Pincushion Sunburst Lichen - Xanthoria polycarpa
Xanthoria polycarpa is a lichenized fungi with foliose thallus (the vegetative body) forming small cushions up to 3 cm wide or larger colonies, with short and narrow, convex lobes, frequently almost completely covered with apothecia (the fruiting bodies, cup-like in this species).
Xanthoria polycarpa is widespread on nutrient-enriched trees, especially on small twigs where it forms clusters of apothecia in axils of branches; becoming common as an indicator of nitrogen deposition.
This species has circumpolar distribution extending into temperate regions. It is very widespread and, because of its bright yellow-orange color, easy to identify.
[Fungi - Ascomycota - Lecanoromycetes - Teloschistales - Teloschistaceae - Xanthoria - Xanthoria polycarpa (Hoffm.) Th. Fr. ex Rieber]