Rhizophora racemosa | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Malpighiales |
Family: | Rhizophoraceae |
Genus: | Rhizophora |
Species: | R. racemosa |
Binomial name | |
Rhizophora racemosa | |
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. [1]
Members of the genus Rhizophora are very similar to each other in morphology. They grow up to 30 m (100 ft) tall often with aerial stilt roots, but in more marginal habitats are shorter, more branched and scrubby. The leaves grow in opposite pairs, each pair with two interlocking stipules. The leaves are simple and entire, with elliptical hairless blades and slightly down-rolled margins. The lower surfaces have numerous tiny corky warts which appear as black spots on dried leaves. [2]
At one time considered to be a subspecies of Rhizophora mangle , R. racemosa is now accepted as a full species, most easily distinguished by the fact that the stem of the axillary flowers branches up to six times, making a maximum cluster size of 128. However, the inflorescences more usually contain 32 to 64 flowers. Other distinguishing characteristics include thick, short rounded bracteoles and rounded flower buds. [2]
In West Africa, estuaries, bays and lagoons are fringed by tidal mangrove forests, dominated by Rhizophora and Avicennia . When new mudflats are formed, seagrasses are the first plants that grow on the mud, with Rhizophora racemosa, a pioneering species, being the first mangrove to appear. [3] With time, the mud solidifies and more tree and plant species arrive. On the seaward side the trees are short but get steadily taller further inland. [3] The nipa palm (Nypa fruticans) has been introduced to Nigeria and Cameroon and has become invasive, to the detriment of the native mangrove species. [4]
Some insect pollination takes place, but R. racemosa is largely wind-pollinated. The fruit produce propagules which may fall into the water and be dispersed by wind and currents. [5]
In West Africa, Rhizophora racemosa is used for construction poles and firewood on a limited scale. The smoke has antimicrobial properties and is also used for smoking meat. In the Americas it is less likely to be harvested as it is more scarce and is not considered to be of much value. [1] Extracts from the bark of Rhizophora racemosa has been proven for its potential as an indicator in titration. [6]
The Arecaceae is a family of perennial flowering plants in the monocot order Arecales. Their growth form can be climbers, shrubs, tree-like and stemless plants, all commonly known as palms. Those having a tree-like form are called palm trees. Currently 181 genera with around 2,600 species are known, most of them restricted to tropical and subtropical climates. Most palms are distinguished by their large, compound, evergreen leaves, known as fronds, arranged at the top of an unbranched stem. However, palms exhibit an enormous diversity in physical characteristics and inhabit nearly every type of habitat within their range, from rainforests to deserts.
Conocarpus erectus, commonly called buttonwood or button mangrove, is a mangrove shrub in the family Combretaceae. This species grows on shorelines in tropical and subtropical regions around the world.
Palm sugar is a sweetener derived from any variety of palm tree. Palm sugar is sometimes qualified by the type of palm, as in coconut palm sugar. While sugars from different palms may have slightly different compositions, all are processed similarly and can be used interchangeably.
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 to 12 meters (39') 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.
The Florida mangroves ecoregion, of the mangrove forest biome, comprise an ecosystem along the coasts of the Florida peninsula, and the Florida Keys. Four major species of mangrove populate the region: red mangrove, black mangrove, white mangrove, and the buttonwood. The mangroves live in the coastal zones in the more tropical southern parts of Florida; mangroves are particularly vulnerable to frosts. Mangroves are important habitat as both fish nursery and brackish water habitats for birds and other coastal species.
Laguncularia racemosa, the white mangrove, is a species of flowering plant in the leadwood tree family, Combretaceae. It is native to the coasts of western Africa from Senegal to Cameroon, the Atlantic Coast of the Americas from Bermuda and Florida to the Bahamas, Mexico, the Caribbean, and south to Brazil; and on the Pacific Coast of the Americas from Mexico to northwestern Peru, including the Galápagos Islands.
Rhizophora apiculata belongs to the Plantae kingdom under the Rhizophoraceae family. Currently R. apiculata is distributed throughout Australia, Guam, India, Indonesia, Malaysia, Micronesia, New Caledonia, Papua New Guinea, the Philippines, Singapore, the Solomon Islands, Sri Lanka, Taiwan, the Maldives, Thailand, Vanuatu, and Vietnam. Rhizophora apiculata is called ‘bakhaw lalaki,’ in the Philippines, "Thakafathi ތަކަފަތި" in the Maldives, 'Đước' in Vietnam, Garjan in India, as well as other vernacular names.
The New Guinea mangroves is a mangrove ecoregion that covers extensive areas of the coastline New Guinea, the large island in the western Pacific Ocean north of Australia.
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.
The Burmese or Myanmar Coast mangroves are an ecoregion in Burma, Malaysia, and Thailand where there were once thick forests of mangroves but today most has been cleared, resulting in loss of habitat for wildlife.
The Sunda Shelf mangroves ecoregion, in the mangrove biome, are on the coasts of the islands of Borneo and eastern Sumatra in Malaysia and Indonesia. They are home to the proboscis monkey.
Nypa fruticans, commonly known as the nipa palm or mangrove palm, is a species of palm native to the coastlines and estuarine habitats of the Indian and Pacific Oceans. It is the only palm considered adapted to the mangrove biome. This species is the only member of the genus Nypa and the subfamily Nypoideae, forming monotypic taxa.
Rhizophora mucronata is a species of mangrove found on coasts and river banks in East Africa and the Indo-Pacific region.
Ceriops tagal, commonly known as spurred mangrove or Indian mangrove, is a mangrove tree species in the family Rhizophoraceae. It is a protected tree in South Africa. The specific epithet tagal is a plant name from the Tagalog language.
Lumnitzera racemosa, commonly known as the white-flowered black mangrove, is a species of mangrove in the family Combretaceae. It is found on the eastern coast of Africa and other places in the western Indo-Pacific region. It has one accepted variety from the noniminate species, Lumnitzera racemosa var. lutea (Gaudich.) Exell.
The Guianan mangroves (NT1411) is a coastal ecoregion of southeastern Venezuela, Guyana, Suriname and French Guiana. 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 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 Abatan River is a river in western Bohol, Philippines. The river winds through the towns of Catigbian, Antequera, Balilihan, and Maribojoc to its mouth at Cortes.