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Common Blue Violet (Viola sororia) color variant. Viola sororia is a short-stemmed, herbaceous perennial plant that grows in well-drained and shady habitats. [ 5 ] This 15–25 centimeters (6–10 in) wide violet has glossy, heart-shaped leaves and are topped with purple flowers with white throats. The lower three petals are hairy and the stem ...
Narcissus in culture – uses of narcissus flowers by humans. Lime tree in culture – uses of the lime (linden) tree by humans. Rose symbolism – a more expansive list of symbolic meanings of the rose. Apple (symbolism) – a more expansive list of symbolic means for apples.
Asystasia multiflora Klotzsch. Asystasia ansellioides C.B.Clarke var. lanceolata Fiori. Asystasia podostachys Klotzsch[1] Asystasia gangetica is a species of plant in the family Acanthaceae. It is commonly known as the Chinese violet, coromandel[2] or creeping foxglove. [3] In South Africa this plant may simply be called asystasia.
Calcofluor-white. Appearance. Calcofluor-white or CFW is a fluorescent blue dye used in biology and textiles. It binds to 1–3 beta and 1–4 beta polysaccharides of chitin and cellulose that are present in cell walls on fungi, plants, and algae. The fluorescent staining of yeast with calcofluor-white. The cell walls fluoresce to a vivid blue ...
Anthocyanins (from Ancient Greek ἄνθος (ánthos) 'flower' and κυάνεος / κυανοῦς (kuáneos/kuanoûs) 'dark blue'), also called anthocyans, are water-soluble vacuolar pigments that, depending on their pH, may appear red, purple, blue, or black. In 1835, the German pharmacist Ludwig Clamor Marquart named a chemical compound ...
On the RGB/CMY color wheel, violet is located between blue and magenta. Violet is closely associated with purple. In optics, violet is a spectral color (referring to the color of different single wavelengths of light), whereas purple is the color of various combinations of red and blue (or violet) light, [5] [6] some of which humans perceive as ...
Fluorescence is one of two kinds of emission of light by a substance that has absorbed light or other electromagnetic radiation. When exposed to ultraviolet radiation, many substances will glow (fluoresce) with colored visible light. The color of the light emitted depends on the chemical composition of the substance.
The study of limnology includes aspects of the biological, chemical, physical, and geological characteristics of fresh and saline, natural and man-made bodies of water. This includes the study of lakes, reservoirs, ponds, rivers, springs, streams, wetlands, and groundwater. [2] Water systems are often categorized as either running (lotic) or ...