Parmelia


Also found in: Dictionary, Thesaurus, Wikipedia.

Parmelia

 

a genus of lichens of the family Parmeliaceae. The foliaceous thallus has incised lobes and is whitish gray or yellowish green to dark brown. The lichen is loosely or closely attached to its substrate. There are approximately 700 species, distributed primarily in the tropics. Several species, including P. vagans and P. taractica, contain usnic acid, which has antibiotic properties. A number of species, such as P. saxatillis and P. conspersa, were formerly used as dyes.

Mentioned in ?
References in periodicals archive ?
2004) a non-cetrarioid lichen Parmelia tinctorum containing atranorin, nonstictic acid and salazinic acid produced for antibiotics WO2006125857 A polymer blend based from Reijonen (2006) lichen polysaccharides and other polymers for capsule coatings, etc.
Freitas MC, Reis MA, Alves LC and Wolterbeek HT (1999) Distribution in Portugal of some pollutants in the lichen Parmelia sulcata.
For that reason, the aim of present investigation is to estimate the antioxidant, antimicrobial and anticancer activities of the lichens Parmeliopsis ambigua, Parmelia pertusa and Hypogymnia physodes.
Parmelia sulcata lichen transplants positioning towards wind direction (Part II): element concentrations and relationships with atmospheric element deposition.
The core chapters look at grain-size effects on PIXE and INAA analysis of IAEA-336 lichen reference material; cell-membrane damage and elements leaching in transplanted Parmelia sulcata lichen related to ambient SO in, temperature, and precipitation; transplant set-ups and positioning towards wind direction: element concentrations and relationships with atmospheric element deposition; and a biomonitoring study of Setubal Peninsula region, Portugal.
Hill (1994a) found that, in Parmelia sulcata, the number of cell divisions required for the photobiont to populate a young lobe of 2 [mm.
Table 7: Band 2 and Band 6 suburbs, Perth Highest Lowest relative relative deprivation deprivation (band 6) (band 2) Armadale Dalkeith Balga Subiaco Bentley Calista Crawley Girrawheen Karawara Koondools Kwinana Beach Medina Midvale Mirrabooka Murdoch Parmelia Two Rocks
Upper cortex with white angular markings; margins of lobes eciliate, lobes with squared ends, 2-5 mm wide, rhizines to margin PARMELIA 12.
He was born in Ottawa, Wisconsin, on April 21, 1862, one of eight children, to James McLaren Forbes, of Scotland, and Lucinda Parmelia Sanders Forbes, of New York.
Freitas MC, Reis MA, Marques AP, Wolterbeek HTh (2000) Dispersion of chemical elements in an industrial environment studied by monitoring using Parmelia sulcata.
Sturgeon, of Parmelia Court, Perth, admitted a second charge of resisting Constable Julia Wright and special constable Col in Carnduff by lashing out with her arms and legs.
A comparison study on Hypneum cupressiforme and Parmelia caperata in a former mining district in Italy.