Summary ²

Xanthoria parietina is a foliose, or leafy, lichen. It has wide distribution, and many common names such as common orange lichen, yellow scale, maritime sunburst lichen and shore lichen. It can be found near the shore on rocks or walls (hence the epithet parietina meaning "on walls"), and also on inland rocks, walls, or tree bark. It was chosen as a model organism for genomic sequencing (planned in 2006) by the US Department of Energy Joint...

Description ³

 A foliose lichen forming large, rounded patches up to 10 cm across, with wide, round-lipped marginal lobes. The thallus is yellowish green to greenish grey in shade but bright orange in brightly lit situations. In older specimens the centre of the thallus may die out. Lobes are long, wrinkled, over-lapping, up to 7 mm wide at the margin, and often turn up to reveal a white underside with root-like hairs. Lobes may be narrow in exposed conditions such as on the seashore. Fruiting bodies sit on the surface of the thallus and are composed of an orange disc with a paler margin, which may become crenulate. Fruiting bodes are most abundant in the centre of the thallus.Dobson (2000) suggested that Xanthoria parietina was one of the most resistant foliose lichens to air pollution.

Fuentes y créditos

1. (c) wanderflechten, algunos derechos reservados (CC BY-NC), subido por wanderflechten
2. Adaptado por CALS del trabajo de (c) Wikipedia, algunos derechos reservados (CC BY-SA), http://en.wikipedia.org/wiki/Xanthoria_parietina
3. (c)  The Marine Biological Association of the United Kingdom, algunos derechos reservados (CC BY-NC-SA), http://eol.org/data_objects/10658755

Más información

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