Private Herbarium of Jason Hollinger (hb. Hollinger)
Homostegia piggotii (Berk. & Broome) P. Karst.
Dothideomycetes_family_incertae_sedis
Jason Hollinger (2019-09-08)
ID certainty: positive
Jason Hollinger
23626
2019-09-08
Carl-Adam Wegenschimmel, Perry Scott
Canada, Ontario, Sleeping Giant Provincial Park, Thunder Mountain talus
48.3514 -88.8797 +-5m.
370 meters (1214ft)
top of small N-facing diabase talus field under eaves of forest
_Parmelia saxatilis_ on diabase talus
perithecia immersed entirely inside carbonized black stroma on host thallus, ~125-200um; centrum I+r, filled with ~3-4um hyaline globose oil drops?; hamathecium present, slender and anastomosing; spores 8 per ascus, brown, 3-septate, ovate, constricted a bit at septae, ~18-20x8um