Explanation of Plate XL 



HCMARIA TETRASPORA (Fc/c/.) So.CC. 



Fig. i, y a. Several plants showing habitat, natural size. 



Fig. i, b. Three cups, x 5. 



Fig. I, c. Ascus with its four spores and paraphysis, x 600. 



Fig. i, d. Diagram section showing concavity of hymenium, x 10. 



Fig. i, e. Spore with guttulse, x 1500. 



Humaria muralis Quel. 



Fig. ii, <7. Cups showing habitat, natural size. 



Fig. ii, />. Cups, x 5. 



Fig. ii, c. Ascus and paraphysis with spores, x 4 II I. 



Fig. ii, d. Diagram section, x 10. 



Fig. ii, c. vSpores with guttulae, x 1000. 



