Explanation of Plate XIII. 



Ascophaxus testaceus (Afong.) Phil!. 



Fig. i, a. Plants showing habitat, natural size. 



Fig. i, b. Several plants, x 10. 



Fig. i, c. Aseus and paraphsis, x 600. 



Fig. i, d. One spore removed, x 1200. 



Fig. i, e. Diagram section, x 10. 



Ascophaxus microsporias (/?. & Br.) Phil I. 



Fig. ii, a. Several plants, natural size. 



Fig. ii, h. Plants, x 10. 



Fig. n, c. Two plants, x 20. 



Fig. ii, d. Ascus and paraphyses with globose apices, x 1000. 



Fig. ii, e. One spore removed, x 2001). 



