|
Tetrathylacium
''Tetrathylacium'' is a genus of two species of shrubs and small trees in the family Salicaceae native to southern Central America and northern South America. Previously it was treated in the family Flacourtiaceae but was moved along with its close relatives to the Salicaceae based on analyses of DNA data. ''Tetrathylacium'' is rather unique in the Samydaceae in having tightly arranged panicles of spikes, four sepals and stamens, and non-aril, arillate seeds. The stems are often inhabited by ants, and ''T. macrophyllum'' is suspected to have locust pollination. References Salicaceae Malpighiales genera Taxa named by Eduard Friedrich Poeppig {{Salicaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetrathylacium Johansenii
''Tetrathylacium'' is a genus of two species of shrubs and small trees in the family Salicaceae native to southern Central America and northern South America. Previously it was treated in the family Flacourtiaceae but was moved along with its close relatives to the Salicaceae based on analyses of DNA data. ''Tetrathylacium'' is rather unique in the Samydaceae in having tightly arranged panicles of spikes, four sepals and stamens, and non-arillate An aril (pronounced ), also called an arillus, is a specialized outgrowth from a seed that partly or completely covers the seed. An arillode or false aril is sometimes distinguished: whereas an aril grows from the attachment point of the see ... seeds. The stems are often inhabited by ants, and ''T. macrophyllum'' is suspected to have locust pollination. References Salicaceae Malpighiales genera Taxa named by Eduard Friedrich Poeppig {{Salicaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salicaceae
The Salicaceae is the willow family of flowering plants. The traditional family (Salicaceae ''sensu stricto'') included the willows, poplar, aspen, and cottonwoods. Genetic studies summarized by the Angiosperm Phylogeny Group (APG) have greatly expanded the circumscription of the family to contain 56 genera and about 1220 species, including the Scyphostegiaceae and many of the former Flacourtiaceae. In the Cronquist system, the Salicaceae were assigned to their own order, Salicales, and contained three genera (''Salix'', ''Populus'', and '' Chosenia''). Recognized to be closely related to the Violaceae and Passifloraceae, the family is placed by the APG in the order Malpighiales. Under the new circumscription, all members of the family are trees or shrubs that have simple leaves with alternate arrangement and temperate members are usually deciduous. Most members have serrate or dentate leaf margins, and those that have such toothed margins all exhibit salicoid teeth; a sali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flacourtiaceae
The Flacourtiaceae is a defunct family of flowering plants whose former members have been scattered to various families, mostly to the Achariaceae and Salicaceae. It was so vaguely defined that hardly anything seemed out of place there and it became a dumping ground for odd and anomalous genera, gradually making the family even more heterogeneous. In 1975, Hermann Sleumer noted that "Flacourtiaceae as a family is a fiction; only the tribes are homogeneous." In Cronquist's classification, the Flacourtiaceae included 79–89 genera and 800–1000 species. Of these, many, including the type genus ''Flacourtia'', have now been transferred to the Salicaceae in the molecular phylogeny-based classification, known as the APG IV system, established by the Angiosperm Phylogeny Group. In the list below, the Salicaceae are circumscribed broadly. Some taxonomists further divide the Salicaceae '' sensu lato'' into three families: Salicaceae ''sensu stricto'', Scyphostegiaceae, and Samyd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eduard Friedrich Poeppig
Eduard Friedrich Poeppig (16 July 1798 – 4 September 1868) was a German botanist, zoologist and explorer. Biography Poeppig was born in Plauen, Saxony. He studied medicine and natural history at the University of Leipzig, graduating with a medical degree. On graduation, the rector of the university gave him a botanical mission to North and South America. He was helped out financially by a small group of friends and scientists in Leipzig, that included botanist Christian Friedrich Schwägrichen, who in exchange, received sets of specimens.JSTOR Global Plants Poeppig, Eduard Friedrich (1798-1868) He subsequently worked as a naturalist in (1823–24) and |
Paul Carpenter Standley
Paul Carpenter Standley (March 21, 1884 – June 2, 1963) was an American botanist known for his work on neotropical plants. __TOC__ Standley was born on March 21, 1884 in Avalon, Missouri. He attended Drury College in Springfield, Missouri and New Mexico State College, where he received a bachelor's degree in 1907, and received a master's degree from New Mexico State College in 1908. He remained at New Mexico State College as an assistant from 1908–1909. He was the Assistant Curator of the Division of Plants at the United States National Museum from 1909 to 1922. In spring, 1928, he took a position at the Field Museum of Natural History in Chicago, where worked until 1950. While at the Field Museum he did fieldwork in Guatemala between 1938 and 1941. After his retirement in 1950, he moved to the '' Escuela Agricola Panamericana,'' where he worked in the library and herbarium and did field work until 1956, when he stopped doing botanical work. In 1957 he moved to Tegucig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berthold Carl Seemann
Berthold Carl Seemann (25 February 1825, in Hanover, Germany – 10 October 1871, in Nicaragua, Central America), was a German botanist. He travelled widely and collected and described plants from the Pacific and South America. In 1844 he travelled to the United Kingdom to study botany at the Royal Botanic Gardens, Kew. On the recommendation of Sir WJ Hooker, he was appointed naturalist on the voyage of exploration of the American west coast and Pacific by Henry Kellett on HMS ''Herald'', 1847–1851, along with the naturalists Thomas Edmondston, and John Goodridge. The expedition returned via Hawaii, Hong Kong and the East Indies, calling at the Cape in March 1851. Here he met up with his old acquaintance Zeyher, and with Baur and Juritz they climbed Table Mountain on 13 March 1851, Ecklon being unwell and unable to accompany them. On 16 March Zeyher introduced him to Bowie at Wynberg. He left the Cape on 27 March and was back in England on 6 June 1851. The botanical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aril
An aril (pronounced ), also called an arillus, is a specialized outgrowth from a seed that partly or completely covers the seed. An arillode or false aril is sometimes distinguished: whereas an aril grows from the attachment point of the seed to the ovary (from the funiculus or '' hilum''), an arillode forms from a different point on the seed coat. The term "aril" is sometimes applied to any fleshy appendage of the seed in flowering plants, such as the mace of the nutmeg seed. Arils and arillodes are often edible enticements that encourage animals to transport the seed, thereby assisting in seed dispersal. Pseudarils are aril-like structures commonly found on the pyrenes of Burseraceae species that develop from the mesocarp of the ovary. The fleshy, edible pericarp splits neatly in two halves, then falling away or being eaten to reveal a brightly coloured pseudaril around the black seed. The aril may create a fruit-like structure, called (among other names) a '' false ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ants
Ants are Eusociality, eusocial insects of the Family (biology), family Formicidae and, along with the related wasps and bees, belong to the Taxonomy (biology), order Hymenoptera. Ants evolved from Vespoidea, vespoid wasp ancestors in the Cretaceous period. More than 13,800 of an estimated total of 22,000 species have been classified. They are easily identified by their geniculate (elbowed) Antenna (biology), antennae and the distinctive node-like structure that forms their slender waists. Ants form Ant colony, colonies that range in size from a few dozen predatory individuals living in small natural cavities to highly organised colonies that may occupy large territories and consist of millions of individuals. Larger colonies consist of various castes of sterile, wingless females, most of which are workers (ergates), as well as soldiers (dinergates) and other specialised groups. Nearly all ant colonies also have some fertile males called "drones" and one or more fertile females ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locust
Locusts (derived from the Vulgar Latin ''locusta'', meaning grasshopper) are various species of short-horned grasshoppers in the family Acrididae that have a swarming phase. These insects are usually solitary, but under certain circumstances they become more abundant and change their behaviour and habits, becoming gregarious. No taxonomic distinction is made between locust and grasshopper species; the basis for the definition is whether a species forms swarms under intermittently suitable conditions; this has evolved independently in multiple lineages, comprising at least 18 genera in 5 different acridid subfamilies. Normally, these grasshoppers are innocuous, their numbers are low, and they do not pose a major economic threat to agriculture. However, under suitable conditions of drought followed by rapid vegetation growth, serotonin in their brains triggers dramatic changes: they start to breed abundantly, becoming gregarious and nomadic (loosely described as migrator ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollination
Pollination is the transfer of pollen from an anther of a plant to the stigma of a plant, later enabling fertilisation and the production of seeds, most often by an animal or by wind. Pollinating agents can be animals such as insects, birds, and bats; water; wind; and even plants themselves, when self-pollination occurs within a closed flower. Pollination often occurs within a species. When pollination occurs between species, it can produce hybrid offspring in nature and in plant breeding work. In angiosperms, after the pollen grain (gametophyte) has landed on the stigma, it germinates and develops a pollen tube which grows down the style until it reaches an ovary. Its two gametes travel down the tube to where the gametophyte(s) containing the female gametes are held within the carpel. After entering an ovum cell through the micropyle, one male nucleus fuses with the polar bodies to produce the endosperm tissues, while the other fuses with the ovule to produce the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
