Private Herbarium of Jason Hollinger (hb. Hollinger)
Verrucaria margacea (Wahlenb.) Wahlenb.
Verrucariaceae
Jason Hollinger (2019-09-07)
ID certainty: uncertain
Jason Hollinger
23579
2019-09-07
2019 Tuckerman Workshop
Canada, Ontario, Sleeping Giant Provincial Park, Tee Harbour
48.3144 -88.8877 +-5m.
185 meters (607ft)
open, low, S-facing diabase cliff on lakeshore
diabase
thallus pale brown, rimose-continuous; perithecia protruding quite a bit, ~220um wide (exciple); involucrellum extending most of the way to the base and spreading near the bottom, ~40-60um thick laterally; spores 8 per ascus, ~25x10um