Psidium Galapageium
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Psidium Galapageium
''Psidium oligospermum'', the Galápagos guava or guayabillo, is a small tree or shrub native to the tropical Americas, ranging from Mexico through the Revillagigedo Islands, Central America, Cuba, Puerto Rico, the Windward Islands, the Galápagos Islands, and South America to central Brazil and northwestern Argentina. Description ''Psidium oligospermum'' is either a small tree or shrub that ranges up to in height and up to in diameter, with smooth, pinkish-grey Bark (botany), bark. It has wide-spreading branches with dotted grey Glossary of botanical terms#branchlet, branchlets with reddish to white or yellowish "trichomes" or hairs. The branchlets tend to become more smooth at the edges and the bark more stringy, and the Glossary of botanical terms#terminal, terminal branchlets and Leaf, leaves are sometimes covered with a Glossary of botanical terms#scurf, scurfy reddish bloom.Duncan M. Porter (1968) ''Annals of the Missouri Botanical Garden: Psidium (Myrtaceae) in the Galapa ...
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Mart
Mart may refer to: * Mart, or marketplace, a location where people regularly gather for the purchase and sale of provisions, livestock, and other goods * Mart (broadcaster), a local broadcasting station in Amsterdam * Mart (given name) * ''Mart.'', taxonomic author abbreviation for Carl Friedrich Philipp von Martius (1794–1868), German botanist * Mart (Syriac), Syriac title for women saints * Mart, Texas, a community in the United States * Data mart, an approach to handling big data Abbreviations * Museum of Modern and Contemporary Art of Trento and Rovereto, a museum in Italy * Mississippi Aerial River Transit, a demolished gondola lift in New Orleans, Louisiana * Montachusett Regional Transit Authority * Multiple Additive Regression Trees, a commercial name of gradient boosting See also * Kmart * Walmart Walmart Inc. (; formerly Wal-Mart Stores, Inc.) is an American multinational retail corporation that operates a chain of hypermarkets (also called supercente ...
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Acuminate
The following terms are used to describe leaf plant morphology, morphology in the description and taxonomy (biology), taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade is divided into two or more leaflet (botany), leaflets). The edge of the leaf may be regular or irregular, and may be smooth or have hair, bristles, or spines. For more terms describing other aspects of leaves besides their overall morphology see the leaf#Terminology, leaf article. The terms listed here all are supported by technical and professional usage, but they cannot be represented as mandatory or undebatable; readers must use their judgement. Authors often use terms arbitrarily, or coin them to taste, possibly in ignorance of established terms, and it is not always clear whether because of ignorance, or personal preference, or because usages change with time or context, or because of variation between specimens, even specimens from ...
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Santiago Island (Galápagos)
Santiago Island is one of the Galápagos Islands. The island, which consists of two overlapping volcanoes, has an area of and a maximum altitude of , atop the northwestern shield volcano. The volcano in the island's southeast erupted along a linear fissure and is much lower. The oldest lava flows on the island date back to 750,000 years ago. Names The original Spanish name was San Marcos Island ( or ), honoring Saint Mark the Evangelist. In 1892, as part of Ecuador's celebration of the quadricentennial of Columbus's first voyage, it was renamed Salvador or San Salvador Island () after the first island Columbus reached. Isabela and Fernandina were similarly renamed for the third and fourth islands. The present name ''Santiago'' () is the Spanish name of Saint James and a major center of pilgrimage in northern Spain. In English, the island has also been known as Duke of York's Island, King James's Island, and James Island, all in honor of King JamesII of England a ...
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Santa Cruz Island (Galápagos)
Santa Cruz Island (), also known as Indefatigable Island and by #Names, other names, is the most populous and second-largest List of islands of South America#Ecuador, island in the Galápagos Islands, Ecuador. Situated in the middle of the group, Santa Cruz is a shield volcano with an area of and a maximum altitude of . The seat of Santa Cruz Canton, Ecuador, Santa Cruz Canton is Puerto Ayora on Santa Cruz. The island's total population is around 18,000 with those living in smaller villages chiefly working in agriculture and cattle raising. Names The island's original Spanish language, Spanish name was San Clemente Island ( or ) in honor of Clement of Rome, St. Clement. This was changed to Bolivia Island () in honor of the South American revolutionary hero Simón Bolívar upon the islands' annexation by Ecuador in 1832 and then to ''Santa Cruz'' (, "Holy Cross") in reference to True Cross, the cross upon which Jesus was Crucifixion of Jesus, crucified during the 1892 renamin ...
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Pinta Island
Pinta Island () is one of the Galápagos Islands in Ecuador, west of South America. Pinta has an area of and a maximum altitude of . Names The Spanish name Pintaan adjective meaning "spotted"honors the '' Pinta'', the nickname of one of the three ships of Christopher Columbus's first voyage. Santa Maria Island is similarly named for another one of his vessels and Pinzón Island is partially named for the ''Pinta'''s captain Martín Alonso Pinzón. The island was charted by the English pirate William Ambrosia Cowley as Earl of Abingdon's Island in 1684 in honor of James Bertie, 1st Earl of Abingdon. This was later simplified to Abingdon Island. Geography The elongated island of Pinta is the northernmost of the active Galápagos volcanoes. Pinta is a shield volcano with an extensive underwater footprint originating from NNW-trending fissures. It has an area of and a maximum altitude of . The rocks around the north of the island were previously known as Norris's Rocks ...
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Isabela Island (Galápagos)
Isabela Island () is the largest of the Galápagos Islands, with an area of and a length of . By itself, it is larger than all the other islands in the chain combined, and it has a little under 2,000 permanent inhabitants. The island straddles the equator. Names The original Spanish name of Isabela () was Santa Isabela Island ( or ) in honor of the Aragonese Queen Elizabeth of Portugal, who was canonized by Pope Urban VIII on 24 June 1626. When the name was formally changed to Isabela Island in 1892 as part of Ecuador's quadricentennial celebration of Columbus's first voyage, its eponym changed to Columbus's patron Queen IsabellaI of Castile. Isabela and nearby Fernandina Islandhonoring Isabella's husband FerdinandII of Aragonalso preserve the names bestowed on the third and fourth islands encountered by Columbus during his voyage. The former English name Duke of Albemarl's Island or Albemarle Island was bestowed by English buccaneer Ambrose Cowley in 1684 in honor ...
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Fernandina Island
Fernandina Island () is the youngest and third largest island in the Galápagos, as well as the furthest west. It has an area of and a height of , with a summit caldera about wide. It is younger than Isabela, being only less than one million years old since its formation. Like the other islands, it was formed by the Galápagos hotspot. The island is an active shield volcano that has most recently erupted in March 2024. Names Fernandina is named in honor of King FerdinandII of Aragon, one of the sponsors of Christopher Columbus's voyages. It was formerly known in Spanish as Isla de Plata ("Silver Island") and in English as Narbrough or Narborough Island, honoring Admiral John Narborough who commanded a British Navy squadron in the West Indies. The name was bestowed by the English pirate William Ambrosia Cowley in 1684 and preserved for centuries thereafter. Geography Ferdandina is the youngest and third largest island in the Galápagos, as well as the furthest west. It ...
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Locule
A locule (: locules) or loculus (; : loculi) is a small cavity or compartment within an organ or part of an organism (animal, plant, or fungus). In angiosperms (flowering plants), the term ''locule'' usually refers to a chamber within an ovary (gynoecium or carpel) of the flower and fruits. Depending on the number of locules in the ovary, fruits can be classified as (uni-locular), , , or . The number of locules present in a gynoecium may be equal to or less than the number of carpels. The locules contain the ovules or seeds. The term may also refer to chambers within anthers containing pollen. In ascomycetous fungi, locules are chambers within the hymenium The hymenium is the tissue layer on the hymenophore of a fungal fruiting body where the cells develop into basidia or asci, which produce spores. In some species all of the cells of the hymenium develop into basidia or asci, while in oth ... in which the perithecia develop. References Plant anatomy Plant ...
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Seed
In botany, a seed is a plant structure containing an embryo and stored nutrients in a protective coat called a ''testa''. More generally, the term "seed" means anything that can be Sowing, sown, which may include seed and husk or tuber. Seeds are the product of the ripened ovule, after the embryo sac is fertilization, fertilized by Pollen, sperm from pollen, forming a zygote. The embryo within a seed develops from the zygote and grows within the mother plant to a certain size before growth is halted. The formation of the seed is the defining part of the process of reproduction in seed plants (spermatophytes). Other plants such as ferns, mosses and marchantiophyta, liverworts, do not have seeds and use water-dependent means to propagate themselves. Seed plants now dominate biological Ecological niche, niches on land, from forests to grasslands both in hot and cold climates. In the flowering plants, the ovary ripens into a fruit which contains the seed and serves to disseminate ...
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Pericarp
Fruits are the mature ovary or ovaries of one or more flowers. They are found in three main anatomical categories: aggregate fruits, multiple fruits, and simple fruits. Fruitlike structures may develop directly from the seed itself rather than the ovary, such as a fleshy aril or sarcotesta. The grains of grasses are single-seed simple fruits wherein the pericarp and seed coat are fused into one layer. This type of fruit is called a caryopsis. Examples include cereal grains, such as wheat, barley, oats and rice. Categories of fruits Fruits are found in three main anatomical categories: aggregate fruits, multiple fruits, and simple fruits. Aggregate fruits are formed from a single compound flower and contain many ovaries or fruitlets. Examples include raspberries and blackberries. Multiple fruits are formed from the fused ovaries of multiple flowers or inflorescence. An example of multiple fruits are the fig, mulberry, and the pineapple. Simple fruits are formed from ...
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Gland (botany)
In plants, a gland is defined functionally as a plant structure which secretes one or more products. This may be located on or near the plant surface and secrete externally, or be internal to the plant and secrete into a canal or reservoir. Examples include glandular hairs, nectaries, hydathodes, and the resin canals in Pinus. Notable examples Salt glands of the mangrove The salt glands of mangroves such as '' Acanthus'', '' Aegiceras'', '' Aegialitis'' and ''Avicennia'' are a distinctive multicellular trichome, a glandular hair found on the upper leaf surface and much more densely in the abaxial indumentum. On the upper leaf surface they are sunken in shallow pits, and on the lower surface they occur scattered among long nonglandular hairs composed of three or four cells. Development of the glands resembles that of the nonglandular hairs until the three-celled stage, when the short middle stalk cell appears. The salt gland continues to develop to produce two to four vacu ...
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Berry
A berry is a small, pulpy, and often edible fruit. Typically, berries are juicy, rounded, brightly colored, sweet, sour or tart, and do not have a stone or pit although many pips or seeds may be present. Common examples of berries in the culinary sense are strawberries, raspberries, blueberries, blackberries, white currants, blackcurrants, and redcurrants. In Britain, soft fruit is a horticultural term for such fruits. The common usage of the term "berry" is different from the scientific or botanical definition of a berry, which refers to a fleshy fruit produced from the ovary of a single flower where the outer layer of the ovary wall develops into an edible fleshy portion( pericarp). The botanical definition includes many fruits that are not commonly known or referred to as berries, such as grapes, tomatoes, cucumbers, eggplants, bananas, and chili peppers. Fruits commonly considered berries but excluded by the botanical definition include strawberries, raspber ...
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