A symbiotic partnership between a fungus with an algae and/or a cyanobacteria; lichens are often described as "organisms" when in fact they are a community of 2 or 3 species Some lichens live on rocks, where they appear as paintspots, whereas others are fibrous and drape from trees or form dense ground cover Several of the fibrous species are staples in the diet of caribou
- A composite plant comprised of an ALGA and a FUNGUS growing together in an intimate association Lichens are often found in patches on tree trunks, bare ground , rocks and walls They can be sensitive INDICATORS of POLLUTION
the common name for any member of the group Lichenes, occurring as fungal and algae cells in symbiotic union and growing in various forms of rocks or trees (Morris 1992)
Any of various small plants composed of a particular fungus and a particular algae growing in an intimate symbiotic association and forming a dual plant, commonly adhering in colored patches of sponge-like branches to rock, wood, soil, etc
to one characterized by the eruption of small, conical or flat, reddish pimples, which, if unchecked, tend to spread and produce great and even fatal exhaustion
a composite plant made up of a fungus and an algae usually black, but can be gray or orange; grows slowly, often on boulders the oldest plants in the mountains - some dating back 11,000 years lichen covered boulders can be extremely slippery when wet
The species are very widely distributed, and form irregular spots or patches, usually of a greenish or yellowish color, upon rocks, trees, and various bodies, to which they adhere with great tenacity
this "plant" consists of two different types of living things that live together, each benefiting the other One is algae, a small one-celled plant that can make use of energy from the sun The other is a fungus that takes nutrients from the air, rocks or other plants for the algae to use
n: A symbiotic relationship between a fungus and a moss The moss does most of the work, producing sugars for the lichen's collective metabolic pathways Lichen are generally low-growing, vary in color from bright orange or yellow to gray or black, and are often found growing on rocks and tree bark An easy mnemonic to assist recall of the nature of a lichen's symbiosis is: "A fungus took a likin' to a moss, and now they live together "
Organisms made up of algae living in the threads of a fungus The algal cells benefit from the protection and water-retaining properties of the fungus; the fungus benefits from being able to share the food made by the photosynthesising algal cells
One of a class of cellular, flowerless plants, (technically called Lichenes), having no distinction of leaf and stem, usually of scaly, expanded, frond-like forms, but sometimes erect or pendulous and variously branched
1 a composite organism consisting of a fungus (the mycobiont) and an alga and/or a cyanobacteria (the phycobiont) that live in a symbiotic relationship As cited in
Lichen is a group of tiny plants that looks like moss and grows on the surface of things such as rocks, trees, and walls. a grey, green, or yellow plant that spreads over the surface of stones and trees moss (leichen). Any of about 15,000 species of small, colourful, scaly plants that consist of a symbiotic association of algae (usually green) and fungi (see fungus). These extremely hardy, slow growers often are pioneer species in sparse environments such as mountaintops and the far North. Fungal cells, anchored to the substrate with hairlike growths (rhizines), form the base. In the body (thallus), numerous algal cells are distributed among fewer fungal cells. Through photosynthesis the algal cells provide simple sugars and vitamins for both partners in this symbiotic association. The fungal cells protect the algal cells from environmental extremes. Lichens may form a thin, crustlike, tightly bound covering over their substrate (e.g., cracks in rocks), or they may be small and leafy, with loose attachments to the substrate. Their colours range from brown to bright orange or yellow. In far northern Europe and Asia, lichens provide two-thirds of caribou and reindeer food. They have been the source of medicines and dyes