Explanation of Plate 23 



I. Phialea fructigena (Bull.) Gill. 



a. Plants natural size showing substrata. 



b. Several plants ^X 5. 



c. Asous with spores and paraphysis X 1000. 



d. Spores X 2000. 



I r. Helotium friesii (Weim.) Sacc. 



a. Plants natural size. 



b. One plant X 10. 



c. Ascus with spores and paraphysis X 1500. 



d. One spore X 3000. 



ITL Chlorosplenium chlora (Schw.) Massee. 



a. Plants natural size. 



b. Two plants X 10. 



c. Ascus with paraphysis and spores X 2000. 



d. Two spores X 4000. 



148 



