On pines albicaulis - perhaps H. juniperi - or Neopeckia?
growing on Black Cherry Prunus serotina
also see http://mushroomobserver.org/24926
growing on a tomato.
Growing in wet mixed duff. Some appeared to be emerging from Redwood needles, but difficult to determine. The first image shows some that were emerging from a rotten Rhododendron (?) twig. Other options are California-Bay Laurel (Umbellularia californica) and Coast Live Oak (Quercus agrifolia) leaves.
>CSALVA231_UCSC-F-00120_Anthina sp_8 Dec 2014_UC Santa Cruz, California, USA_
Part of specimen will be sent to Joey Tanney
Dothideomycetes is the largest and most diverse class of ascomycete fungi. It comprises 11 orders 90 families, 1300 genera and over 19,000 known species. Traditionally, most of its members were included in the loculoascomycetes, which is not part of the currently accepted classification. This indicates that several traditional morphological features in the class are not unique and DNA sequence comparisons are important to define the class.