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         Lichens:     more books (100)
  1. River-Walking Songbirds & Singing Coyotes: An Uncommon Field Guide to Northwest Mountains by Patricia K. Lichen, 2001-06-01
  2. The Lichens
  3. Monitoring with Lichens - Monitoring Lichens (NATO SCIENCE SERIES: IV: Earth and Environmental
  4. Lichens: An Illustrated Guide by Frank S. Dobson, 1992-06
  5. Lichens of California (California Natural History Guides, 54) by Mason E. Hale Jr., Mariette Cole, 1989-04-25
  6. Biology of Lichens (Contemporary Biology) by Mason E. Hale, 1983-09
  7. Lichen Planus - A Medical Dictionary, Bibliography, and Annotated Research Guide to Internet References by ICON Health Publications, 2004-04-13
  8. A Popular History of British Lichens by William Lauder Lindsay, 2010-10-14
  9. A Manual of British Lichens: Containing Descriptions of All the Species and Varieties by William Mudd, 2010-04-20
  10. Identification of Lichen Substances by Siegfried Huneck, Isao Yoshimura, 1996-08-31
  11. Lichens, An Illustrated Guide to the British and Irish Species by Frank Dobson, 2005-01-01
  12. Flora of Australia Volume 58A: Lichens 3 (Flora of Australia Series) by Australian Biological Resources Study, 2001-08
  13. The Lichen Flora of Great Britain and Ireland
  14. Flora of New Zealand: Lichens by D. J. Galloway, 1985-12

41. Lichens - Definition From The Merriam-Webster Online Dictionary
Definition of lichens from the MerriamWebster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.
http://www.merriam-webster.com/dictionary/lichens
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lichens
One entry found.
lichen
Main Entry: Pronunciation:
British also
Function:
noun
Etymology:
Latin, from Greek from leichein to lick
Date:
circa 1657
 any of several skin diseases characterized by a papular eruption  any of numerous complex plantlike organisms made up of an alga and a fungus growing in symbiotic association on a solid surface (as a rock) adjective adjective [lichen illustration] Learn more about "lichen" and related topics at Britannica.com Find Jobs in Your City Pronunciation Symbols
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42. Lichens Of North America - Brodo, Irwin M.; Sharnoff, Sylvia Duran
lichens are a unique form of plant life, the product of a symbiotic association between an alga and a fungus. The beauty and importance of lichens have long
http://yalepress.yale.edu/book.asp?isbn=9780300082494

43. Lichens - Free Music Downloads - MP3 Downloads - Download.com Music
lichens @ Download.com Music Download free legal MP3s, post reviews, and find similar artists.
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44. Nearctica - Natural History - Lichens
lichens are not true organisms, but rather represent a beneficial, symbiotic relationship between a species of fungi and a species of algae.
http://www.nearctica.com/nathist/fungi/lichens.htm
Lichens Special Segments Butterflies of North America Conifers of North America Eastern Birds List of N.A. Insects Home Eastern Wildflowers General Topics Natural History Ecology Family Environment Evolution Home Education Home Conservation Geophysics Paleontology Commercial Organizations Fun with Lichens - Lichenland . Oregon State University. This is certainly a great lichen site. You have two options; either non-technical or a more advanced approach. In either case you query a database of lichen photographs and information by choosing from a series of options based on structure, life history, color, and so forth. You can find out about each of the characters and structures of lichens by clicking on the picture associated with each rather than making a choice. The result is one or more species satisfying these characters and for each species there are both photographs and information. Natural Prospective . The Fungus Kingdom: Lichens. Art Kornfeld. This page is a tremendous, non-technical introduction to lichens with wonderful photographs and information about the biology and structure of lichens.

45. MySpace.com - THE HEAVY STEADIES - Los Angeles, California - Rock / Pop / Soul -
MySpace music profile for DAVE lichens and THE HEAVY STEADIES (SHOW FRIDAY) with tour dates, songs, videos, pictures, blogs, band information, downloads and
http://www.myspace.com/davelichens
var disableMSPLinks=1; User Shortcuts: Send Message Forward to Friend Add to Friends Add to Favorites Block User Add to Group Rank User Instant Message View User Pics View User Bulletins People MySpace Web Music Video Home Browse Search Invite ... Artist Signup
THE HEAVY STEADIES
Rock / Pop / Soul
"2 FOOTSTOMPS AND A HANDCLAP"
Los Angeles, California
United States
Profile Views: 165327
Last Login: 5/28/2008
View My: Pics Videos
Contacting THE HEAVY STEADIES
MySpace URL: http://www.myspace.com/davelichens THE HEAVY STEADIES: General Info Member Since Band Website THEHEAVYSTEADIES.COM...coming soon Band Members DAVE LICHENS KEVIN HAALAND ADAM CULVEY BRANDON CULVEY MANAGEMENT: ERIC CLINGER CLINGER MUSIC MANAGEMENT eric.clinger@sbcglobal.net Influences The Verve, Tom Petty, U2, Jeff Lynne, Richard Ashcroft, Otis Redding, Self, The Longpigs, Catherine Wheel, Pearl Jam, The Black Crowes, AC/DC, Led Zeppelin, Mitch Mitchell, Mike Campbell, your favorite band, and Jim Lichens. Sounds Like 2 FOOTSTOMPS AND A HANDCLAP My Comment Box LEAVE US A COMMENT HERE View/Edit All All of My Comments Type of Label None Upcoming Shows view all May 29 2008 THE DERBY Los Angeles, California

46. Cloudbridge Project In Costa Rica: Lichens
lichens are those crusty growth that give color to rocks and trees. The plantlike appearance of lichens hides their true identity. A lichen is not a single
http://giddy.org/cloudbridge/lichens/

Home
Notes Site Map Contact
Cloudbridge Nature Reserve Nature Notes No.
Lichens at Cloudbridge
Daniela Lizano Quesada
University of Costa Rica
Ticolichen team member.
What are Lichens?
Lichens are those crusty growth that give color to rocks and trees. The plant-like appearance of lichens hides their true identity. A lichen is not a single organism, but the result of a partnership (mutualistic symbiosis) between a fungus and a photosynthetic partner an alga or cyanobacteria. The fungi offer shelter while the algae convert light into nutrition. The body of a lichen consists of fungal filaments (hyphae) surrounding cells of green algae and/or blue-green cyanobacteria. The basis of the mutualistic symbiosis in lichens is similar to the partnership between some species of fungi (called mycorrhizia) and the roots of most rainforest trees. The lichen fungus provides its partner a benefit (protection) and gains nutrients in return.
Naturalists group lichens according to their external appearance, which is crustose (low and crusty), foliose (leafy), or fruticose (bushy). The thallus crusty, bushy, or leafy is the growing part of the organism.
The photosynthetic Lichens symbiotic with nitrogen-fixing cyanobacteria provide some forests with much of their nitrogen. Rain and mist wash soluble nitrogenous compounds from the lichens to the forest floor, where the mycorrhizal fungi in the tree roots absorb them as nutrients. Some tree species even send out roots from their branches into canopy lichens, thereby taking in fixed nitrogen directly.

47. Palomar Mtn. Lichens
DISCLAIMER Unlike vascular plants, there are very few illustrated keys to the lichens. Even with color photographs, it is practically impossible to
http://waynesword.palomar.edu/lichpal1.htm
Wayne's Word Index Noteworthy Plants Trivia ... Search Lichens of Palomar Mountain
San Diego County, California W.P. Armstrong, Life Sciences Dept., Palomar College, 1 February 2001 A list of the common lichens along the trail from Doane Valley to Lower
Doane Valley and French Valley. Some lichens of the chaparral foothills
and riparian canyons on Palomar Mt. are also included in this checklist. Verrucaria
. Many of the lichens on Palomar Mountain have enormous worldwide distributions and also occur in Europe (British Isles), Africa and South America. Many species produce microscopic soredia (clusters of algal cells intertwined with fungal hyphae). The granular soredia are produced in pustules on the surface of the lichen called soralia. Like dust particles, the soredia become airborne and travel to distant continents in one of nature's most remarkable dispersal scenarios. Isidia are small, pimplelike protuberances containing both algae and fungi which readily become detached and dispersed to new locations. Note:
In the chemical tests used on lichen thalli K = lye or sodium hydroxide (NaOH), C = Clorox

48. Removing Lichens
To clear up a common misconception, lichens do not eat the rock, rather they naturally grow on stone surfaces that are available to them, whether these
http://www.savinggraves.org/education/bookshelf/lichens.htm
Saving Graves
A collaborative effort of cemetery preservation advocates working to increase public awareness and activism in preserving, protecting and restoring endangered and forgotten historic cemeteries worldwide.
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To clear up a common misconception, lichens do not eat the rock, rather they naturally grow on stone surfaces that are available to them, whether these surfaces are naturally occurring or are artifacts of human activity. You will not be helping to preserve the stones by removing the lichen. The gray and orange patches formed by lichens on gravestones give a distinctive character to an old cemetery. These attractive "time-stains" not only enhance the appearance of the churchyard but are often of some rarity for which, like many other organisms, the cemetery is a wildlife sanctuary. Many lichens require a particular type of stone on which to live and, in many lowland districts, the cemetery may be the only undisturbed location in the area for many of these types of stones. There are differing views as to whether lichens damage the stone on which they are growing or whether they protect it. There is evidence that the acid substances produced by lichens can attack the stone, but this effect is limited to a very thin layer immediately under the lichen. Any small cracks present or caused by this process will probably be infiltrated by the fine root-like hairs (fungal hyphae) of the lichen and this may cause more damage. It has, however, been argued that any damage caused by these processes is less than would be brought about by the weather if the lichen was not present. The tough, rather thick, lichen can protect the underlying stone from the weathering effects of wind, rain and frost. On some soft stones in exposed sites the lichens may eventually cover raised areas where the surrounding stone has been eroded away by natural weathering.

49. OSU Lichen & Bryophyte Research Group
Northwest Lichen Guild. The Northwest Lichen Guild meets yearly, in conjunction with the Northwest Science Association in March.
http://oregonstate.edu/dept/botany/lichens/
13 April 1996 This site is being designed and updated by Eric B. Peterson and Eric T. Peterson . Questions, comments, or concerns about these pages can be directed to either of them.
Purposes
  • Facilitate communication
  • Provide trainings and workshops
  • Facilitate collaborative projects
Structure
The group is held together by common interests and exchange of ideas rather than by a formal organizational structure. Communication to the group can be directed through any of its members.
Publications
The group has no regular publication or newsletter. Rather, communication takes place largely through the peer-reviewed literature. Recent publications are available from the authors, or contact from Bruce McCune
Gatherings
  • Weekly seminar/discussions.
  • Northwest Lichen Guild. The Northwest Lichen Guild meets yearly, in conjunction with the Northwest Science Association in March. The mailing list for the Northwest Lichen Guild is kept by Sherry Pittam
Research Themes
  • Taxonomy and systematics of lichens and bryophytes
  • Effects of alternative forest management practices on epiphytes
  • Use of lichens as indicators of air quality
  • Conservation of rare, threatened, and endangered species

50. Lichens
a, but the rover s instruments were able to detect lichens and bacterial colonies in two areas a coastal reg and scientists found that they contained
http://www.bio-medicine.org/q/lichens/
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lichens at Biology News
Robot-based system developed at Carnegie Mellon detects life in Chile's Atacama desert
...a, but the rover's instruments were able to detect lichens and bacterial colonies in two areas: a coastal reg...and scientists found that they contained life. The lichens and bacteria in the samples are growing and awaiting analysis." Waggoner and his colleagues have de... Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils ...ces, is a paleobotanist who has reported on fossil lichens in Scotland. Lichen is a consortium of two organi...ing in more than a chance association." In modern lichens and in the 400-million-year-old Scotland fossils, the coccoidal cells provide the nutrients and the ... Freeze-dried mats of microbes awaken in Antarctic streambed ...nhabiting the area include microorganisms, mosses, lichens and a few groups of invertebrates. Study collaborators included Cathy Tate of the U.S. Geological Survey, Denver; Ned Andrews of the USGS, Boulder, Colo.; Dev Niyogi of the University of Missouri-Rolla; CU-Boulder graduate student Karen Cozetto; Cat...

51. BSA Online Image Collection, Lichens
BSA Online Image Collection, lichens. BSA Online Image Collection, lichens. Welcome to the Botanical Society of America s online image collection.
http://www.botany.org/plantimages/Lichens.php

52. Lichen-Feeding Moths As Bioindicators Of Air Pollution
Technical article discussing how lichens play prominent roles in air pollution studies because of their sensitivity to different gaseous pollutants,
http://www.colostate.edu/Depts/Entomology/courses/en570/papers_1996/simonson.htm
Lichens and Lichen-Feeding Moths (Arctiidae: Lithosiinae) as Bioindicators of Air Pollution in the Rocky Mountain Front Range

53. TPWD: Lichens -- Young Naturalist
Among the hardiest and most resistant of all plant organisms are the lichens (LIkens). These primitive plants can stand long periods of drought,
http://www.tpwd.state.tx.us/publications/nonpwdpubs/young_naturalist/plants/lich
Local Navigation Main Content Home Print Friendly ... Doing Business Search Young Naturalist Table of Contents Part IV: Earth Sciences Related Young Naturalist Links
Lichens
Among the hardiest and most resistant of all plant organisms are the lichens (LI-kens). These primitive plants can stand long periods of drought, incredible heat, and freezing temperatures, making it possible for them to live where nothing else can. Rock surfaces appear to be splashed with paint when the colorful orange star lichen or the green stud lichen cover them. Since some lichens appear to grow out of solid rock, primitive man believed that the rocks produced them. This idea was still accepted by many people until 1866, when a scientist with the aid of a microscope proved it incorrect. He discovered that the fungus part of the plant anchors the lichen to the rough surface of a bare rock with tiny threadlike growths. Rock-growing lichens play an important role in nature's plan by converting rocks into soil. They produce a weak acid which slowly dissolves the minerals, forming tiny cracks in the surface of the rock. As the tiny cracks appear, the threads of the fungus dig deeper into the rock. These threads shrink in dry weather and swell in wet weather, enlarging the cracks. During cold weather, the moisture in these cracks freezes, often breaking or splitting off pieces of the rock.

54. Institute For Field Education - Lichens
lichens are a big part of the Arctic flora. Here are a few photos of some of the species found along arctic rivers and uplands.
http://muskox.com/lichens/ms.shtml
Home Staff Bill Gould Gould Home Page ... Publications
Lichens of the Coppermine, Hood, and Thomsen Rivers, Northwest Territories, Canada
Lichens are a big part of the Arctic flora. Here are a few photos of some of the species found along arctic rivers and uplands. For more detailed information on the lichen floras of these rivers click here
Lichen links
Alpine Arnica, with Xanthoria growing on rock in background. Vulpicina pinastri , a beautiful yellow lichen,
growing on a rock along the Hood River. Peregrine falcon nest on Xanthoria covered cliff face, Artillery Lake, NWT, Canada .
Contact: Bill Gould ffwag@uaf.edu P.O. Box 1923 Boulder, CO Phone 907-474-2466 Last Updated You are visitor number [an error occurred while processing this directive] since May 20, 1997.

55. Lichens, Mosses, Fungi - Endangered, Threatened & Special Concern Species: Minne
List of Minnesota endangered, threatened and special concern lichens, mosses, fungi with their scientific and common names.
http://www.dnr.state.mn.us/ets/lichens.html

search
a-z list calendar newsroom ... Endangered species
Endangered, threatened, special concern species
Minnesota Symbols Coloring Book
Lichens Endangered Buellia nigra (Fink) Sheard a species of lichen Caloplaca parvula Wetm. a species of lichen Dermatocarpon moulinsii (Mont.) Zahlbr. a species of lichen Leptogium apalachense (Tuck.) Nyl. a species of lichen Lobaria scrobiculata (Scop.) DC. a species of lichen Parmelia stictica (Del.) Nyl. a species of lichen Pseudocyphellaria crocata (L.) Vain. a species of lichen Umbilicaria torrefacta (Lightf.) Schrad. a species of lichen Threatened Cetraria oakesiana Tuck. a species of lichen Coccocarpia palmicola a species of lichen Parmelia stuppea Tayl. a species of lichen Special concern Anaptychia setifera Rs. a species of lichen Cetraria aurescens Tuck. a species of lichen Cladonia pseudorangiformis Asah. a species of lichen Lobaria quercizans Michx. a species of lichen Peltigera venosa (L.) Hoffm. a species of lichen Sticta fuliginosa (Dicks.) Ach.

56. BC Biodiversity - Lichens Of BC
lichens of British Columbia Information and pictures on Crustose, Foliose Fruticose lichens of BC.
http://bcbiodiversity.homestead.com/lichens.html
@import url(http://www.homestead.com/~media/elements/Text/font_styles.css); What are Lichens?
Structures of Lichens
Crustose Lichens
Crustose Lichens
: Ochrolechia laevigata, Bark Barnacle (Thelotrema lepadinium), Icmadophila ericetorum, Mycoblastus sanguinarious, Dust Lichens (Lepraria species), Baeomyces rufus, Pencil Script Graphis scripta, Gold Dust Lichen Chrysothrix chlorina
Foliose Lichens
The Foliose Lichens are further divided into:
Hanging Leaf Lichens:
Antlered Perfume (Evernia prunastri), Beaded Bone (Hypogymnia enteromorpha), Forking Tube Lichen (Hypogymnia imshaugii), Tickertape Bone (Hypogymnia duplicata).
Rag and Loosely Attached Leaf Lichens

Loosely Appressed Leaf Lichens:

Fruticose Lichens

       Fruticose Lichens are radially symmetric so that the thallus is more or less round.  An outer layer of fungal cells surround the algal layer that is usually comprised of "clumps" of algal cells interspersed throughout the fungal hyphae.  Next to the algal layer is a fungal hyphae layer.  The center of the thallus may be hollow or filled with white, cottony, fungal hyphae.  Filamentous fruticose lichens take the shape of their filamentous algal symbiont. The Fruticose are further divided into: Hanging Hair Lichens: Witches Hair (Alectoria sarmentosa), Speckled Horsehair (Bryoria fuscescens), Blood Spattered Beard (Usnea wirthii), Usnea longissima,

57. Egan's Home Page
I maintain a lichen herbarium of approximately 18000 identified specimens, For more research information and a list of WWW links on lichens, click here
http://avalon.unomaha.edu/lichens/
Robert S. Egan Professor of Biology Joined UNO Faculty in 1979 Ph.D. University of Colorado- Boulder Allwine Hall 514F Office: (402) 554-2491 Home: (402) 483-7051 8010 Abigail Dr., Lincoln 68516 FAX: (402) 554-3532 e-mail: regan@mail.unomaha.edu
Teaching
Each course I teach has its own home page including the catalog description, course syllabus, sample tests, and other information. Click and explore!
Biology 1450 (Biology I)
Biology 4350 (Lichenology)
Biology 4380 (Morphology of Non-Vascular Plants)
To see information on graduate student theses (Master of Arts or Master of Science) completed under my direction, click on the button below.
Graduate Student Theses
Research
My research interests include the systematics, ecology and phytogeography of the lichen-forming fungi and other cryptogamic plants. My current research in lichen taxonomy utilizes traditional morphological approaches as well as data from TLC chemical analyses. I maintain a lichen herbarium of approximately 18,000 identified specimens, cataloged on computer databases, and have a lichen exchange program. I also maintain computer database files on more than 30,000 lichen literature references published since 1950, and developed a reference database on the North American lichens for the Natural Resources Conservation Service (USDA) at: ( http://plants.usda.gov

58. Lichens | Rock Garden FAQ | Reindeer Moss
What lichens (reindeer moss) are, and why they re important in rock gardens. Lichen (reindeer moss) is important for achieving a weathering effect in rock
http://landscaping.about.com/cs/rockgardens/f/what_is_lichen.htm
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  • 59. Lichens On Wood Plank, Costa Rica KDE-Look.org
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    60. Lichens
    lichens are organisms consisting of a fungus and a green or bluegreen alga growing together in a mutually beneficial, symbiotic, relationship.
    http://www.extension.umn.edu/yardandgarden/ygbriefs/p429lichens.html
    LICHENS ON TREES Connie Reeves
    Lichens are organisms consisting of a fungus and a green or blue-green alga growing together in a mutually beneficial, symbiotic, relationship. The entire structure, called a thallus, is so different structurally from either of its partners that microscopic examination is necessary to distinguish the fungus and the alga. The fungus obtains water and minerals from the air and the material it is growing on. The alga provides carbohydrates and vitamins. Some blue-green algae fix nitrogen that is used by both the alga and the fungus. Nitrogen is also obtained from bird excrement, organic debris, or plant leachate. Lichens may be flat, leafy, or branched and hairlike. All three forms occur on tree bark as well as on rocks, soil, and other substrates. Colors may range from white to gray, red, green, yellow, and black. Although lichens grow on tree bark, they are not parasitic (disease-causing organisms), and do not harm trees. The fact that lichens grow rapidly when exposed to full sunlight may explain their profusion on dead trees. The one conclusion that may be drawn with certainty from lichens on trees is that the air nearby is relatively pure. Most lichens will not grow in a smoky or polluted atmosphere. References: Sinclair, W.A., Lyon, H.H., and Johnson, W.T. 1987. Lichens, p. 506 In: Diseases of Trees and Shrubs. Comstock Publ. Assoc., Cornell U. Press, Ithaca, NY. 574 pp.

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