San Diego County, California, US
While taking a walk through the ravine South of campus between Kings Chair and the water tank, I came across this fungus. The fungus was growing on many of the tree branches in the ravine. They were all shaded from the leaves that were now growing.
This was at Lord's bush. This is some of the last remaining forest on the Canterbury Plain. The temperate was fairly warm with minimal wind.
Causing anthracnose on lupinus Albifrons
Growing on bark on the trunk of Quercus agrifolia. Looks like a lichen, but per Jason Hollinger, apparently not. @leptonia, do you have literature with keys on this? Spores are 28-33 x 9-12.5 um.
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.