References from the California Lichen Catalog
- EKMAN, S. 1996.
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The corticolous and lignicolous species of Bacidia and Bacidina in North America.
Opera Botanica 127: 1–148.
- TUCKERMAN, E. 1888.
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A synopsis of the North American Lichens, Pt. 2, comprising of the Lecidacei, and (in part) the Graphidacei.
E. Anthony & Sons, Printers, New Bedford. 176 pp.
Complete references section