1966, New York: Farrar, Straus and Giroux. whitethorn, Mayflower, or hawberry, is a genus of several hundred species of shrubs and trees in the family Rosaceae, native to temperate regions of the Northern Hemisphere in Europe, Asia, North Africa, and North America. The name "hawthorn" was originally applied to the species native to northern Europe, especially the common hawthorn ''C. monogyna'', and the unmodified name is often so used in Britain and Ireland. The name is now also applied to the entire genus and to the related Asian ...
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Rosaceae
Rosaceae (), the rose family, is a medium-sized family of flowering plants that includes 4,828 known species in 91 genera. The name is derived from the type genus ''Rosa''. Among the most species-rich genera are ''Alchemilla'' (270), ''Sorbus'' (260), '' Crataegus'' (260), ''Cotoneaster'' (260), ''Rubus'' (250), and ''Prunus'' (200), which contains the plums, cherries, peaches, apricots, and almonds. However, all of these numbers should be seen as estimates—much taxonomic work remains. The family Rosaceae includes herbs, shrubs, and trees. Most species are deciduous, but some are evergreen. They have a worldwide range but are most diverse in the Northern Hemisphere. Many economically important products come from the Rosaceae, including various edible fruits, such as apples, pears, quinces, apricots, plums, cherries, peaches, raspberries, blackberries, loquats, strawberries, rose hips, hawthorns, and almonds. The family also includes popular ornamental trees and shrubs ...
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Peloponnese
The Peloponnese (), Peloponnesus (; el, Πελοπόννησος, Pelopónnēsos,(), or Morea is a peninsula and geographic regions of Greece, geographic region in southern Greece. It is connected to the central part of the country by the Isthmus of Corinth land bridge which separates the Gulf of Corinth from the Saronic Gulf. From the late Middle Ages until the 19th century the peninsula was known as the Morea ( grc-x-byzant, Μωρέας), (Morèas) a name still in colloquial use in its demotic Greek, demotic form ( el, Μωριάς, links=no), (Moriàs). The peninsula is divided among three administrative regions of Greece, administrative regions: most belongs to the Peloponnese (region), Peloponnese region, with smaller parts belonging to the West Greece and Attica (region), Attica regions. Geography The Peloponnese is a peninsula located at the southern tip of the mainland, in area, and constitutes the southernmost part of mainland Greece. It is connected to the mainlan ...
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List Of Hawthorn Species With Yellow Fruit
Most species of ''Crataegus'' (hawthorn) have red fruit, others can have black or purple fruit, and some have yellow or orange fruit. European and Asian species * '' C. altaica'' * '' C. azarolus'', fruit yellow, orange-yellowish, or red * ''C.'' ×''bornmuelleri'', fruit yellowish, orange, or red * '' C. cuneata'', fruit can be red or yellow, native to China * ''C. dahurica'' * ''C. ferganensis'' * ''C. kansuensis'' * '' C. laevigata'' cultivar 'François Rigaud' * '' C. orientalis'' var. ''pojarkovae'' * ''C.'' ×''pseudoazarolus'', fruit orange to almost black * '' C. pycnoloba'', immature red fruit ripen to largely yellow * '' C. scabrifolia'', fruit can be red or yellow * '' C. tanacetifolia'' * ''C.'' ×''tianshanica'' * ''C. tkatschenkoi'' (syn: ''C. trilobata'' V.I.Tkachenko, ''nom. illeg.'') * ''C. russanovii'' * '' C. wattiana'' * ''C. zarrei'', dark orange fruit American species * ''C. albicera'', series ''Crus-galli''Palmer, E.J. (1925). Synopsis of North American ...
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Taxa Named By Pierre Edmond Boissier
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ...
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Taxa Named By Theodor Von Heldreich
In biology, a taxon (back-formation from ''Taxonomy (biology), taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular Taxonomic rank, ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's Linnaean taxonomy, system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard de Jussieu, Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of bio ...
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