stroma_position_close
dense
near-surface texture 0.2-0.3 mm thick dense carbonaceous wall; spaces between columns filled with fibrous texture; between perithecial locules a thin carbonaceous layer surrounds each perithecium with a fibrous matrix; texture under perithecia about 0.5 mm thick, arranged like near-surface texture
Theissenia rogersii
Durotheca rogersii