M. Berteroana
Fig. 1: A female plant. × 1. Fig. 2: A male plant. × 1. Fig. 3: Under side of thallus. × 2. a. appendage, I. laminar scale, m. median scale, mg. marginal scale. Fig. 4: Air pores showing internal opening; in a, open; in b, closed. × 230. Fig. 5: Part of the rim of the cupule. × 75. Fig 6: Transverse section of part of the thallus. × 75. e. epidermis, p. photosynthetic layer, v. ventral tissue. Fig. 7: Transverse section of the thallus near the margin. × 200. p. papilla. Fig. 8: Spore. × 380. Fig. 9: Appendage. × 75. Cells with oil bodies are stippled. Fig. 10: Edge of the involucre. × 75.