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The OPAL Page

The OPen Air Laboratory.

Photos of lichens relating to the OPAL Project

Links to the OPAL website and the OPAL Air page (relating to lichens).

Click the picture for a larger view (about 1.3Mb).

Nitrogen-sensitive

Usnea

Usnea florida
Usnea florida
Usnea subfloridana

Evernia

Evernia prunastri
Evernia prunastri

Hypogymnia

Hypogymnia physodes
Hypogymnia physodes
Hypogymnia tubulosa


Intermediate

Melanelixia

Melanelixia subaurifera

Flavoparmelia

Flavoparmelia caperata
Flavoparmelia caperata

Parmelia

Parmelia sulcata
Parmelia sulcata
Parmelia sulcata


Nitrogen-loving

Leafy Xanthoria

Xanthoria parietina
Xanthoria parietina

Cushion Xanthoria

Xanthoria polycarpa
Xanthoria polycarpa
Xanthoria polycarpa

Physcia

Physcia adscendens

Physcia tenella
Physcia tenella