Rhizophora harrisonii | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Malpighiales |
Family: | Rhizophoraceae |
Genus: | Rhizophora |
Species: | R. harrisonii |
Binomial name | |
Rhizophora harrisonii Alleyne Leechman, 1918 | |
Synonyms [1] | |
Rhizophora × brevistylaSalvoza |
Rhizophora harrisonii is a species of plant in the family Rhizophoraceae. It can be found in Brazil, Cameroon, Colombia, Costa Rica, Ecuador, Guyana, French Guiana, Honduras, Nicaragua, Panama, Suriname, Trinidad, Tobago, and Venezuela. [2]
Plants of the World Online considers it a naturally-occurring hybrid of Rhizophora mangle and Rhizophora racemosa , as Rhizophora x harrisonii. [1]
It is a tree that reaches a size of up to 20 m high. It has elliptical leaves, 11–15 cm long and 4–7 cm wide, the acute apex, the cuneate base, glabrous, undersides with black dots. The inflorescence of 5–12 cm long, 3-5 times branched, with many flowers, peduncle 2–7 cm long, with bracts thick, bifid; pedicels 3–11 mm long, flowers 1 cm long; stamens 8; oval or slightly elliptical floral bud, acute apex. Oval-lanceolate fruit, 4 cm long and 1.5 cm wide, radicle 11–25 cm long.[ citation needed ]
Rhizophora harrisonii is native to both the Tropical Atlantic and the Tropical Eastern Pacific. In the Atlantic basin it ranges along the Atlantic coast of Africa from Angola to Senegal, and along the Atlantic, Caribbean, and Gulf of Mexico coasts of South and Central America from northeastern Brazil to eastern Mexico. In the eastern Pacific it ranges from southern Mexico to Peru. [1]
Being a component of the mangrove communities, gentleman mangroves are usually associated with other mangrove species such as Avicennia tonduzii Moldenke, Avicennia bicolor Stand., Avicennia germinans (L.) L., Avicennia schaueriana Stapt & Leechm., Laguncularia racemosa (L.) Gaertn. f., Pelliciera rhizophorae Tr. & Pl. And Rhizophora mangle L. [3]
Rhizophora harrisonii was described by Alleyne Leechman and published in Bulletin of Miscellaneous Information Kew 1918 (1): 8, f. A, in the year 1918. [4]
Rhizophora : generic name that derives from the Greek words: ριζα (rhiza), which means "root" and φορος (phoros), which means "support", referring to the piles of the base. [5]
harrisonii: epithet awarded in honor of the director of the Director of Science and Agriculture in British Guiana, Sir John Bunchmore Harrison.
Rhizophora mangle, the red mangrove, is distributed in estuarine ecosystems throughout the tropics. Its viviparous "seeds", in actuality called propagules, become fully mature plants before dropping off the parent tree. These are dispersed by water until eventually embedding in the shallows.
Avicennia germinans, the black mangrove, is a shrub or small tree growing up to 12 meters in the acanthus family, Acanthaceae. It grows in tropical and subtropical regions of the Americas, on both the Atlantic and Pacific Coasts, and on the Atlantic Coast of tropical Africa, where it thrives on the sandy and muddy shores where seawater reaches. It is common throughout coastal areas of Texas and Florida, and ranges as far north as southern Louisiana and coastal Georgia in the United States.
Manglares de Tumbes National Sanctuary is a protected natural area located in the region of Tumbes, Peru. Established in 1988, it protects the largest area of mangrove forest in Peru.
The Maranhão mangroves is a mangrove ecoregion of northern Brazil. It supports half of the shorebird population of the country. The combination of flat land, heavy rainfall and high tides causes the mangroves to extend up to 40 kilometres (25 mi) inland, where they are interspersed with other rainforest species.
Guaraqueçaba Ecological Station is an ecological station in the municipality of Guaraqueçaba, Paraná, Brazil.
The Central African mangroves ecoregion consists of the largest area of mangrove swamp in Africa, located on the coasts of West Africa, mainly in Nigeria.
Rhizophora racemosa is a species of mangrove tree in the family Rhizophoraceae. It has a patchy distribution on the Pacific coast of Central and South America, occurs in places on the Atlantic coast of that continent, and has a more widespread range on the Atlantic coast of West Africa.
The Guianan mangroves (NT1411) is a coastal ecoregion of southeastern Venezuela, Guyana, Suriname, French Guiana and Brazil. The mangroves provide an important habitat for migrating birds that winter in the area. Large areas are intact, although they are threatened by destruction of the trees for timber and to make way for agriculture, and from upstream agricultural and industrial pollution.
The Amapá mangroves (NT1402) is an ecoregion along the Atlantic coast of the state of Amapá in Brazil. The low coastal plain has been formed from recent sedimentation, including sediments deposited by the rivers and sediments carried northward from the mouth of the Amazon River by strong currents and deposited by the tides. The extensive mangroves grow on the newly formed coastal mudflats and along the edges of estuaries. They merge into freshwater várzea flooded forests further inland. The ecoregion is generally well-preserved, although excessive extraction of natural resources including timber and shrimps is a concern.
The Pará mangroves (NT1427) is an ecoregion along the Atlantic coast of the state of Pará in Brazil. They constitute the western extension of the Maranhão mangroves ecoregion. The mangroves are relatively intact, although they are under some pressure from agriculture and logging.
The Esmeraldas-Pacific Colombia mangroves (NT1409) is an ecoregion of mangrove forests along the Pacific coast of Colombia and Ecuador. It is threatened by human population growth, leading to over-exploitation for wood and clearance for farming and aquaculture.
Petrea volubilis, commonly known as purple wreath, queen's wreath, sandpaper vine, and nilmani, is an evergreen flowering vine in the family Verbenaceae, native to Tropical America, that is valued especially for its display of violet flowers.
The Northwest Mexican Coast mangroves is a mangrove ecoregion of the southern Baja California Peninsula and coastal Sonora and northern Sinaloa states in northwestern Mexico. They are the northernmost mangroves on the Pacific Coast of North America and the region is transitional between tropical and temperate seas.
The Bocas del Toro-San Bastimentos Island-San Blas mangroves ecoregion covers the mangrove habitats along the Caribbean Sea coast of Costa Rica and across the northern coast of Panama. An offshore reef and barrier islands of the region help protect the mangroves from destructive waves. The ecoregion has a high number of endangered and threatened species, including the loggerhead sea turtle, green sea turtle, and hawk's bill sea turtle.
The Moist Pacific Coast mangroves ecoregion covers a series of disconnected mangrove sites along the Pacific Ocean coast of Costa Rica and Panama. These sites occur mostly on coastal flatlands around lagoons, particularly where rivers from the inland mountains reach the sea, bringing fresh water to the coastal forests. The area is in a transition zone from the drier coastline to the north; rainfall in this ecoregions is over 2,000 mm/year, and reaches over 3,600 mm/year at the southern end.
The Northern Dry Pacific Coast mangroves ecoregion covers the mangrove habitats in a series of sites along the Pacific Ocean coast of Guatemala and El Salvador. This part of Central America is relatively dry compared to higher elevations or more southerly areas, so the wetland mangroves serve as a refuge for animals of the interior during the winter dry season. The mangroves only extend a few kilometers inland to where the salt water influence is gone; the ecoregion surrounding the mangroves is the Central American dry forests ecoregion.
The Rio Negro-Rio San Sun mangroves ecoregion covers a series of small of discontinuous mangrove forests on the Caribbean Sea coast of Costa Rica, from a small portion inside the border with Nicaragua in the west to the border with Panama in the east. The coast on this stretch is a flat, alluvial plain, and mangroves are only a small part of a diverse patchwork of local habitats including swamps, mixed rainforests, coastal lagoons, sea grass beds, and sandy beaches. Much of the territory is "blackwater river" in character - slow-moving channels in wooded swamps with water stained by decayed matter. These mangroves are periodically damaged by hurricanes, such as in 1988 from Hurricane Joan, but are able to regenerate.
The Rio Piranhas mangroves ecoregion covers a series of mangrove forests along the Atlantic Ocean coast of the eastern tip of Brazil. The mangrove sections are spread across 350 km, from the mouth of the Mamanguape River in the north, to the vicinity of Maceió in the south. This coast is centered on the city of Recife, and the mangrove sections often surround industrial ports and cities.
The Southern Dry Pacific Coast mangroves ecoregion covers a series of mangrove forests along the Pacific Ocean coast of Nicaragua and Costa Rica, from the southern margin of the Gulf of Fonseca to the Gulf of Nicoya near the border with Panama. Because the area is drier than the mangroves further south, evapotranspiration leaves some areas with higher salinity and even salt pans in the internal areas.
The Trinidad mangroves ecoregion covers the separate mangrove forest areas on the coast of the island of Trinidad, in the country of Trinidad and Tobago. The character of the mangroves is affected by the large amount of fresh water flowing out of the Orinoco River and Amazon River to the south, which flow northwest around the island. The mangroves of Trinidad are found on all coasts, and are usually in the estuaries of rivers, but also found in coastal lagoons.