Lichen

A lichen is a composite organism that arises from algae or cyanobacteria (or both) living among filaments of a fungus in a symbiotic relationship. The combined life form has properties that are very different from the properties of its component organisms. Lichens come in many colors, sizes, and forms. The properties are sometimes plant-like, but lichens are not plants. Lichens may have tiny, leafless branches (fruticose), flat leaf-like structures (foliose), flakes that lie on the surface like peeling paint (crustose), or other growth forms. A macrolichen is a lichen that is either bush-like or leafy; all other lichens are termed microlichens. Here, "macro" and "micro" do not refer to size, but to the growth form.Common names for lichens may contain the word "moss" (e.g., "Reindeer moss", "Iceland moss"), and lichens may superficially look like and grow with mosses, but lichens are not related to mosses or any plant. Lichens do not have roots that absorb water and nutrients as plants do but like plants they produce their own food by photosynthesis using sunlight energy, from carbon dioxide, water and minerals in their environment. When they grow on plants, they do not live as parasites and only use the plants as a substrate.

Lichen (disambiguation)

Lichen is a type of symbiotic organism.

Lichen may also refer to:

  • Licheń Stary, a village in central Poland
  • Sanctuary of Our Lady of Licheń, a large church at Licheń Stary
  • Licheń, Lubusz Voivodeship, a village in western Poland
  • Lichen planus, an inflammatory disease
  • Lichen sclerosus, a skin disease
  • Lichen simplex chronicus, a skin disease
  • Asphodelus albus, sometimes called white lichen
  • Lichens (musician), Robert Lowe's solo musical project
  • "Lichen", a song by Aphex Twin.
  • See also

  • Lich, an undead creature
  • lychgate
  • Lic (disambiguation)
  • Lich, Germany
  • Long Island College Hospital, a teaching hospital situated in Cobble Hill section of Brooklyn, New York
  • Lycan (disambiguation)
  • Li Chen (disambiguation)
  • Licheń Stary

    Licheń Stary [ˈlixɛɲ ˈstarɨ] is a village in the administrative district of Gmina Ślesin, within Konin County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 7 kilometres (4 mi) south-east of Ślesin, 14 km (9 mi) north-east of Konin, and 99 km (62 mi) east of the regional capital Poznań. The village has a population of 1,100.

    The village's name means "old Licheń"; it is often referred to as simply Licheń.

    Licheń Stary is the site of Poland's largest church, Sanctuary of Our Lady of Licheń, completed in 2004, which houses icon of the Virgin Mary called Our Lady of Sorrows, Queen of Poland. The sanctuary was constructed to accommodate the large number of pilgrims who come to venerate the image of the Virgin Mary, which according to tradition has been miraculous.

    References


    Coordinates: 52°19′24″N 18°21′36″E / 52.32333°N 18.36000°E / 52.32333; 18.36000

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    Lipella Reports Positive Phase 2a Results from Second LP-310 Cohort in Oral Lichen Planus;

    The Eagle-Tribune 22 Apr 2025
    Second Cohort Results Highlight Efficacy Across All Key Measures and Reinforce Safety of Twice-Daily Oral Rinse ... .
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    Lichens can survive almost anything, and some might survive Mars

    Ars Technica 19 Apr 2025
    Despite the red planet’s brutality, lichens that inhabit some of the harshest environments on Earth could possibly survive there. Lichens are symbionts, or two organisms that are in a cooperative relationship.
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    Lichens and tiger beetles and beeches – oh my! Share your sightings for the City Nature Challenge. (City of Ottawa)

    Public Technologies 17 Apr 2025
    ) Our city has remarkable biodiversity - a true richness of plant and animal life ... [...]. This is an abstract of the document ... Disclaimer ... (noodl. 123726856) .
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    A step closer to Martian habitability as lichens endure simulated surface conditions

    SpaceDaily 10 Apr 2025
    The research, published in IMA Fungus, offers compelling evidence that lichens could ...
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    Report Of Foreign Private Issuer (Form 6-K) (Lichen International Ltd)

    Public Technologies 04 Apr 2025
    ). On April 2, 2025, Ms. Lourdes Felix tendered her resignation as a director and the Chair of the Audit Committee of Lichen International Limited (the "Company"), effective April 2, 2025. Ms ... On April 2, 2025, Mr ... Mr ... 2 ... Lichen International Ltd.
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