Fig. 4

Ophiocordyceps bifertilis. A: Infected Polyrhachis sp.1was biting a leaf of Pteridophyta. B: Two ascomata plates attached to stromata. C, D: Cross-section of the ascoma showing the perithecial arrangement. E, F: Asci. G, H: Ascospores. I, J: Colonies on PDA medium. K, L: Phialides. Scale bars: A = 4000 µm; B = 1000 µm; C = 200 µm; D = 100 µm; E, F = 50 µm; G, H = 20 µm; I, J = 2 cm; K–M = 10 µm