English: Figure 2. Light microphotographs of Ascosphaera tenax, A. atra, A. major, and A. apis.

Ascosphaera tenax A) ascospores. B) punctate spore cyst wall.; A. atra C) broken spore cyst with ascospores.; A. major D) ascospores with attached granules. E) close-up of spore cyst wall.; A. apis F) ascospores. G) detail of pale spore cyst wall with minute spots. A–B photographed from holotype; C from ARSEF 693; D from A.A. Wynns 5170; E from A.A. Wynns 5175; F from A.A. Wynns 5174. Scale bars A = 5 µm, B–C = 10 µm, D = 5 µm, E–F = 10 µm.

doi:10.1371/journal.pone.0073419.g002