References from the California Lichen Catalog

ARAGON, G., I. MARTINEZ, & M. A. G. OTALORA. 2004.

The lichen Leptogium subaridum, a new Mediterranean-NW American disjunction. Lichenologist 36: 163–165.

CARLBERG, T. 2003.

Pacific Northwest lichens in northern California. Bulletin of the California Lichen Society 10: 7–8.