Explanation of Plate 19 



I. Macropodia macropus (Pers.) Fuckel. 



a. Plants of different ages natural size. 



b. Ascus with paraphyses and spores X 300. 



c. One spore X 800. 



11. ACETABULA SULCATA (Pers.) Fuckel. 



a. One plant natural size. 



b. Ascus with paraphysis and spores X 400. 



c. One spore X 1200. 



III. Acetabulum acetabulum (L.) comb. nor. 



a. Two plants natural size. 



b. Ascus with paraphysis and spores X 500. 



c. One spore X 1200. 



146 



