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Glaucous
About these coordinates About these coordinates
— Color coordinates —
Hex triplet #6082B6
RGBB (r, g, b) (96, 130, 182)
HSV (h, s, v) (216°, 47%, 71%)
Source ISCC-NBS
B: Normalized to [0–255] (byte)
Wine grapes with glaucous coating
Glaucous Gull
Plums with some glaucous coating visible
Cryptocarya glaucescens with a glaucous under-leaf

Glaucous (from the Latin glaucous, meaning "bluish-grey or green", from the Greek glaukos) is used to describe the pale grey or bluish-green appearance of the surfaces of some plants, as well as in the names of birds, such as the Glaucous Gull (Larus hyperboreus), Glaucous-winged Gull (Larus glaucescens), Glaucous Macaw (Anodorhynchus glaucus), and Glaucous Tanager (Thraupis glaucocolpa). The term glaucous is also used botanically as an adjective to mean "covered with a greyish, bluish, or whitish waxy coating or bloom that is easily rubbed off" (e.g. glaucous leaves).

The first recorded use of glaucous as a color name in English was in the year 1671. [1]

Contents

Examples

The epicuticular wax coating on mature plum fruit gives them a glaucous appearance. Another familiar example is found in the common grape genus (Vitis vinifera). Some cacti have a glaucous coating on their stem(s). Glaucous coatings are hydrophobic, prevent wetting by rain, and hinder climbing of leaves, stem or fruit by insects. On fruits, glaucous coatings may function as a deterrent to climbing and feeding by small insects in favor of increased seed dispersal offered by larger animals such as mammals and birds.

See also

References

  1. ^ Maerz and Paul A Dictionary of Color New York:1930 McGraw-Hill Page 195; Color Sample of Glaucoous Blue: Page 95 Plate 36 Color Sample I3 (The color identified as "Glaucous Blue" in this color sample matches the color in the color display above.)

External links

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1911 encyclopedia

Up to date as of January 14, 2010

From LoveToKnow 1911

GLAUCOUS (Gr. yXauuos, bright, gleaming), a word meaning of a sea-green colour, in botany covered with bloom, like a plum or a cabbage-leaf.


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