Terriera sigmoideospora a, b apothecia observed under the dissecting microscope c section of covering stroma d median vertical section through an apothecium e immature ascus f paraphyses and asci in various states of maturity g, h ascospores. Note: c–h mounted in water. Scale bar: 1 mm (a), 500 µm (b), 100 µm (c), 20 µm (d–h).