References from the California Lichen Catalog

HUE, A. M. 1891.

Lichens exoticos a professore W. Nylander descriptos vel recognitos et in herbario musei Parisiensis pro maxima parte assertavos in ordine systematico disposuit. Nouvelles archives du Muséum d'histoire naturelle, Series 3, 3: 33–192.

TUCKER, S. C., & W. P. JORDAN. 1979 (1978).

A catalog of California lichens. Wasmann Journal of Biology 36: 1–105.