crust lichens

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• Lichens of Maryland — The following list of Lichens of Maryland is derived from the following sources: *(1) lichens listed in the 1977 publication by Skorepa (Allen C. Skorepa), Norden [http://www.pwrc.usgs.gov/resshow/perry/bios/NordenArnold.htm] , and Windler. *(2)… …   Wikipedia

• cryptogamic crust —    A type of microbiotic crust consisting of a thin, biotic layer at the ground surface composed predominantly of cryptogams (i.e., algae, lichen, mosses, lichens and liverworts); most commonly found in semiarid or arid environments.    Compare:… …   Glossary of landform and geologic terms

• Soil crust — A soil crust is a layer of soil whose particles cohere because of organic material including live organisms and what they produce.[1] References ^ crust101.htm Introduction to Biological Soil Crusts, Canyonlands Research Station External… …   Wikipedia

• Pilophorus acicularis — Scientific classification Kingdom: Fungi Division …   Wikipedia

• fungus — fungic /fun jik/, adj. funguslike, adj. /fung geuhs/, n., pl. fungi /fun juy, fung guy/, funguses, adj. n. 1. any of a diverse group of eukaryotic single celled or multinucleate organisms that live by decomposing and absorbing the organic… …   Universalium

• Precambrian time — Interval of geologic time from с 3. 8 billion years ago, the age of the oldest known rocks, to 544 million years ago, the beginning of the Cambrian Period. This interval represents more than 80% of the geologic record and thus provides important… …   Universalium

• Antarctica — /ant ahrk ti keuh, ahr ti /, n. the continent surrounding the South Pole: almost entirely covered by an ice sheet. ab. 5,000,000 sq. mi. (12,950,000 sq. km). Also called Antarctic Continent. * * * Antarctica Introduction Antarctica Background:… …   Universalium

• Cryptothecia rubrocincta — Growing on guayaibi (Patagonula amaricana) tree in Chaco Province, northern Argentina Scientific classification Kingdom …   Wikipedia

• Lichen — For other uses, see Lichen (disambiguation). Lichenes from Ernst Haeckel s Artforms of Nature, 1904 …   Wikipedia

• Asia — /ay zheuh, ay sheuh/, n. a continent bounded by Europe and the Arctic, Pacific, and Indian oceans. 2,896,700,000; ab. 16,000,000 sq. mi. (41,440,000 sq. km). * * * I Largest continent on Earth. It is bounded by the Arctic Ocean, the Pacific Ocean …   Universalium

• Europe — /yoor euhp, yerr / for 1; /yoo roh pee, yeuh / for 2, n. 1. a continent in the W part of the landmass lying between the Atlantic and Pacific oceans, separated from Asia by the Ural Mountains on the E and the Caucasus Mountains and the Black and… …   Universalium