|
Leptocereus Grantianus
''Leptocereus grantianus'' (''sebucan'') is a sprawling or suberect, nearly spineless cactus, reaching up to 2 meters in height and 3 to 5 centimeters in diameter. Its elongated stems have from three to five prominent ribs with broadly scalloped edges. Ribs of young joints are thin, and the small areoles or spine-bearing areas may bear from one to three minute, nearly black spines which disappear as the joints grow older. The flowers are solitary at terminal areoles, from 3 to 6 centimeters long, and nocturnal. The outer perianth segments are linear, green, and tipped by an areole like those of the tube and ovary. The inner perianth segments are numerous, cream-colored, oblong-obvate, obtuse, and about 8 millimeters long. The fruit is subglobose to ellipsoid and about 4 centimeters in diameter. Habitat ''Leptocereus grantianus'' is endemic to the island of Culebra which is located just off the northeastern corner of Puerto Rico. Only one population, consisting of approximately ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nathaniel Lord Britton
Nathaniel Lord Britton (January 15, 1859 – June 25, 1934) was an American botanist and taxonomist who co-founded the New York Botanical Garden in the Bronx, New York (state), New York. Early life Britton was born in New Dorp, Staten Island, New Dorp in Staten Island, New York to Jasper Alexander Hamilton Britton and Harriet Lord Turner. His parents wanted him to study religion, but he was attracted to nature study at an early age. He was a graduate of the School of Engineering and Applied Science (Columbia University), Columbia University School of Mines and afterwards taught geology and botany at Columbia University. He joined the Torrey Botanical Society, Torrey Botanical Club soon after graduation and was a member his entire life. He married Elizabeth Gertrude Britton, Elizabeth Gertrude Knight, a Bryophyte, bryologist, on August 27, 1885. They had met when she joined the club and were lifelong collaborators in botanical research. New York Botanical Garden During their h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cactus
A cactus (, or less commonly, cactus) is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. The word ''cactus'' derives, through Latin, from the Ancient Greek word (''káktos''), a name originally used by Theophrastus for a spiny plant whose identity is now not certain. Cacti occur in a wide range of shapes and sizes. Although some species live in quite humid environments, most cacti live in habitats subject to at least some drought. Many live in extremely dry environments, even being found in the Atacama Desert, one of the driest places on Earth. Because of this, cacti show many adaptations to conserve water. For example, almost all cacti are succulents, meaning they have thickened, fleshy parts adapted to store water. Unlike many other succulents, the stem is the only part of most cacti where this vital process takes place. Most species of cacti have lost true leaves, retaining only spines, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perianth
The perianth (perigonium, perigon or perigone in monocots) is the non-reproductive part of the flower, and structure that forms an envelope surrounding the sexual organs, consisting of the calyx (sepals) and the corolla (petals) or tepals when called a perigone. The term ''perianth'' is derived from Greek περί (, "around") and άνθος (, "flower"), while ''perigonium'' is derived from περί () and γόνος (, "seed, sex organs"). In the mosses and liverworts (Marchantiophyta), the perianth is the sterile tubelike tissue that surrounds the female reproductive structure (or developing sporophyte). Flowering plants In flowering plants, the perianth may be described as being either dichlamydeous/heterochlamydeous in which the calyx and corolla are clearly separate, or homochlamydeous, in which they are indistinguishable (and the sepals and petals are collectively referred to as tepals). When the perianth is in two whorls, it is described as biseriate. While the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Island Of Culebra
Isla Culebra (, ''Snake Island'') is an island, town and municipality of Puerto Rico and geographically part of the Spanish Virgin Islands. It is located approximately east of the Puerto Rican mainland, west of St. Thomas and north of Vieques. Culebra is spread over 5 barrios and Culebra Pueblo (Dewey), the main town and the administrative center of the island. Residents of the island are known as c''ulebrenses''. With a population of 1,792 as of the 2020 Census, it is Puerto Rico's least populous municipality. Originally called ''Isla del Pasaje'' and ''Isla de San Ildefonso'', Culebra is also known as ''Isla Chiquita'' ("Little Island"), ''Cuna del Sol Borincano'' ("Cradle of the Puerto Rican Sun") and ''Última Virgen'' ("Last Virgin", due to its position at the end of the Virgin Islands archipelago). History Some sources claim that Christopher Columbus was the first European to arrive at the island during his second voyage on November 19, 1493. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puerto Rico
Puerto Rico (; abbreviated PR; tnq, Boriken, ''Borinquen''), officially the Commonwealth of Puerto Rico ( es, link=yes, Estado Libre Asociado de Puerto Rico, lit=Free Associated State of Puerto Rico), is a Caribbean island and Unincorporated territories of the United States, unincorporated territory of the United States. It is located in the northeast Caribbean Sea, approximately southeast of Miami, Florida, between the Dominican Republic and the United States Virgin Islands, U.S. Virgin Islands, and includes the eponymous main island and several smaller islands, such as Isla de Mona, Mona, Culebra, Puerto Rico, Culebra, and Vieques, Puerto Rico, Vieques. It has roughly 3.2 million residents, and its Capital city, capital and Municipalities of Puerto Rico, most populous city is San Juan, Puerto Rico, San Juan. Spanish language, Spanish and English language, English are the official languages of the executive branch of government, though Spanish predominates. Puerto Rico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Punta Melones
Punta is an Afro-indigenous dance and cultural music originating in the Caribbean Island of Saint Vincent And The Grenadines by the Garifuna people before being exiled from the island. Which is also known as Yurumei. It has African and Arawak elements which are also the characteristics of the Garifuna language. Punta is the best-known traditional dance belonging to the Garifuna community. It is also known as banguity or bunda, before the first arrival of the Garifuna people in Punta Gorda, Roatan, Honduras on April 12, 1797. The diaspora of Garifuna people, commonly called the "Garifuna Nation", dates back to the amalgamation of West African slaves and the Arawak and Carib Amerindians. Punta is used to reaffirm and express the struggle felt by the indigenous population's common heritage through cultural art forms, such as dance and music, and to highlight their strong sense of endurance as well as reconnecting back to the ancestors of the Garifuna people. Besides Honduras, p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puerto Rican Dry Forests
The Puerto Rican dry forests are a tropical dry forest ecoregion located in southwestern and eastern Puerto Rico and on the offshore islands. They cover an area of . These forests grow in areas receiving less than of rain annually. Many of the trees are deciduous, losing their leaves during the dry season which normally lasts from December to April. Geography The dry forest life zone exist in two areas on the island of Puerto Rico - along the south coast of the island (in the dry orographic rain shadow of the Cordillera Central) and in the northeastern corner of the island near Fajardo, where the combination of low elevation and strong winds off the ocean result in a dry environment. Dry forests also exist on the adjacent off-shore islands of Culebra, Mona, Monito, Desecheo, Caja de Muertos, Cayo Santiago and most of the island of Vieques. Dry forests along the south coast cover a strip of land from Guayama in the east to Cabo Rojo in the west, and extends inland fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coccoloba Uvifera
''Coccoloba uvifera'' is a species of flowering plant in the buckwheat family, Polygonaceae, that is native to coastal beaches throughout tropical America and the Caribbean, including southern Florida, the Bahamas, the Greater and Lesser Antilles, and Bermuda. Common names include seagrape and baygrape. Fruit In late summer, it bears green fruit, about diameter, in large, grape-like clusters. The fruit gradually ripens to a purplish color. Each contains a large pit that constitutes most of the volume of the fruit. Cultivation and propagation Although it is capable of surviving down to about 2 °C (35.6 °F), the tree cannot survive frost. The leaves turn reddish before withering. The seeds of this plant, once gathered, must be planted immediately, for unlike most plants, the seeds cannot withstand being stored for future planting. ''C. uvifera'' is wind-resistant, moderately tolerant of shade, and highly tolerant of salt, so it is often planted to stabilize beach ed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bursera Simaruba
''Bursera simaruba'', commonly known as gumbo-limbo, copperwood, chaca, West Indian birch, naked Indian, and turpentine tree, is a tree species in the family Burseraceae, native to the Neotropics, from South Florida to Mexico and the Caribbean to Brazil, Nicaragua, and Venezuela. ''Bursera simaruba'' is prevalent in the Petenes mangroves ecoregion of the Yucatán, where it is a subdominant plant species to mangroves. Specimens may be found along the western coast of Florida. Description ''Bursera simaruba'' is a small to medium-sized tree growing to 30 meters tall, with a diameter of one meter or less at 1.5 meters above ground.Foster (2007) The bark is shiny dark red, and the leaves are spirally arranged and pinnate with 7-11 leaflets, each leaflet broad ovate, 4–10 cm long and 2–5 cm broad. Gumbo-limbo is semi-evergreen. The gumbo-limbo is referred to, humorously, as the tourist tree because the tree's bark is red and peeling, like the skin of the sunburnt to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Species
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are considered when assessing the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cactoideae
The Cactoideae are the largest subfamily of the cactus family, Cactaceae. Around 80% of cactus species belong to this subfamily. , the internal classification of the family Cactaceae remained uncertain and subject to change. A classification incorporating many of the insights from the molecular studies was produced by Nyffeler and Eggli in 2010. Various revisions have been published since, e.g. to the tribe Hylocereeae and the tribe Echinocereeae. Classifications remained uncertain . Tribes and genera , the National Center for Biotechnology Information used the division of the subfamily into tribes shown below. Some revisions to the circumscriptions of the tribes are also shown. *Blossfeldieae **''Blossfeldia'' * Browningieae **''Armatocereus'' – ''Browningia'' – ''Neoraimondia'' – '' Stetsonia'' *Cacteae **''Acharagma'' – ''Ariocarpus'' – '' Astrophytum'' – ''Aztekium'' – ''Coryphantha'' – '' Cumarinia'' – ''Echino ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
