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Ultraviolet ( UV) light is electromagnetic radiation of wavelengths of 10–400 nanometers, shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun. It is also produced by electric arcs, Cherenkov radiation, and ...
Erythronium dens-canis, the dog's-tooth-violet [2] or dogtooth violet, is a bulbous herbaceous perennial flowering plant in the family Liliaceae, growing to 25 cm (10 in). It is native to central and southern Europe from Portugal to Ukraine. [3] It is the only naturally occurring species of Erythronium in Europe.
Erythronium, the fawn lily, trout lily, dog's-tooth violet or adder's tongue, is a genus of Eurasian and North American plants in the lily family, most closely related to tulips. The name Erythronium derives from Ancient Greek ἐρυθρός ( eruthrós ) "red" in Greek, referring to the red flowers of E. dens-canis . [7]
The lilac-breasted roller ( Coracias caudatus) is an African bird of the roller family, Coraciidae. It is widely distributed in Southern and Eastern Africa, and is a vagrant to the southern Arabian Peninsula. [1] It prefers open woodland and savanna, and it is for the most part absent from treeless places. Usually found alone or in pairs, it ...
Baptisia australis, commonly known as blue wild indigo or blue false indigo, is a flowering plant in the family Fabaceae (legumes). It is a perennial herb native to much of central and eastern North America and is particularly common in the Midwest, but it has also been introduced well beyond its natural range. [5]
A leuco dye (from the Greek λευκό leuko: white ) is a dye which can switch between two chemical forms, one of which is colorless. Reversible transformations can be caused by heat, light or pH, resulting in examples of thermochromism, photochromism and halochromism, respectively. Irreversible transformations typically involve reduction or ...
Violet gobies are generally healthy at temperatures between 76 and 78 °F (24-26 °C), with a pH between 6.5–8.5, and salinity at 1.006–1.008. Feeding [ edit ] Violet gobies are scavengers in the wild and need a varied diet for optimum health, but are limited by two factors, their small throat size and very poor vision.
Clavaria zollingeri. Clavaria zollingeri, commonly known as the violet coral or the magenta coral, is a widely distributed species of fungus. It produces striking tubular, purple to pinkish-violet fruit bodies that grow up to 10 cm (3.9 in) tall and 7 cm (2.8 in) wide. The extreme tips of the fragile, slender branches are usually rounded and ...