Irish lichens

Physconia enteroxantha

Order: Lecanorales       Family: Physciaceae

Species: Physconia enteroxantha

Growth type foliose.
Photos: On ornamental maple. Macroom, Co. Cork, SW Ireland.
Specimen identified by John Douglass

Thallus outline irregular, rarely orbicular. Small, +/- overlapping greyish or green-brown lobes, +/- pruinose. Secondary lobules sometimes present in mature specimens. Marginal +/- yellowish soralia. Lower surface brown to black with numerous black rhizines. Medulla dull yellow. Apothecia very rare.

Found on well-lit, nutrient-rich bark of parkland and roadside trees. Most frequent in north and east of Ireland. Medulla K+ yellow

Similar: Physconia distorta with frequent apothecia and Physconia perisidiosa, isidiate, medulla negative.


Physconia enteroxantha


Physconia enteroxantha


Physconia enteroxantha
Physconia enteroxantha. February and October 2009

All images used are copyright. Please contact me if you find errors.