Luma (plant)

Luma is a genus of flowering plants in the myrtle family Myrtaceae, described as a genus in 1853. It is native to the Valdivian temperate rain forests of Chile and Argentina.

They are shrubs or small trees with evergreen foliage and smooth red or orange bark, typically reaching 10–20 m (33–66 ft) tall and up to 1 m (3 ft) in trunk diameter. The leaves are opposite, oval, 1–5 cm long and 0.5–3 cm broad, entire, glossy dark green, with a spicy scent if crushed. The flowers are 2 cm diameter with four white petals and numerous stamens; the fruit is a small purple or black berry 1 cm diameter.

The genus name derives from the Mapuche (Native American) name for a related species, Amomyrtus luma.

A long list of over 100 other names have been proposed in the genus, nearly all of them now regarded as members of other genera: Blepharocalyx, Eugenia, Myrceugenia, etc.

Plant

Plants, also called green plants, are multicellular eukaryotes of the kingdom Plantae. They form an unranked clade Viridiplantae (Latin for green plants) that includes the flowering plants, conifers and other gymnosperms, ferns, clubmosses, hornworts, liverworts, mosses and the green algae. Green plants excludes the red and brown algae, the fungi, archaea, bacteria and animals.

Green plants have cell walls with cellulose and obtain most of their energy from sunlight via photosynthesis by primary chloroplasts, derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic and have lost the ability to produce normal amounts of chlorophyll or to photosynthesize. Plants are also characterized by sexual reproduction, modular and indeterminate growth, and an alternation of generations, although asexual reproduction is also common.

Precise numbers are difficult to determine, but as of 2010, there are thought to be 300–315 thousand species of plants, of which the great majority, some 260–290 thousand, are seed plants (see the table below). Green plants provide most of the world's molecular oxygen and are the basis of most of the earth's ecologies, especially on land. Plants that produce grains, fruits and vegetables form mankind's basic foodstuffs, and have been domesticated for millennia. Plants are used as ornaments and, until recently and in great variety, they have served as the source of most medicines and drugs. The scientific study of plants is known as botany, a branch of biology.

Plantà

The plantá (which comes from the verb to plant; in Valencian, plantà) is the act of erecting a Falla or bonfire monument, in the Fallas or the Bonfires of Saint John, festivals held respectively in March and June in different localities of the Community of Valencia (Spain).The plantà is currently considered the exact moment when the falla or bonfire is completely finished and ready to be visited, with all its “ninots” (human figures made of combustible materials, such as cardboard or wood, which has a critical or mocking nature), posters and a variety of features (lights, matted grass, interpretive signs...).

In the Fallas of Valencia, the plantá takes place on March 15, when all the Falla monuments must be positioned correctly. The reason is that the jury appointed by the Central Fallera committee has to go to the next day to assess the falla. Formerly, the plantà began and ended the same day but, due to the complexity of the monuments and the fact that the makers of Fallas are responsible for several Fallas monuments at the same time, it usually begins a few days before. The burning of the Falla or cremá is carried out four days later, on the night of March 19.

Plant (disambiguation)

A plant is a living organism that generally does not move and absorbs nutrients from its surroundings.

Plant may also refer to:

In manufacturing and engineering

In media and entertainment

In names

Luma (video)

In video, luma represents the brightness in an image (the "black-and-white" or achromatic portion of the image). Luma is typically paired with chrominance. Luma represents the achromatic image, while the chroma components represent the color information. Converting R'G'B' sources (such as the output of a 3CCD camera) into luma and chroma allows for chroma subsampling: because human vision has finer spatial sensitivity to luminance ("black and white") differences than chromatic differences, video systems can store chromatic information at lower resolution, optimizing perceived detail at a particular bandwidth.

Luma versus luminance

Luma is the weighted sum of gamma-compressed R'G'B' components of a color video – the prime symbols (') denote gamma-compression. The word was proposed to prevent confusion between luma as implemented in video engineering and luminance as used in color science (i.e. as defined by CIE). Luminance is formed as a weighted sum of linear RGB components, not gamma-compressed ones. Even so, luma is erroneously called luminance.SMPTE EG 28 recommends the symbol Y' to denote luma and the symbol Y to denote luminance.

List of Mario franchise characters

The Mario franchise is a series of video games developed and published by Nintendo. The franchise features an extensive cast of characters.

For the main characters that appear under the franchises of spinoff series Donkey Kong and Wario, please refer to list of Donkey Kong characters and list of Wario characters.

All supporting characters and antagonists are listed in alphabetical order.

Main characters

Mario

Luigi

Princess Peach

Yoshi

Toad

Donkey Kong

Supporting characters

Baby Luma

Baby Luma (ベビィチコ, Bebi Chiko) is Mario's main companion in Super Mario Galaxy and its direct sequel Super Mario Galaxy 2.

In Super Mario Galaxy Baby Luma first finds Mario sleeping in the planet that houses the Gateway to the Starry Sky after he has been blasted out of the Mushroom World, and joins him at the request of Rosalina, aiding him in his quest to rescue Princess Peach from Bowser by allowing him to use the "Spin" move, which he can use to break crystals, attack enemies and further his jumps, among other things. In the ending of the game, Baby Luma sacrifices his life along his brethren to save the universe from a black hole.

Luma (moth)

Luma is a genus of moths of the Crambidae family.

Species

References

External links