References from the California Lichen Catalog

HASSE, H. E. 1898a.

Lichens of Southern California. Los Angeles.

HERRE, A. W. C. T. 1911b.

The Gyrophoraceae of California. Contributions from the United States National Herbarium 13: 313–321; plates 68–73.

ORCUTT, C. R. 1909.

Botany of southern California. Lichens. American Plants, 2: 400–401.