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Retiniphyllum
''Retiniphyllum'' is a genus of flowering plants in the Family (biology), family Rubiaceae and contains 20 species. It is the only genus in the tribe Retiniphylleae. The representatives are shrubs or small trees that grow in white sand soils in tropical South America. They are mainly distributed in the Guayana Region (Venezuela) but also occur in the Amazon Basin, the eastern Andes and central and eastern Brasil. Description The species exhibit a character that is not common in the family Rubiaceae, viz. the presence of two collateral and pendulous ovules per locule. The shrubs or trees have apical buds with abundant resin. Each flower is subtended by a bracteole and the corollas are contorted. Stamens are reflexed in anthesis and have basal and apical sterile appendages. Many species also exhibit secondary pollen presentation. The 5-locular ovary contains two ovules per locule. The drupaceous fruits contain pyrenes with one seed due to the abortion of one ovule. Taxonomy ''R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retiniphyllum Secundiflorum
''Retiniphyllum'' is a genus of flowering plants in the family Rubiaceae and contains 20 species. It is the only genus in the tribe Retiniphylleae. The representatives are shrubs or small trees that grow in white sand soils in tropical South America. They are mainly distributed in the Guayana Region (Venezuela) but also occur in the Amazon Basin, the eastern Andes and central and eastern Brasil. Description The species exhibit a character that is not common in the family Rubiaceae, viz. the presence of two collateral and pendulous ovules per locule. The shrubs or trees have apical buds with abundant resin. Each flower is subtended by a bracteole and the corollas are contorted. Stamens are reflexed in anthesis and have basal and apical sterile appendages. Many species also exhibit secondary pollen presentation. The 5-locular ovary contains two ovules per locule. The drupaceous fruits contain pyrenes with one seed due to the abortion of one ovule. Taxonomy ''Retiniphyllum'' was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retiniphyllum Chloranthum
''Retiniphyllum chloranthum'' is a species of flowering plant in the family Rubiaceae. It occurs from Colombia to Guyana and northern Brazil. It was described by Adolpho Ducke Adolpho Ducke (October 19, 1876 – January 5, 1959), (also referred to as Adolfo Ducke and occasionally misspelled "Duque"), was a notable entomologist, botanist and ethnographer specializing in Amazonia. According to family records, he was an ... in 1943. References External links World Checklist of Rubiaceae Retiniphylleae Flora of the Amazon Flora of Brazil Flora of Colombia Flora of Guyana Plants described in 1943 Taxa named by Adolpho Ducke {{Ixoroideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retiniphyllum Concolor
''Retiniphyllum concolor'' is a species of flowering plant in the family Rubiaceae. It occurs from Colombia to Guyana and northern Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area .... References External links World Checklist of Rubiaceae Retiniphylleae Flora of the Amazon Flora of Brazil Flora of Colombia Flora of Guyana {{Ixoroideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retiniphyllum Cataractae
''Retiniphyllum cataractae'' is a species of flowering plant in the family Rubiaceae. It is endemic to the Amazonas. It was described for the first time by Adolpho Ducke Adolpho Ducke (October 19, 1876 – January 5, 1959), (also referred to as Adolfo Ducke and occasionally misspelled "Duque"), was a notable entomologist, botanist and ethnographer specializing in Amazonia. According to family records, he was an ... in 1938. References External links World Checklist of Rubiaceae Endemic flora of Brazil Retiniphylleae Taxa named by Adolpho Ducke {{Ixoroideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botryarrhena
''Botryarrhena'' is a genus of flowering plants in the family Rubiaceae. It was described by Adolpho Ducke in 1932.Adolpho Ducke. 1932. Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahlem 11: 476. It only holds two species, occurring in Brazil, Colombia, Peru and Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th .... Species * '' Botryarrhena pendula'' Ducke - Venezuela, Colombia, Brazil * '' Botryarrhena venezuelensis'' Steyerm. - Venezuela, Perú References External links''Botryarrhena'' in the World Checklist of Rubiaceae Rubiaceae genera Cordiereae Taxa named by Adolpho Ducke {{Ixoroideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johannes Müller Argoviensis
Johann Müller (9 May 1828 - 28 January 1896) was a Swiss botanist who was a specialist in lichens. He published under the name Johannes Müller Argoviensis to distinguish himself from other naturalists with similar names. Biography Müller was born into a farming family on 9 May 1828 in Teufenthal, Switzerland. He received his education at the Reinach gymnasium and then entered the Aargau industrial school, where he was passionate about botany and mathematics. Encouraged by Hans Schinz he built a herbarium of the flora of Aargau. In 1850 and 1851 he studied in Geneva and came into contact with prominent botanists Edmond Boissier and Alphonse Pyrame de Candolle (who offered him the vacant post of curator at his herbarium). In the spring of 1851 he collected in southern France with Jean Étienne Duby. The herbarium specimens from this trip were later sent to several herbaria in Europe. The following year, Müller travelled with Boissier to collect plants in the Alps of Savo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Spruce
Richard Spruce (10 September 1817 – 28 December 1893) was an English botanist specializing in bryology. One of the great Victorian botanical explorers, Spruce spent 15 years exploring the Amazon from the Andes to its mouth, and was one of the first Europeans to visit many of the places where he collected specimens. Spruce discovered and named a number of new plant species, and corresponded with some of the leading botanists of the nineteenth century. Early life and Career Richard Spruce was born near Ganthorpe, a small village near Castle Howard in Yorkshire. After training under his father, a local schoolmaster, Spruce began a career as a tutor and then as a mathematics master at St. Peter's School, York between 1839 and 1844. Spruce started his botanical collecting in Yorkshire about 1833. In 1834, at age 16, he drew up a neatly written list of all of the plants he had found on trips around Ganthorpe, focusing on bryophytes. Arranged alphabetically and containing 403 sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adolpho Ducke
Adolpho Ducke (October 19, 1876 – January 5, 1959), (also referred to as Adolfo Ducke and occasionally misspelled "Duque"), was a notable entomologist, botanist and ethnographer specializing in Amazonia. According to family records, he was an ethnic German with roots in Trieste Austro-Hungary (now in Italy). German was his first language; that is, the German commonly spoken in Trieste in the 19th century. Most of his books were written in German. Recruited by Emílio Goeldi, Ducke began his work in Amazônia as an entomologist for the Museu Paraense Emílio Goeldi, but due to the influence of botanists Jacques Hüber and Paul Le Cointe, he switched to botany. He traveled throughout Amazônia to study the complicated tree system of the rainforest. He published 180 articles and monographs, primarily on the Leguminosae, and he described 900 species and 50 new genera. In 1918, while continuing his work for the Paraense Museum, he collaborated with the Rio de Janeiro Botanical G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vanguerieae
Vanguerieae is a tribe of flowering plants in the family Rubiaceae and contains about 655 species in 30 genera. It is one of the most species-rich groups within the family and it is distributed across the Paleotropics. Description Several different life forms are present in the tribe: most species are shrubs, but geofructices (plants with woody rhizomes) (e.g. '' Fadogia homblei'', '' Pygmaeothamnus zeyheri''), small trees (e.g. '' Vangueria infausta''), and climbers (e.g. '' Keetia gueinzii'') also occur. As all Rubiaceae species, the leaves are opposite, simple and entire, and they have interpetiolar stipules. The phyllotaxis is decussate, sometimes conspicuously so (e.g. '' Canthium inerme''), and rarely whorled (e.g. '' Fadogia''). Some species have spines (e.g. ''Canthium''). Secondary pollen presentation is characteristic for the tribe and the species develop a conspicuous “stylar head”-complex, which is a structural unit consisting of a pollen presenting organ combi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ixoreae
''Ixora'' is a genus of flowering plants in the family Rubiaceae. It is the only genus in the tribe Ixoreae. It consists of tropical evergreen trees and shrubs and holds around 544 species. Though native to the tropical and subtropical areas throughout the world, its centre of diversity is in Tropical Asia. ''Ixora'' also grows commonly in subtropical climates in the United States, such as Florida where it is commonly known as West Indian jasmine. Other common names include viruchi, kiskaara, kepale, rangan, kheme, ponna, chann tanea, techi, pan, siantan, jarum-jarum/jejarum, jungle flame, jungle geranium, and cruz de Malta, among others. The plants possess leathery leaves, ranging from 3 to 6 inches in length, and produce large clusters of tiny flowers in the summer. Members of Ixora prefer acidic soil, and are suitable choices for bonsai. It is also a popular choice for hedges in parts of South East Asia. In tropical climates they flower year round and are commonly used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
