Niebla and Vermilacinia (Ramalinaceae) from California and Baja California.  
Spjut, R.W., 1996. ISSN 0833-1475, 208 pp.  
Sida, Botanical Miscellany 14. Botanical Research Institute of Texas, Inc.

San Nicolas Island CA,
Timbrook & Kuizenga 728,
Mar 1983 (SBBG)

Map showing geographical occurrence

San Nicolas Island, CA
Foreman (COLO: L-44277)
Apr 1966, Holotype

   Niebla dactylifera is a lichen known only from San Nicolas Island.  It is distinct for its finger-like branchlets that arise from broad fan-like segments.  Niebla dissecta, a related sekikaic-acid species in the Channel Islands, and also mainland California, is generally more dichotomously and diffusely branched from less dilated segments.  Images of N. dactylifera are on CalPhotos.