Explanation of Plate 4 



I. Gyromitra esculenta (Pers.) Fries. 



a. Plants natural size. 



b. Ascus witli parapliysis and spores X 700. 



c. One spore X 1500. 



II. Helvella lacunosa Afzel. 



a. Plants natural size. 



b. Ascus with parapliysis and spores X 700. 



c. One spore X 1500. 



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